# Illinois–Indiana–Iowa League

The Illinois–Indiana–Iowa League was a low-level Minor League Baseball organization that operated for the better part of 60 seasons, with teams based in Illinois, Indiana, Iowa, Kansas, Minnesota, Missouri, Nebraska and Wisconsin. The league began play in 1901 and disbanded after the 1961 season. It was popularly known as the Three–I League and sometimes as the Three–Eye League.
The Illinois–Indiana–Iowa League played from 1901 to 1961 with some interruptions due to world events: the league did not play in 1918 due to World War I and it had a break in 1933 and 1934 because of the Great Depression. After resuming play in 1935, it closed down in 1936, but reformed and had a six-year run from 1937 through 1942, before a break due to World War II. The league resumed play in 1946, lasting through 1961, where it was largely supplanted by the Midwest League. A Class B level league from 1902 throughout its lifespan, no other league survived for as long at that level.

## History

The Illinois–Indiana–Iowa League was founded in 1901 with Rock Island, Illinois native Michael H. Sexton serving as the first president. Eight charter members began play in 1901. The Bloomington Blues, Cedar Rapids Rabbitts, Davenport River Rats, Decatur Commodores, Evansville River Rats, Rock Island Islanders, Rockford Red Sox and Terre Haute Hottentots were the charter teams. Bloomington, Illinois, Decatur, Illinois and Terre Haute, Indiana had left the Central League to join expansion teams in Cedar Rapids, Iowa, Davenport, Iowa, Evansville, Indiana, Rockford, Illinois, and Rock Island, Illinois and form the Class D level league (equivalent to a Rookie-level league today). Two expansion teams, Davenport and Evansville, chose "River Rats" as their team name.
For the second season, 1902, the league became Class B level league (equivalent to a short-season Class A league before 2021 and a Low-A league today), a classification it retained for the next 59 seasons of league operation.
The Illinois–Indiana–Iowa League was inactive during some years of World War I (1918) and World War II (1943–1945), as well as part of the Great Depression (1933-34, 1936), like many minor leagues that were forced to suspend operations or disband during those severe times.
As with many minor leagues, especially at the lower classifications, league membership fluctuated a great deal over its six decades. Overall, the league hosted teams in 31 cities during its existence. At various times it had teams in such medium-sized cities as Cedar Rapids, Davenport, Bloomington, Decatur, Danville, Peoria, Springfield, Evansville and Terre Haute. It was a Class B league in the old classification system that ran from Class D up to Class Triple-A.
The 1955 Keokuk Kernels are ranked #30 in the Top–100 All–Time minor league teams by MiLB.com. The Kernels finished with a 92–34 record and were led by Russ Nixon and Mudcat Grant.
Since 1956 its territory had largely been supplanted by the Midwest League, which began play in 1947 as the Class D level Illinois State League. After 1956 there were no Illinois or Indiana teams in the league. The final 1961 Illinois–Indiana–Iowa League franchises were the Fox Cities Foxes, Burlington Bees, Topeka Reds, Lincoln Chiefs, Cedar Rapids Braves and Des Moines Demons. In 1962, Appleton (Fox Cities), Burlington, and Cedar Rapids joined the Midwest League and the Illinois–Indiana–Iowa League folded operations when those franchises switched leagues.
The league's unique name made it a convenient reference point for any mention of the minor leagues. Casey Stengel made the following comment in later life, evidently still feeling stung from having been traded by the New York Giants to the Boston Braves in the 1923–1924 off-season, despite having hit 2 game-winning home runs in the World Series: "It's lucky I didn't hit 3 home runs in three games, or McGraw would have traded me to the 3-I League!"

## Illinois–Indiana–Iowa League teams (1901–1961)

Alton, Illinois
* Alton Blues, 1917
Appleton, Wisconsin
* Fox Cities Foxes, 1959–1961
Bloomington, Illinois
* Bloomington Blues, 1901–1902
* Bloomington Bloomers, 1903–1910, 1912–1917, 1919–1929, 1935, 1938–1939
* Bloomington Cubs, 1930–1931
* Bloomington Bengals, 1937
Burlington, Iowa
* Burlington Flints, 1952–1953
* Burlington Bees, 1954–1961
Cedar Rapids, Iowa
* Cedar Rapids Rabbits, 1901–1909, 1920–1921
* Cedar Rapids Raiders, 1938–1942, 1957
* Cedar Rapids Indians, 1950–1954
* Cedar Rapids Braves, 1958–1961
Clinton, Iowa
* Clinton Infants, 1907–1908
* Clinton Owls, 1937–1938
* Clinton Giants, 1939–1941
Danville, Illinois
* Danville Speakers, 1910–1914
* Danville Veterans, 1922–1932
* Danville Dodgers, 1946–1950
Davenport, Iowa
* Davenport River Rats, 1901–1904
* Davenport Riversides, 1905
* Davenport Knickerbockers, 1906
* Davenport Prodigals, 1909–1912
* Davenport Blue Sox, 1913–1916
* Davenport Cubs, 1946–1947
* Davenport Pirates, 1948–1949
* Davenport Quads, 1950
* Davenport Tigers, 1951–1952
* Davenport DavSox, 1957–1958
Decatur, Illinois
* Decatur Commodores, 1901–1909, 1912–1915, 1922–1932, 1935, 1937–1942, 1946–1947, 1950
* Decatur Nomads, 1911
* Decatur Commies, 1948
* Decatur Cubs, 1949
Des Moines, Iowa
* Des Moines Demons, 1959–1961
Dubuque, Iowa
* Dubuque Shamrocks, 1903–1905
* Dubuque Dubs, 1906–1910, 1912–1915
* Dubuque Hustlers, 1911
Evansville, Indiana
* Evansville River Rats, 1901–1902
* Evansville Evas, 1919–1923
* Evansville Little Evas, 1924
* Evansville Pocketeers, 1925
* Evansville Hubs, 1926–1931
* Evansville Bees, 1938–1942
* Evansville Braves, 1946–1957
Fort Wayne, Indiana
* Fort Wayne Chiefs, 1935
Freeport, Illinois
* Freeport Comeons, 1915
Green Bay, Wisconsin
* Green Bay Bluejays, 1958–1959
* Green Bay Dodgers, 1960
Hannibal, Missouri
* Hannibal Mules, 1916–1917
Joliet, Illinois
* Joliet Standards, 1903
Keokuk, Iowa
* Keokuk Kernels, 1952–1957
Lincoln, Nebraska
* Lincoln Chiefs, 1959–1961
Madison, Wisconsin
* Madison Blues, 1940–1942
Moline, Illinois
* Moline Plowboys, 1914–1917, 1919–1923, 1937–1941
Peoria, Illinois
* Peoria Distillers, 1905–1917
* Peoria Tractors, 1919–1932, 1935
* Peoria Reds, 1937
* Peoria Chiefs, 1953–1957
Quincy, Illinois
* Quincy Infants, 1911
* Quincy Old Soldiers, 1912
* Quincy Gems, 1913–1917, 1946–1956
* Quincy Red Birds, 1925–1927
* Quincy Indians, 1928–1932
Rochester, Minnesota
* Rochester A's, 1958
Rock Island, Illinois
* Rock Island Islanders, 1901–1911, 1916–1917, 1921
Rockford, Illinois
* Rockford Red Sox, 1901–1904
* Rockford Wakes, 1915–1916
* Rockford Rox, 1917, 1919–1923
Sioux City, Iowa
* Sioux City Soos, 1959–1960
Springfield, Illinois
* Springfield Foot Trackers, 1903
* Springfield Hustlers, 1904
* Springfield Senators, 1905–1912, 1925–1932, 1935
* Springfield Watchmakers, 1913–1914
* Springfield Browns, 1938–1942, 1946–1949
Terre Haute, Indiana
* Terre Haute Hottentots, 1901–1902
* Terre Haute Browns, 1919–1920
* Terre Haute Tots, 1921–1932, 1935, 1937
* Terre Haute Phillies, 1946–1954
* Terre Haute Tigers, 1955–1956
Topeka, Kansas
* Topeka Hawks, 1959
* Topeka Reds, 1960–1961
Waterloo, Iowa
* Waterloo Boosters, 1910–1911
* Waterloo Red Hawks, 1938–193
* Waterloo Hawks, 1940–1942, 1947
* Waterloo White Hawks, 1946, 1948–1956
Winona, Minnesota
* Winona A's, 1958

## Year-by-year (1901–1932)

1901 Illinois–Indiana–Iowa League Terre Haute won the title behind the impressive pitching of Mordecai Brown, future Chicago Cubs mound star.
| Team Name | Record |
| Terre Haute Hottentots | 72–39 |
| Bloomington Blues | 68–44 |
| Cedar Rapids Rabbits | 67–45 |
| Rockford Red Sox | 57–55 |
| Davenport River Rats | 51–61 |
| Evansville River Rats | 47–65 |
| Rock Island Islanders | 45–66 |
| Decatur Commodores | 40–72 |
1902 Illinois–Indiana–Iowa League
| Rockford Red Sox | 74–52 |
| Terre Haute Hottentots | 70–53 |
| Cedar Rapids Rabbits | 64–55 |
| Rock Island Islanders | 58–61 |
| Davenport River Rats | 59–63 |
| Evansville River Rats | 57–67 |
| Decatur Commodores | 55–69 |
| Bloomington Blues | 54–71 |
1903 Illinois–Indiana–Iowa League Evansville and Terre Haute joined the Central League. New teams in Dubuque, Iowa and Joliet, Illinois formed. Joliet, with a record of 14–19, moved to Springfield, Illinois on June 12, where they had a record of 28–61.
| Bloomington Bloomers | 72–47 |
| Decatur Commodores | 67–51 |
| Davenport River Rats | 65–53 |
| Rock Island Islanders | 64–54 |
| Cedar Rapids Rabbits | 60–60 |
| Rockford Red Sox | 58–60 |
| Dubuque Shamrocks | 49–72 |
| Joliet Standards/Springfield Foot Trackers | 42–80 |
1904 Illinois–Indiana–Iowa League
| Springfield Hustlers | 72–48 |
| Cedar Rapids Rabbits | 70–52 |
| Dubuque Shamrocks | 69–54 |
| Bloomington Bloomers | 60–61 |
| Decatur Commodores | 59–62 |
| Rock Island Islanders | 57–65 |
| Davenport River Rats | 52–69 |
| Rockford Red Sox | 48–76 |
1905 Illinois–Indiana–Iowa League The Rockford team folded, and a new team in Peoria, Illinois formed.
| Dubuque Shamrocks | 70–53 |
| Rock Island Islanders | 68–55 |
| Springfield Senators | 64–58 |
| Decatur Commodores | 63–58 |
| Cedar Rapids Rabbits | 63–61 |
| Bloomington Bloomers | 60–65 |
| Davenport Riversides | 56–67 |
| Peoria Distillers | 48–75 |
After the season ended, Cedar Rapids lost to the Burlington, Iowa team from the Iowa State League 4 games to 3.
1906 Illinois–Indiana–Iowa League
| Cedar Rapids Rabbits | 79–43 |
| Peoria Distillers | 74–48 |
| Dubuque Dubs | 64–55 |
| Springfield Senators | 64–56 |
| Rock Island Islanders | 58–66 |
| Decatur Commodores | 48–67 |
| Bloomington Bloomers | 51–74 |
| Davenport Knickerbockers | 45–74 |
1907 Illinois–Indiana–Iowa League The Davenport team folded. The team from Clinton, Iowa joined after leaving the Iowa State League.
| Rock Island Islanders | 86–46 |
| Decatur Commodores | 80–47 |
| Springfield Senators | 81–50 |
| Peoria Distillers | 77–52 |
| Cedar Rapids Rabbits | 72–61 |
| Clinton Infants | 53–78 |
| Bloomington Bloomers | 51–79 |
| Dubuque Dubs | 22–109 |
1908 Illinois–Indiana–Iowa League
| Springfield Senators | 82–54 |
| Decatur Commodores | 77–59 |
| Cedar Rapids Rabbits | 69–63 |
| Peoria Distillers | 77–52 |
| Dubuque Dubs | 67–69 |
| Bloomington Bloomers | 64–73 |
| Rock Island Islanders | 59–76 |
| Clinton Adults | 55–78 |
1909 Illinois–Indiana–Iowa League The Clinton team folded. A new team in Davenport, Iowa formed.
| Rock Island Islanders | 90–48 |
| Springfield Senators | 81–53 |
| Davenport Prodigals | 77–59 |
| Burlington Bloomers | 70–67 |
| Peoria Distillers | 69–67 |
| Dubuque Dubs | 64–71 |
| Decatur Commodores | 63–73 |
| Cedar Rapids Rabbits | 31–107 |
1910 Illinois–Indiana–Iowa League After the previous disappointing season, Cedar Rapids folded. The Decatur team moved to the Northern Association. The team from Waterloo, Iowa left the Central Association to join here. A new team from Danville, Illinois formed and joined the league as well.
| Springfield Senators | 88–48 |
| Rock Island Islanders | 81–56 |
| Peoria Distillers | 75–64 |
| Waterloo Boosters | 72–67 |
| Bloomington Bloomers | 60–76 |
| Dubuque Dubs | 60–79 |
| Davenport Prodigals | 59–80 |
| Danville Speakers | 57–82 |
1911 Illinois–Indiana–Iowa League The team from Bloomington folded. The Quincy, Illinois team from the Central Association joined the league. The Springfield team, with a 12–4 record, moved to Decatur, Illinois on May 31, where their record was 57–56.
| Peoria Distillers | 76–59 |
| Springfield Senators/Decatur Nomads | 69–60 |
| Quincy Infants | 71–63 |
| Danville Speakers | 69–62 |
| Davenport Prodigals | 69–69 |
| Dubuque Hustlers | 67–70 |
| Waterloo Boosters | 59–76 |
| Rock Island Islanders | 58–79 |
1912 Illinois–Indiana–Iowa League The teams from Rock Island and Waterloo folded. New teams from Springfield, Illinois and Bloomington, Indiana joined the league.
| Springfield Senators | 90–44 |
| Davenport Prodigals | 75–60 |
| Decatur Commodores | 69–67 |
| Quincy Old Soldiers | 67–70 |
| Dubuque Dubs | 65–73 |
| Danville Speakers | 63–71 |
| Bloomington Bloomers | 58–78 |
| Peoria Distillers | 56–80 |
1913 Illinois–Indiana–Iowa League
| Quincy Gems | 79–60 |
| Dubuque Dubs | 74–62 |
| Davenport Blue Sox | 68–66 |
| Danville Speakers | 69–68 |
| Decatur Commodores | 67–68 |
| Springfield Watchmakers | 66–70 |
| Bloomington Bloomers | 64–71 |
| Peoria Distillers | 57–79 |
1914 Illinois–Indiana–Iowa League The Danville team, with a record of 26–53, moved to Moline, Illinois on July 14, where their record was 20–33.
| Davenport Blue Sox | 83–52 |
| Peoria Distillers | 81–56 |
| Springfield Watchmakers | 72–60 |
| Decatur Commodores | 72–64 |
| Dubuque Dubs | 64–69 |
| Quincy Gems | 61–71 |
| Bloomington Bloomers | 56–77 |
| Danville Speakers/Moline Plowboys | 46–86 |
1915 Illinois–Indiana–Iowa League The Springfield team folded. A new team in Rockford, Illinois formed. Dubuque moved to Freeport, Illinois during the season. The Decatur team folded on August 10. The league adopted a playoff system in which the team with the best record in the first half of the season would play the team with the best record in the second half of the season.
| Moline Plowboys | 75–51 (2nd half winner) |
| Davenport Blue Sox | 76–52 (1st half winner) |
| Rockford Wakes | 72–58 |
| Quincy Gems | 62–56 |
| Peoria Distillers | 68–63 |
| Dubuque Dubs/Freeport Comeons | 48–76 |
| Bloomington Bloomers | 48–76 |
| Decatur Commodores | 37–57 |
Moline beat Davenport 4 games to 2 for the title.
1916 Illinois–Indiana–Iowa League The Freeport team folded. New teams in Hannibal, Missouri and Rock Island, Illinois formed and joined the league. The playoff system was apparently dropped.
| Peoria Distillers | 84–50 |
| Hannibal Mules | 79–57 |
| Bloomington Bloomers | 76–56 |
| Rockford Wakes | 67–66 |
| Moline Plowboys | 59–76 |
| Rock Island Islanders | 57–76 |
| Quincy Gems | 57–77 |
| Davenport Blue Sox | 56–77 |
1917 Illinois–Indiana–Iowa League The Davenport team folded. A new team in Alton, Illinois formed and joined the league.
| Peoria Distillers | 43–23 |
| Rockford Rox | 39–21 |
| Hannibal Mules | 39–27 |
| Rock Island Islanders | 36–26 |
| Quincy Gems | 27–38 |
| Moline Plowboys | 27–38 |
| Bloomington Bloomers | 25–37 |
| Alton Blues | 18–44 |
1918, The league suspended operations because of World War I.
1919 Illinois–Indiana–Iowa League The teams in Alton, Hannibal, Quincy, and Rock Island folded. New teams in Evansville, Indiana and Terre Haute, Indiana formed and joined the league.
| Bloomington Bloomers | 80–41 |
| Peoria Tractors | 68–54 |
| Evansville Black Sox | 63–58 |
| Rockford Rox | 63–60 |
| Terre Haute Browns | 50–70 |
| Moline Plowboys | 40–81 |
1920 Illinois–Indiana–Iowa League New teams in Cedar Rapids, Iowa and Rock Island, Illinois formed and joined the league. Evansville changed their names to the "Evas".
| Bloomington Bloomers | 82–57 |
| Evansville Evas | 80–56 |
| Rockford Rox | 70–70 |
| Moline Plowboys | 69–70 |
| Cedar Rapids Rabbits | 68–69 |
| Peoria Tractors | 67–71 |
| Terre Haute Browns | 58–77 |
| Rock Island Islanders | 57–81 |
1921 Illinois–Indiana–Iowa League
| Moline Plowboys | 78–55 |
| Rockford Rox | 72–64 |
| Terre Haute Tots | 70–65 |
| Peoria Tractors | 70–69 |
| Evansville Evas | 67–69 |
| Bloomington Bloomers | 65–69 |
| Cedar Rapids Rabbits | 62–72 |
| Rock Island Islanders | 57–78 |
1922 Illinois–Indiana–Iowa League The teams in Cedar Rapids and Rock Island moved to the Mississippi Valley League. New teams in Danville and Decatur formed and joined the league.
| Terre Haute Tots | 85–51 |
| Decatur Commodores | 78–58 |
| Peoria Tractors | 76–60 |
| Evansville Evas | 76–64 |
| Rockford Rox | 74–65 |
| Bloomington Bloomers | 63–75 |
| Danville Veterans | 50–87 |
| Moline Plowboys | 49–89 |
1923 Illinois–Indiana–Iowa League
| Decatur Commodores | 81–54 |
| Rockford Rox | 76–63 |
| Terre Haute Tots | 71–60 |
| Bloomington Bloomers | 72–64 |
| Evansville Evas | 72–65 |
| Peoria Tractors | 71–65 |
| Danville Veterans | 55–81 |
| Moline Plowboys | 45–91 |
1924 Illinois–Indiana–Iowa League The Rockford team folded. The Moline team moved to the Mississippi Valley League.
| Terre Haute Tots | 75–62 |
| Evansville Little Evas | 75–64 |
| Bloomington Bloomers | 71–64 |
| Peoria Tractors | 71–66 |
| Danville Veterans | 59–75 |
| Decatur Commodores | 58–78 |
1925 Illinois–Indiana–Iowa League New teams in Quincy and Springfield formed and joined the league.
| Peoria Tractors | 89–48 |
| Terre Haute Tots | 81–54 |
| Evansville Pocketeers | 72–63 |
| Danville Veterans | 69–66 |
| Decatur Commodores | 62–73 |
| Bloomington Bloomers | 56–74 |
| Springfield Senators | 56–79 |
| Quincy Red Birds | 54–82 |
1926 Illinois–Indiana–Iowa League
| Springfield Senators | 77–59 |
| Peoria Tractors | 75–62 |
| Terre Haute Tots | 73–61 |
| Danville Veterans | 72–65 |
| Evansville Hubs | 72–66 |
| Decatur Commodores | 69–67 |
| Quincy Red Birds | 62–75 |
| Bloomington Bloomers | 43–88 |
Springfield played Bay City of the Michigan State League and won 4 games to none. They were leading against Des Moines of the Western League 3 games to 1 when the series was canceled due to cold weather.
1927 Illinois–Indiana–Iowa League
| Danville Veterans | 86–50 |
| Peoria Tractors | 87–51 |
| Springfield Senators | 72–66 |
| Terre Haute Tots | 70–66 |
| Decatur Commodores | 62–70 |
| Quincy Red Birds | 63–75 |
| Bloomington Bloomers | 55–83 |
| Evansville Hubs | 50–84 |
1928 Illinois–Indiana–Iowa League The league returned to the playoff format in which the team with the best record in the first half of the season played the team with the best records in the second half of the season for the title.
| Decatur Commodores | 81–49 (2nd half winner) |
| Terre Haute Tots | 75–59 (1st half winner) |
| Danville Veterans | 69–57 |
| Peoria Tractors | 69–66 |
| Evansville Hubs | 62–68 |
| Bloomington Bloomers | 61–69 |
| Springfield Senators | 60–79 |
| Quincy Indians | 50–85 |
Decatur beat Terre Haute for the title 4 games to 1, with 1 tie.
1929 Illinois–Indiana–Iowa League Two teams with the nickname "Tractors" played in the league this season.
| Quincy Indians | 82–56 |
| Decatur Commodores | 81–57 |
| Evansville Hubs | 79–57 |
| Terre Haute Tots | 72–66 |
| Bloomington Bloomers | 70–70 |
| Peoria Tractors | 61–76 |
| Springfield Tractors | 59–77 |
| Danville Veterans | 46–91 |
Quincy played Canton of the Central League after the season ended and lost 4 games to 2.
1930 Illinois–Indiana–Iowa League The league returned to the best record in the 1st half vs. best record in the 2nd half playoff system.
| Evansville Hubs | 79–55 (2nd half winner) |
| Quincy Indians | 78–58 |
| Decatur Commodores | 77–59 |
| Danville Veterans | 71–67 (1st half winner) |
| Springfield Senators | 62–70 |
| Peoria Tractors | 57–77 |
| Bloomington Cubs | 57–78 |
| Terre Haute Tots | 53–76 |
Danville defeated Evansville 4 games to 2 for the title. Danville went on to play Springfield of the Central League and lead 3 games to 2 when the series was cancelled because of poor attendance.
1931 Illinois–Indiana–Iowa League
| Springfield Senators | 72–45 (1st half winner) |
| Quincy Indians | 67–49 (2nd half winner) |
| Evansville Hubs | 67–58 |
| Decatur Commodores | 64–57 |
| Bloomington Cubs | 58–61 |
| Terre Haute Tots | 55–68 |
| Peoria Tractors | 51–68 |
| Danville Veterans | 44–72 |
Quincy beat Springfield 4 games to 2 for the championship.
1932 Illinois–Indiana–Iowa League The teams in Bloomington and Evansville folded before the season, and the Springfield and Decatur teams folded on July 12.
| Team Name | Affiliation | Record |
| Terre Haute Tots | | 42–27 (1st half winner) |
| Peoria Tractors | | 20–38 (2nd half winner) |
| Quincy Indians | Cleveland Indians | 38–31 |
| Danville Veterans | St. Louis Cardinals | 29–39 |
| Springfield Senators | | 32–37 |
| Decatur Commodores | | 24–43 |
The Terre Haute, Peoria, Quincy, and Danville teams all folded on July 15, as did the league itself. The league was restarted in 1935, 1937–1942, and 1946–1961.

## Year–by–year 1935 to 1949

1935 Illinois–Indiana–Iowa League
| Team standings | W | L | PCT | GB | Managers |
| Bloomington Bloomers | 75 | 44 | .630 | — | Burleigh Grimes |
| Springfield Senators | 74 | 45 | .622 | 1 | Bob Coleman |
| Decatur Commodores | 59 | 56 | .513 | 14 | John Butler/ Cliff Knox |
| Terre Haute Tots | 57 | 61 | .483 | 17½ | Bill Burwell |
| Fort Wayne Chiefs | 52 | 71 | .423 | 25 | Bruno Betzel |
| Peoria Tractors | 38 | 78 | .328 | 35½ | Jack Sheehan / Bill Rodgers |
Playoff: Springfield 4 games, Bloomington 2. Bloomington was declared the winner when Springfield refused to replay protested final game that was upheld by the league president.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Chet Laabs | Fort Wayne | BA | .384 | Max Macon | Bloomington | W | 19 |
| Hersh Martin | Bloomington | Runs | 112 | Johnny Hutchings | Peoria | SO | 166 |
| Jimmy Outlaw | Decatur | Hits | 157 | Lefty Smoll | Springfield | PCT | .765 13–4 |
| Chet Laabs | Fort Wayne | RBI | 96 |
| Chet Laabs | Fort Wayne | HR | 24 |
1937 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Managers |
| Clinton Owls | 75 | 36 | .676 | — | Clyde Sukeforth |
| Moline Plowboys | 74 | 41 | .643 | 3 | Mike Gazella |
| Decatur Commodores | 53 | 64 | .453 | 25 | George Payne |
| Peoria Reds | 45 | 66 | .405 | 30 | Ben Tincup / Wayne Blackburn |
| Bloomington Bengals | 21 | 38 | .356 | NA | Joseph Sims |
| Terre Haute Tots | 15 | 38 | .283 | NA | Walter Holke |
Bloomington and Terre Haute disbanded July 3, at the end of the first half. Playoff: Moline 4 games, Clinton 2.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Hank Majeski | Moline | BA | .345 | Kirby Higbe | Moline | W | 21 |
| George Cisar | Clinton | Runs | 98 | Kirby Higbe | Moline | SO | 257 |
| Joe Mene | Moline | Hits | 164 | Kirby Higbe | Moline | PCT | .808 21–5 |
| Bert Haas | Clinton | HR | 13 |
1938 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Evansville Bees | 77 | 47 | .621 | — | 98,817 | Bob Coleman |
| Decatur Commodores | 68 | 58 | .540 | 10 | 50,766 | Tony Kaufmann |
| Moline Plowboys | 67 | 59 | .532 | 11 | 22,684 | Mike Gazella |
| Springfield Browns | 63 | 60 | .512 | 13½ | 66,944 | Walter Holke |
| Waterloo Red Hawks | 59 | 65 | .476 | 18 | 43,980 | Lennie Backer |
| Cedar Rapids Raiders | 56 | 63 | .471 | 18½ | 39,211 | Cap Crossley |
| Bloomington Bloomers | 56 | 65 | .463 | 19½ | 24,368 | Bob O'Farrell |
| Clinton Owls | 46 | 75 | .380 | 29½ | 35,119 | Ollie Marquardt |
Playoffs: Decatur 3 games, Springfield 2; Mobile 3 games, Evansville 1. Finals: Decatur 4 games, Moline 1.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Lou Novikoff | Moline | BA | .367 | Emil Bildilli | Springfield | W | 18 |
| Eddie Lake | Decatur | Runs | 117 | Floyd Giebell | Evansville | W | 18 |
| Lou Novikoff | Moline | Hits | 186 | Emil Bildilli | Springfield | SO | 185 |
| Lou Novikoff | Moline | RBI | 114 | Floyd Giebell | Evansville | ERA | 1.98 |
| Frank Piet | Springfield | HR | 25 | Emil Bildilli | Springfield | PCT | .818 18–4 |
1939 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Cedar Rapids Raiders | 73 | 46 | .613 | — | 56,399 | Ollie Marquardt |
| Evansville Bees | 73 | 48 | .603 | 1 | 81,371 | Bob Coleman |
| Decatur Commodores | 68 | 51 | .571 | 5 | 49,710 | Tony Kaufmann |
| Springfield Browns | 65 | 55 | .542 | 8½ | 37,916 | Walter Holke |
| Clinton Giants | 63 | 58 | .521 | 11 | 41,712 | Blondy Ryan |
| Bloomington Bloomers | 49 | 73 | .402 | 25½ | 14,005 | Bud Connolly |
| Moline Plowboys | 49 | 73 | .402 | 25½ | 20,911 | Mike Gazella |
| Waterloo Red Hawks | 42 | 78 | .350 | 31½ | 28,935 | Cap Crossley |
Playoffs: Springfield 3 games, Evansville 1; Decatur 3 games, Cedar Rapids 1. Finals: Springfield 3 games, Decatur 2.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Del Jones | Cedar Rapids | BA | .362 | Joe Callahan | Evansville | W | 19 |
| Del Jones | Cedar Rapids | Runs | 120 | Mike Naymick | Cedar Rapids | SO | 181 |
| Del Jones | Cedar Rapids | Hits | 168 | Joe Callahan | Evansville | ERA | 1.86 |
| George Binks | Cedar Rapids | RBI | 116 | Roger Wolff | Cedar Rapids | PCT | .750 15–5 |
| Fred Stroble | Springfield | HR | 21 |
1940 Illinois–Indiana–Iowa League
| Team standings | W | L | PCT | GB | Attend | Managers |
| Cedar Rapids Raiders | 74 | 51 | .592 | — | 46,475 | Ollie Marquardt |
| Decatur Commodores | 73 | 52 | .584 | 1 | 37,667 | Tony Kaufmann / Boyce Morrow / Lou Scoffic |
| Springfield Browns | 73 | 53 | .579 | 1½ | 56,569 | Art Scharein |
| Evansville Braves | 68 | 55 | .553 | 5 | 60,815 | Bob Coleman |
| Clinton Giants | 62 | 57 | .521 | 9 | 40,277 | Josh Billings |
| Madison Blues | 61 | 62 | .496 | 12 | 36,740 | Bud Connolly |
| Moline Plowboys | 46 | 78 | .471 | 27½ | 13,639 | Mike Gazella |
| Waterloo White Hawks | 36 | 85 | .298 | 36 | 23,441 | John Fitzpatrick / Frederick Bedore |
Playoffs: Cedar Rapids 3 games, Springfield 0; Decatur 3 games, Evansville 2. Finals: Cedar Rapids 3 games, Decatur 1.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Lou Scoffic | Decatur | BA | .358 | Mike Kash | Madison | W | 20 |
| Chuck Workman | Cedar Rapids | Runs | 108 | Max Surkont | Decatur | SO | 212 |
| Lou Scoffic | Decatur | Hits | 164 | Max Surkont | Decatur | ERA | 2.50 |
| Don Manno | Evansville | RBI | 113 | Max Surkont | Decatur | PCT | .792 19–5 |
| Chuck Workman | Cedar Rapids | HR | 29 |
1941 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Evansville Bees | 80 | 45 | .640 | — | 69,156 | Bob Coleman |
| Cedar Rapids Raiders | 72 | 49 | .595 | 6 | 40,323 | Ollie Marquardt |
| Decatur Commodores | 67 | 56 | .545 | 12 | 38,485 | Dib Williams |
| Springfield Browns | 65 | 59 | .524 | 14½ | 41,194 | Art Scharein |
| Waterloo White Hawks | 59 | 65 | .476 | 20½ | 55,456 | Louis Brower / Johnny Mostil |
| Clinton Giants | 57 | 68 | .456 | 23 | 25,861 | Josh Billings |
| Madison Blues | 52 | 71 | .423 | 27 | 28,434 | Ivy Griffin |
| Moline Plowboys | 43 | 82 | .344 | 37 | 16,534 | Joe Mowry |
Playoffs: Decatur 3 games, Evansville 2; Cedar Rapids 3 games, Springfield 1. Finals: Cedar Rapids 3 games, Decatur 2.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Hank Edwards | Cedar Rapids | BA | .364 | Warren Spahn | Madison | W | 19 |
| Hank Edwards | Cedar Rapids | Runs | 101 | John Clay | Decatur | SO | 204 |
| Delbert Jones | Cedar Rapids | Runs | 101 | Warren Spahn | Madison | ERA | 1.83 |
| Hank Edwards | Cedar Rapids | Hits | 172 | Warren Spahn | Madison | PCT | .760 19–6 |
| Hank Edwards | Cedar Rapids | RBI | 113 |
| Hank Edwards | Cedar Rapids | HR | 23 |
1942 Illinois–Indiana–Iowa League
| Team standings | W | L | PCT | GB | Managers |
| Cedar Rapids Raiders | 74 | 43 | .632 | — | Ollie Marquardt |
| Springfield Browns | 67 | 48 | .583 | 6 | Jimmy Adair |
| Evansville Bees | 65 | 54 | .546 | 10 | Bob Coleman |
| Madison Blues | 55 | 62 | .470 | 19 | Walter Millies |
| Waterloo White Hawks | 47 | 71 | .398 | 27½ | Johnny Mostil |
| Decatur Commodores | 45 | 75 | .375 | 30½ | Abe White / Tony Kaufmann |
Playoffs: Cedar Rapids 3 games, Evansville 2; Madison 3 games, Springfield 1. Finals: Cedar Rapids 3 games, Madison 0.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Whitey Platt | Madison | BA | .395 | Bryan Stephens | Cedar Rapids | W | 20 |
| Blas Monaco | Cedar Rapids | Runs | 95 | Len Perme | Waterloo | SO | 204 |
| Ducky Detweiler | Evansville | Hits | 149 | John Pavlick | Springfield | ERA | 2.96 |
| Pat Seerey | Cedar Rapids | RBI | 91 | Bryan Stephens | Cedar Rapids | PCT | .833 20–4 |
| Pat Seerey | Cedar Rapids | HR | 33 |
The league did not play in 1943, 1944 and 1945 due to World War II 1946 Illinois–Indiana–Iowa League
| Team standings | W | L | PCT | GB | Managers |
| Davenport Cubs | 76 | 44 | .618 | — | Bill Kelly |
| Danville Dodgers | 76 | 44 | .618 | — | Jake Pitler / Paul Chervinko |
| Evansville Braves | 68 | 51 | .571 | 7½ | Bob Coleman |
| Terre Haute Phillies | 63 | 60 | .512 | 14½ | Ray Brubaker |
| Waterloo White Hawks | 62 | 63 | .496 | 16½ | Johnny Mostil |
| Springfield Browns | 58 | 67 | .464 | 20½ | Tony Robello |
| Decatur Commodores | 43 | 72 | .374 | 30½ | Harrison Wickel |
| Quincy Gems | 37 | 82 | .311 | 38½ | Edward Marleau / Cedric Durst |
Playoffs: Davenport defeated Danville in a one game playoff for first place; Evansville 3 games, Davenport 1. Terre Haute 3 games, Danville 1. Finals: Evansville 3 games, Terre Haute 0.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Rube Walker | Davenport | BA | .354 | Bob Kohout | Danville | W | 14 |
| Richard Welker | Terre Haute | Runs | 105 | Ken Manus | Waterloo | W | 14 |
| Cal Abrams | Danville | Hits | 146 | Charles Shipman | Evansville | W | 14 |
| Bill Sanders | Terre Haute | RBI | 96 | Ray Shore | Springfield | SO | 157 |
| Bill Sanders | Terre Haute | HR | 14 | Jean Davison | Davenport | ERA | 2.18 |
| Jim Christie | Terre Haute | HR | 14 | Jean Davison | Davenport | PCT | .867 13–2 |
1947 Illinois–Indiana–Iowa League
| Team standings | W | L | PCT | GB | Attend | Managers |
| Danville Dodgers | 79 | 47 | .627 | — | 63,926 | Paul Chervinko |
| Terre Haute Phillies | 74 | 51 | .592 | 4½ | 133,654 | Ray Brubaker / Whitey Gluchoski / Jack Sanford |
| Springfield Browns | 71 | 55 | .563 | 8 | 58,009 | Ben Huffman |
| Waterloo Hawks | 71 | 55 | .563 | 8 | 174,064 | Johnny Mostil / Jack Onslow |
| Evansville Braves | 70 | 55 | .560 | 8½ | 133,163 | Bob Coleman |
| Davenport Cubs | 55 | 70 | .440 | 23½ | 50,846 | Dickie Kerr / Morrie Arnovich |
| Quincy Gems | 50 | 75 | .400 | 28½ | 100,096 | Gordie Hinkle |
| Decatur Commodores | 31 | 93 | .250 | 47 | 33,069 | Gene Corbett |
Playoffs: Springfield defeated Waterloo in a playoff for third place; Danville 3 games, Springfield 2; Waterloo 3 games, Terre Haute 0. Finals: Waterloo 4 games, Danville 1.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Hank Arft | Springfield | BA | .364 | Ken Olson | Danville | W | 22 |
| Jerry Scala | Waterloo | Runs | 116 | John Perkovich | Waterloo | SO | 207 |
| Jerry Scala | Waterloo | Hits | 163 | John Perkovich | Waterloo | ERA | 2.50 |
| Ray Fletcher | Evansville | RBI | 115 | Ken Olson | Danville | PCT | .846 22–4 |
| Ed Ehlers | Quincy | HR | 22 |
1948 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Quincy Gems | 81 | 45 | .643 | - | 124,053 | James Adlam |
| Danville Dodgers | 72 | 51 | .585 | 7½ | 62,284 | Paul Chervinko |
| Evansville Braves | 67 | 54 | .554 | 11½ | 101,652 | Bob Coleman |
| Terre Haute Phillies | 65 | 57 | .533 | 14 | 130,009 | Pat Colgan / Dale Jones |
| Waterloo White Hawks | 63 | 61 | .508 | 17 | 170,018 | Pete Fox |
| Springfield Browns | 56 | 67 | .455 | 23½ | 54,463 | Hank Helf / Irv Hall |
| Decatur Commies | 50 | 75 | .400 | 30½ | 44,943 | Red Lucas / Nelson Burbrink |
| Davenport Pirates | 41 | 85 | .325 | 40 | 45,711 | Ival Goodman |
Playoffs: Terre Haute 3 games, Danville 2. Evansville 3 games, Quincy 2. Finals: Evansville 4 games, Terre Haute 0.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| John Novosel | Springfield | BA | .339 | Art Bohman | Quincy | W | 16 |
| Bob Marquis | Quincy | Runs | 108 | Lew Burdette | Quincy | W | 16 |
| Bob Marquis | Quincy | Hits | 164 | Glenn Thompson | Evansville | SO | 230 |
| Kite Thomas | Quincy | RBI | 99 | David Thieke | Danville | ERA | 1.81 |
| John Novosel | Springfield | HR | 22 | Glenn Thompson | Evansville | PCT | .789 15–4 |
| Don Lenhardt | Springfield | HR | 22 |
1949 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Evansville Braves | 74 | 51 | .592 | — | 145,657 | Bob Coleman |
| Waterloo White Hawks | 70 | 56 | .556 | 4½ | 146,421 | Ben Huffman / Frederick Shaffer |
| Terre Haute Phillies | 69 | 56 | .552 | 5 | 122,493 | Lee Riley |
| Davenport Pirates | 67 | 59 | .532 | 7½ | 133,505 | Bill Burwell |
| Quincy Gems | 59 | 67 | .468 | 15½ | 85,130 | James Adlam |
| Decatur Cubs | 55 | 70 | .440 | 19 | 51,147 | Morrie Arnovich |
| Danville Dodgers | 55 | 70 | .440 | 19 | 49,605 | Lou Rochelli |
| Springfield Browns | 53 | 73 | .421 | 21½ | 48,952 | Doc Crandall |
Playoffs: Evansville 3 games, Terre Haute 2; Davenport 3 games, Waterloo 2. Finals: Davenport 3 games, Evansville 0.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Emil Tellinger | Quincy | BA | .322 | Bob Miller | Terre Haute | W | 19 |
| Herman Rhodes | Waterloo | Runs | 86 | Paul Stuffel | Terre Haute | SO | 288 |
| Robert Anderlik | Decatur | Hits | 140 | William Koszarek | Terre Haute | ERA | 1.97 |
| Ed McGhee | Waterloo | RBI | 88 | William Koszarek | Terre Haute | PCT | .875 14–2 |
| Lloyd Lowe | Decatur | HR | 15 |
| Emil Tellinger | Quincy | HR | 15 |

## Year-by-year 1950 to 1961

1950 Illinois–Indiana–Iowa League 1950 Three-I League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Terre Haute Phillies | 78 | 48 | .619 | — | 111,228 | Dan Carnevale |
| Danville Dodgers | 74 | 52 | .587 | 4.0 | 51,616 | Jim Bivin |
| Waterloo White Hawks | 70 | 56 | .556 | 8.0 | 119,244 | Otto Denning |
| Quincy Gems | 64 | 60 | .516 | 13.0 | 53,322 | James Adlam |
| Cedar Rapids Indians | 59 | 67 | .468 | 19.0 | 85,038 | Billy Jurges |
| Evansville Braves | 56 | 70 | .444 | 22.0 | 102,865 | Ernie White |
| Decatur Commodores | 52 | 74 | .413 | 26.0 | 35,516 | Morrie Arnovich |
| Davenport Quads | 49 | 75 | .395 | 28.0 | 90,584 | Gene Hasson |
Playoffs: Terre Haute 3 games, Quincy 0; Danville 3 games, Waterloo 0. Finals: Terre Haute 3 games, Danville 1.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Jim King | Cedar Rapids | BA | .332 | Jacob Schmitt | Terre Haute | W | 21 |
| Jack Lillis | Danville | Runs | 110 | Niles Jordan | Terre Haute | SO | 206 |
| Frank Marchio | Quincy | Hits | 162 | Niles Jordan | Terre Haute | ERA | 2.35 |
| Frank Marchio | Quincy | RBI | 112 | Jacob Schmitt | Terre Haute | PCT | .808 21–5 |
| Allen Thomas | Waterloo | HR | 25 |
1951 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Terre Haute Phillies | 75 | 55 | .577 | — | 81,511 | Skeeter Newsome |
| Evansville Braves | 69 | 60 | .535 | 5.5 | 101,254 | Bob Coleman |
| Quincy Gems | 65 | 65 | .500 | 10.0 | 62,503 | Dutch Zwilling |
| Cedar Rapids Indians | 64 | 66 | .492 | 11.0 | 92,102 | Kerby Farrell |
| Waterloo White Hawks | 60 | 69 | .466 | 14.5 | 79,687 | Otto Denning / Ed Taylor / Skeeter Webb |
| Davenport Tigers | 56 | 74 | .431 | 19.0 | 100,328 | Marv Olson |
Playoffs: Quincy 3 games, Terre Haute 1; Cedar Rapids 3 games, Evansville 2. Finals: Quincy 3 games, Cedar Rapids 2.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Jim Command | Terre Haute | BA | .328 | Alfred Dumouchelle | Evansville | W | 17 |
| James Deery | Terre Haute | Runs | 103 | Jack Urban | Quincy | W | 17 |
| Jim Command | Terre Haute | Hits | 166 | Bob P. Coleman | Cedar Rapids | W | 17 |
| Robert Erps | Davenport | RBI | 97 | Jack Urban | Quincy | SO | 164 |
| Bill Renna | Quincy | HR | 26 | Ben Johnson | Evansville | ERA | 2.47 |
| | | | | Daniel Ramer | Terre Haute | PCT | .750 15–5 |
1952 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Evansville Braves | 74 | 47 | .612 | — | 124,381 | Bob Coleman |
| Terre Haute Phillies | 75 | 49 | .605 | 0.5 | 63,267 | Skeeter Newsome |
| Burlington Flints | 64 | 60 | .516 | 11.5 | 57,259 | Len Schulte |
| Waterloo White Hawks | 65 | 61 | .515 | 11.5 | 75,071 | Skeeter Webb |
| Keokuk Kernels | 56 | 66 | .459 | 18.5 | 64,931 | Rudy Laskowski |
| Davenport Tigers | 54 | 69 | .439 | 21.0 | 71,989 | Marv Owen |
| Quincy Gems | 54 | 72 | .429 | 22.5 | 45,541 | Paul Chervinko |
| Cedar Rapids Indians | 53 | 71 | .427 | 22.5 | 94,428 | Jimmy Bloodworth |
Playoffs: Evansville 3 games, Burlington 2; Terre Haute 3 games, Waterloo 0. Finals: Terre Haute 3 games, Evansville 1.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Art Pennington | Keokuk | BA | .349 | George Yorke | Evansville | W | 17 |
| Art Pennington | Keokuk | Runs | 126 | Bud Daley | Cedar Rapids | SO | 198 |
| Chuck Harmon | Burlington | Hits | 153 | Gerald Speck | Waterloo | ERA | 2.44 |
| Horace Garner | Evansville | RBI | 107 | Stewart Alton | Evansville | PCT | .786 11–3 |
| Robert Erps | Waterloo | HR | 27 |
1953 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Terre Haute Phillies | 76 | 52 | .594 | — | 64,428 | Hub Kittle |
| Quincy Gems | 70 | 58 | .547 | 6.0 | 75,363 | Vern Hoscheit |
| Evansville Braves | 70 | 59 | .543 | 6.5 | 88,438 | Bob Coleman |
| Waterloo White Hawks | 69 | 60 | .535 | 7.5 | 93,153 | Zack Taylor |
| Peoria Chiefs | 63 | 65 | .492 | 13.0 | 124,866 | Whitey Kurowski |
| Cedar Rapids Indians | 63 | 65 | .492 | 13.0 | 93,501 | Al Kubski / William Prince |
| Keokuk Kernels | 53 | 75 | .414 | 23.0 | 76,405 | Rudy Laskowski |
| Burlington Flints | 49 | 79 | .383 | 27.0 | 49,370 | Johnny Vander Meer |
Playoffs: Evansville 3 games, Terre Haute 2; Quincy 3 games, Waterloo 1. Finals: Quincy 3 games, Evansville 0.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Bob Coats | Cedar Rapids | BA | .327 | Jim Owens | Terre Haute | W | 22 |
| James Fishback | Peoria | Runs | 107 | Seth Morehead | Terre Haute | SO | 206 |
| Bob Coats | Cedar Rapids | Hits | 162 | Joe Stanka | Cedar Rapids | ERA | 2.35 |
| Ed Barbarito | Quincy | Hits | 162 | Jim Owens | Terre Haute | PCT | .733 22–8 |
| Ed Barbarito | Quincy | RBI | 127 |
| Marv Throneberry | Quincy | HR | 30 |
1954 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Evansville Braves | 81 | 54 | .600 | — | 71,691 | Bob Coleman |
| Keokuk Kernels | 78 | 58 | .574 | 3.5 | 49,957 | Jo-Jo White |
| Peoria Chiefs | 73 | 63 | .537 | 8.5 | 78,497 | Whitey Kurowski |
| Quincy Gems | 71 | 64 | .526 | 10.0 | 54,168 | Vern Hoscheit |
| Waterloo White Hawks | 66 | 69 | .489 | 15.0 | 51,600 | Walter Millies |
| Cedar Rapids Indians | 63 | 72 | .467 | 18.0 | 60,605 | William Prince |
| Terre Haute Phillies | 60 | 76 | .441 | 21.5 | 37,104 | Hub Kittle |
| Burlington Bees | 50 | 86 | .368 | 31.5 | 37,010 | Doc Crandall |
Playoffs: Peoria 3 games, Evansville 1; Quincy 3 games, Keokuk 1. Finals: Quincy 3 games, Peoria 0.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Tom Gott | Quincy | BA | .348 | Stan Pitula | Keokuk | W | 20 |
| Ed Barbarito | Quincy | Runs | 121 | Stan Pitula | Keokuk | SO | 172 |
| Tom Gott | Quincy | Hits | 168 | Ray Rippelmeyer | Evansville | ERA | 2.91 |
| Bob Kosis | Peoria | RBI | 121 | Ray Rippelmeyer | Evansville | PCT | .762 16–5 |
| Ed Barbarito | Quincy | HR | 35 |
1955 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Keokuk Kernels | 92 | 34 | .730 | — | 39,179 | Pinky May |
| Waterloo White Hawks | 70 | 56 | .556 | 22.0 | 71,864 | Dutch Dorman / Willard Marshall |
| Peoria Chiefs | 63 | 63 | .500 | 29.0 | 62,347 | Whitey Kurowski |
| Burlington Bees | 62 | 64 | .492 | 30.0 | 91,946 | Harold Meek |
| Evansville Braves | 60 | 66 | .476 | 32.0 | 47,414 | Bob Coleman |
| Terre Haute Tigers | 56 | 70 | .444 | 36.0 | 50,334 | Stubby Overmire |
| Quincy Gems | 52 | 74 | .413 | 40.0 | 39,081 | Vern Hoscheit |
| Cedar Rapids Raiders | 49 | 77 | .389 | 43.0 | 58,611 | Ray Perry |
Playoffs: Keokuk 3 games, Peoria 0; Burlington 3 games, Waterloo 1. Finals: Keokuk 3 games, Burlington 1.
Player Statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Russ Nixon | Keokuk | BA | .385 | Mudcat Grant | Keokuk | W | 19 |
| John Romano | Waterloo | Runs | 108 | Bob Yanen | Keokuk | SO | 177 |
| Tony Kubek | Quincy | Hits | 157 | Bill Dailey | Keokuk | ERA | 2.52 |
| John Romano | Waterloo | RBI | 124 | Mudcat Grant | Keokuk | PCT | .864 19–3 |
| John Romano | Waterloo | HR | 38 |
1956 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Evansville Braves | 84 | 36 | .700 | — | 60,910 | Bob Coleman |
| Waterloo White Hawks | 62 | 56 | .525 | 21.0 | 46,119 | Ira Hutchinson |
| Keokuk Kernels | 60 | 59 | .504 | 23.5 | 47,440 | Pinky May |
| Peoria Chiefs | 58 | 58 | .500 | 24.0 | 54,359 | George Kissell |
| Quincy Gems | 56 | 64 | .467 | 28.0 | 35,308 | Vern Hoscheit |
| Burlington Bees | 46 | 75 | .380 | 38.5 | 68,260 | Ed McDade |
| Cedar Rapids Raiders | 44 | 76 | .367 | 40.0 | 47,352 | George Scherger |
| Terre Haute Tigers | 40 | 26 | .606 | NA | 23,368 | Bill Norman / Charlie Metro |
Terre Haute disbanded July 3. Playoffs: None Scheduled
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Horace Garner | Evansville | BA | .354 | Don Nottebart | Evansville | W | 18 |
| Lee Maye | Evansville | Runs | 103 | Dave Wegereck | Keokuk | SO | 158 |
| Lee Maye | Evansville | Hits | 159 | Don Nottebart | Evansville | ERA | 2.24 |
| Lee Maye | Evansville | RBI | 99 | Don Nottebart | Evansville | PCT | .857 18–3 |
| Clyde McNeal | Cedar Rapids | HR | 27 |
1957 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Evansville Braves | 81 | 49 | .623 | — | 54,295 | Bob Coleman |
| Peoria Chiefs | 80 | 49 | .620 | .5 | 54,737 | Vern Hoscheit |
| Davenport DavSox | 65 | 65 | .500 | 16 | 79,478 | Skeeter Scalzi |
| Burlington Bees | 57 | 71 | .445 | 23 | 58,771 | Ken Raffensberger |
| Keokuk Kernels | 55 | 74 | .426 | 25.5 | 35,028 | Pinky May |
| Cedar Rapids Raiders | 49 | 79 | .383 | 31 | 54,717 | Danny Ozark |
Playoffs: None Scheduled
Player Statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Horace Garner | Evansville | BA | .334 | Don Nichols | Peoria | W | 20 |
| Billy Smith | Evansville | Runs | 107 | Hal Trosky Jr. | Davenport | SO | 204 |
| George Holder | Evansville | Hits | 148 | Don Nichols | Peoria | ERA | 2.09 |
| Horace Garner | Evansville | RBI | 100 | Don Nichols | Peoria | PCT | .870 20–3 |
| Jim Koranda | Cedar Rapids | HR | 31 |
1958 Illinois–Indiana–Iowa League - schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Cedar Rapids Braves | 77 | 53 | .592 | — | 81,437 | Alex Monchak |
| Davenport DavSox | 71 | 58 | .550 | 5.5 | 61,522 | Ira Hutchinson |
| Green Bay Bluejays | 65 | 64 | .504 | 11.5 | 63,782 | Pete Reiser |
| Burlington Bees | 62 | 67 | .481 | 14.5 | 51,632 | Walt Dixon |
| Rochester A's / Winona A's | 57 | 73 | .438 | 20.0 | 39,589 | Burl Storie / Lew Krausse |
| Fox Cities Foxes | 56 | 73 | .434 | 20.5 | 58,602 | Pete Suder |
Rochester (20—37) moved to Winona June 29. Playoff: Cedar Rapids 3 games, Davenport 2.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Carlos Pascual | Fox Cities | BA | .372 | Bill Hamilton | Cedar Rapids | W | 15 |
| Frank Howard | Green Bay | Runs | 104 | Ed Rakow | Green Bay | W | 15 |
| Bob Sager | Davenport | Hits | 180 | Robert Sedlak | Green Bay | W | 15 |
| Frank Howard | Green Bay | RBI | 119 | Stan Horvatin | Roches/Winona | SO | 210 |
| Frank Howard | Green Bay | HR | 37 | Bill Hamilton | Cedar Rapids | ERA | 2.18 |
| | | | | Bob Hendley | Cedar Rapids | PCT | .737 14–5 |
1959 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Des Moines Demons | 78 | 48 | .619 | — | 86,923 | Chuck Kress |
| Green Bay Bluejays | 74 | 51 | .592 | 3.5 | 41,107 | Stan Wasiak |
| Topeka Hawks | 69 | 56 | .552 | 8.5 | 59,803 | Johnny Vander Meer |
| Fox Cities Foxes | 59 | 67 | .468 | 19 | 51,004 | Jack McKeon |
| Lincoln Chiefs | 58 | 68 | .460 | 20 | 44,783 | Ira Hutchinson |
| Sioux City Soos | 58 | 68 | .460 | 20 | 38,332 | Bill Capps |
| Burlington Bees | 54 | 72 | .429 | 24 | 53,536 | Ray Mueller |
| Cedar Rapids Braves | 53 | 73 | .421 | 25 | 70,039 | Alex Monchak |
Playoff: Green Bay 3 games, Des Moines 1.
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Hernan Valdes | Fox Cities | BA | .330 | Bart Dziadek | Topeka | W | 15 |
| Cal Emery | Des Moines | Runs | 107 | Larry Maxie | Cedar Rapids | SO | 187 |
| Dick Howser | Sioux City | Runs | 107 | Jim Brewer | Burlington | ERA | 2.67 |
| George Scott | Green Bay | Hits | 155 | Andres Ayon | Topeka | PCT | .750 12–4 |
| Cal Emery | Des Moines | RBI | 129 |
| Cal Emery | Green Bay | HR | 27 |
1960 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Fox Cities Foxes | 82 | 56 | .594 | — | 61,062 | Earl Weaver |
| Lincoln Chiefs | 71 | 66 | .518 | 10.5 | 45,170 | Ira Hutchinson |
| Sioux City Soos | 71 | 68 | .511 | 11.5 | 41,385 | Bobby Hofman |
| Cedar Rapids Braves | 71 | 69 | .507 | 12.0 | 62,358 | Jimmy Brown |
| Burlington Bees | 66 | 74 | .471 | 17.0 | 51,988 | Hardy Peterson |
| Green Bay Dodgers | 65 | 73 | .471 | 17.0 | 29,940 | Stan Wasiak |
| Des Moines Demons | 64 | 74 | .464 | 18.0 | 53,828 | Andy Seminick |
| Topeka Reds | 64 | 74 | .464 | 18.0 | 36,365 | Johnny Vander Meer |
Playoff: None Scheduled
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Pete Ward | Fox Cities | BA | .345 | Ron Woods | Lincoln | W | 17 |
| Frank Montgomery | Fox Cities | Runs | 111 | Hank Fischer | Cedar Rapids | SO | 217 |
| Gerry Reimer | Des Moines | Hits | 179 | Hank Fischer | Grand Rapids | ERA | 2.01 |
| Billy Joe Dashner | Topeka | RBI | 108 | Hank Fischer | Grand Rapids | PCT | .682 15–7 |
| Manly Johnston | Lincoln | HR | 23 |
| Billy Joe Dashner | Topeka | HR | 23 |
1961 Illinois–Indiana–Iowa League schedule
| Team standings | W | L | PCT | GB | Attend | Managers |
| Topeka Reds | 79 | 50 | .612 | — | 56,384 | Dave Bristol |
| Cedar Rapids Braves | 73 | 57 | .562 | 6.5 | 69,617 | Jimmy Brown |
| Lincoln Chiefs | 68 | 62 | .523 | 11.5 | 42,866 | George Noga |
| Fox Cities Foxes | 67 | 62 | .519 | 12.0 | 47,552 | Earl Weaver |
| Burlington Bees | 65 | 65 | .500 | 14.5 | 36,798 | Hardy Peterson |
| Des Moines Demons | 37 | 93 | .285 | 42.5 | 33,337 | Chuck Kress |
Playoff: None Scheduled
Player statistics :
| Player | Team | Stat | Tot | Player | Team | Stat | Tot |
| Dick Haines | Des Moines | BA | .355 | Bill Holmes | Cedar Rapids | W | 18 |
| Tommy Harper | Topeka | Runs | 131 | Bob Locker | Lincoln | SO | 215 |
| Paul Snyder | Cedar Rapids | Hits | 153 | Bill Holmes | Cedar Rapids | ERA | 2.21 |
| Miles McWilliams | Topeka | RBI | 102 | Bill Holmes | Cedar Rapids | PCT | .818 18–4 |
| Barry Morgan | Cedar Rapids | HR | 23 |
| Source: |||||||||

## Baseball Hall of Fame alumni

* Luis Aparicio, 1954 Waterloo White Hawks
* Lou Boudreau, 1938 Cedar Rapids Raiders
* Mordecai Brown, 1901 Terre Haute Hottentots; 1919–1920 Terre Haute Browns
* Jim Bunning, 1951 Davenport Tigers
* Red Faber, 1909–1910 Dubuque Dubs
* Warren Giles, 1920–1921 Moline Plowboys
* Hank Greenberg, 1931 Evansville Hubs
* Burleigh Grimes, 1935 Bloomington Bloomers
* Whitey Herzog, 1952 Quincy Gems
* Carl Hubbell, 1927 Decatur Commodores
* Chuck Klein, 1927 Evansville Hubs
* Tony Lazzeri, 1923 Peoria Tractors
* Joe McGinnity, 1922 Danville Veterans
* Red Ruffing, 1923 Danville Veterans
* Warren Spahn, 1941 Evansville Bees
* Earl Weaver, 1960–1961 Fox Cities Foxes
* Billy Williams, 1958 Burlington Bees
* also: Milo Hamilton, 1950–1951 Davenport Tigers Announcer, Ford C. Frick Award
* Tony Kubek, 1955 Quincy Gems, Ford C. Frick Award
* Bob Uecker, 1957, Evansville Braves, Ford C. Frick Award

## Three-I Most Valuable Players

Source:
* 1961 Tommy Harper, Topeka Reds
* 1960 Pete Ward, Fox Cities Foxes
* 1959 Cal Emery Des Moines Demons
* 1958 Frank Howard, Green Bay Bluejays
* 1957 Don Nichols, Peoria Chiefs
* 1956 Don Nottebart, Evansville Braves
* 1955 Johnny Romano, Waterloo White Hawks