# List of Major League Baseball single-season records

This is a list of single-season records in Major League Baseball.

## Batting records
### Overview (1876–present)

| Records | Player | # | Season |
| Games | Maury Wills | 165 | 1962 |
| Highest batting average | Tetelo Vargas | .471 | 1943 |
| Most singles | Ichiro Suzuki | 225 | 2004 |
| Most doubles | Earl Webb | 67 | 1931 |
| Most triples | Chief Wilson | 36 | 1912 |
| Most home runs | Barry Bonds | 73 | 2001 |
| Most runs batted in | Hack Wilson | 191 | 1930 |
| Most hits | Ichiro Suzuki | 262 | 2004 |
| Most runs scored | Billy Hamilton | 198 | 1894 |
| Highest on-base percentage | Barry Bonds | .609 | 2004 |
| Most stolen bases | Hugh Nicol Rickey Henderson | 138 130 | 1887 1982 |
| Highest slugging percentage | Josh Gibson | .974 | 1937 |
| Highest OPS | Josh Gibson | 1.4744 | 1937 |
| Most walks | Barry Bonds | 232 | 2004 |
| Most strikeouts | Mark Reynolds | 223 | 2009 |
| Most extra base hits | Babe Ruth | 119 | 1921 |
| Most total bases | Babe Ruth | 457 | 1921 |
| Consecutive game hitting streak | Joe DiMaggio | 56 | 1941 |
| Most at-bats | Jimmy Rollins | 716 | 2007 |

### Home runs

| Player | Team | Home runs | Season |
| Barry Bonds | San Francisco Giants | 73 | 2001 |
| Mark McGwire | St. Louis Cardinals | 70 | 1998 |
| Sammy Sosa | Chicago Cubs | 66 | 1998 |
| Mark McGwire | St. Louis Cardinals | 65 | 1999 |
| Sammy Sosa | Chicago Cubs | 64 | 2001 |
| Sammy Sosa | Chicago Cubs | 63 | 1999 |
| Aaron Judge | New York Yankees | 62 | 2022 |
| Roger Maris | New York Yankees | 61 | 1962 |
| Babe Ruth | New York Yankees | 60 | 1927 |
* Most Grand Slams By a Pitcher in One Season: Tony Cloninger, Madison Bumgarner, 2

### Hits

| Player | Team | Hits | Season |
| Ichiro Suzuki | Seattle Mariners | 262 | 2004 |
| George Sisler | St. Louis Browns | 257 | 1920 |
| Bill Terry | New York Giants | 254 | 1930 |
| Lefty O'Doul | Philadelphia Phillies | 254 | 1929 |

### Runs batted in

| Player | Team | RBIs | Season |
| Hack Wilson | Chicago Cubs | 191 | 1930 |
| Lou Gehrig | New York Yankees | 184 | 1931 |
| Hank Greenberg | Detroit Tigers | 183 | 1937 |
| Jimmie Foxx | Boston Red Sox | 175 | 1938 |
| Lou Gehrig | New York Yankees | 175 | 1927 |

### Hitting streak

| Player | Team | Streak | Season |
| Joe DiMaggio | New York Yankees | 56 | 1941 |
| Willie Keeler | Baltimore Orioles | 44 | 1897 |
| Pete Rose | Cincinnati Reds | 44 | 1978 |
| Bill Dahlen | Chicago Colts | 42 | 1894 |
| George Sisler | St. Louis Browns | 41 | 1922 |
| Ty Cobb | Detroit Tigers | 40 | 1911 |

### Runs scored

| Player | Team | Runs | Season |
| Billy Hamilton | Philadelphia Phillies | 198 | 1894 |
| Babe Ruth | New York Yankees | 177 | 1921 |
| Lou Gehrig | New York Yankees | 167 | 1936 |
| Lou Gehrig | New York Yankees | 163 | 1931 |
| Babe Ruth | New York Yankees | 163 | 1928 |
| Chuck Klein | Philadelphia Phillies | 158 | 1930 |

### Doubles

| Player | Team | Doubles | Season |
| Earl Webb | Boston Red Sox | 67 | 1931 |
| George Burns | Cleveland Indians | 64 | 1926 |
| Joe Medwick | St. Louis Cardinals | 64 | 1936 |
| Hank Greenberg | Detroit Tigers | 63 | 1934 |
| Paul Waner | Pittsburgh Pirates | 62 | 1932 |

### Triples

| Player | Team | Triples | Season |
| Chief Wilson | Pittsburgh Pirates | 36 | 1912 |
| Sam Crawford | Detroit Tigers | 26 | 1914 |
| Kiki Cuyler | Pittsburgh Pirates | 26 | 1925 |
| Joe Jackson | Cleveland Naps | 26 | 1912 |

### At bats

| Player | Team | At bats | Season |
| Jimmy Rollins | Philadelphia Phillies | 716 | 2007 |
| Willie Wilson | Kansas City Royals | 705 | 1980 |
| Ichiro Suzuki | Seattle Mariners | 704 | 2004 |
| Juan Samuel | Philadelphia Phillies | 701 | 1984 |
| Dave Cash | Philadelphia Phillies | 699 | 1975 |
| Juan Pierre | Chicago Cubs | 699 | 2006 |

### Stolen bases

| Player | Team | Stolen bases | Season |
| Hugh Nicol | Cincinnati Red Stockings | 138 | 1887 |
| Rickey Henderson | Oakland Athletics | 130 | 1982 |
| Arlie Latham | St. Louis Browns | 129 | 1887 |
| Lou Brock | St. Louis Cardinals | 118 | 1974 |
| Charlie Comiskey | St. Louis Browns | 117 | 1887 |

## Pitching records
### Overview

| Record | Player | # | Season |
| Most wins | Old Hoss Radbourn | 60 | 1884 |
| Most losses | John Coleman | 48 | 1883 |
| Lowest E.R.A. | Eugene Bremer | 0.711 | 1937 |
| Most strikeouts | Matt Kilroy | 513 | 1886 |
| Most shutouts | George Bradley Pete Alexander | 16 | 1876 1916 |
| Most innings pitched | Will White | 680 | 1879 |
| Most complete games | Will White | 75 | 1879 |
| Lowest WHIP | Hilton Smith | .6176 | 1944 |
| Most saves | Francisco Rodríguez | 62 | 2008 |
| Highest win/loss percentage | Roy Face | 94.7% | 1959 |
| Most hits allowed | John Coleman | 772 | 1883 |
| Most earned runs allowed | John Coleman | 291 | 1883 |
| Fastest pitch thrown | Aroldis Chapman | 105.8 mph | 2010 |
| Fastest pitch for strikeout | Ben Joyce | 105.5 mph | 2024 |

#### Live-ball era (1920–present)

(if different from above)
| Record | Player | # | Season |
| Most wins | Jim Bagby, Sr. Lefty Grove Denny McLain | 31 | 1920 1931 1968 |
| Most losses | Paul Derringer | 27 | 1933 |
| Most strikeouts | Nolan Ryan | 383 | 1973 |
| Most shutouts | Bob Gibson | 13 | 1968 |
| Most innings pitched | Wilbur Wood | 376.2 | 1972 |
| Most complete games | Bob Feller | 36 | 1946 |
| Most hits allowed | Wilbur Wood | 381 | 1973 |
| Most earned runs allowed | Bobo Newsom | 186 | 1938 |

### Wins
#### Post 19th Century

| Player | Team | Wins | Season |
| Jack Chesbro | New York Yankees | 41 | 1904 |
| Ed Walsh | Chicago White Sox | 40 | 1908 |
| Christy Mathewson | New York Giants | 37 | 1908 |
| Walter Johnson | Washington Senators | 36 | 1913 |
| Joe McGinnity | New York Giants | 35 | 1904 |

#### Live-ball era (post-1920)

| Player | Team | Wins | Season |
| Jim Bagby, Sr. | Cleveland Indians | 31 | 1920 |
| Lefty Grove | Philadelphia Athletics | 31 | 1931 |
| Denny McLain | Detroit Tigers | 31 | 1968 |
| Dizzy Dean | St. Louis Cardinals | 30 | 1934 |
| Hal Newhouser | Detroit Tigers | 29 | 1944 |
| Dazzy Vance | Brooklyn Dodgers | 28 | 1924 |
| Lefty Grove | Philadelphia Athletics | 28 | 1930 |
| Dizzy Dean | St. Louis Cardinals | 28 | 1935 |
| Robin Roberts | Philadelphia Phillies | 28 | 1952 |

### Earned run average

| Player | Team | ERA | Season |
| Gene Bremer | Cincinnati Tigers | 0.711 | 1937 |
| Satchel Paige | Kansas City Monarchs | 0.719 | 1944 |
| Hilton Smith | Kansas City Monarchs | 0.794 | 1944 |

### Strikeouts

| Player | Team | Strikeouts | Season |
| Nolan Ryan | California Angels | 383 | 1973 |
| Sandy Koufax | Los Angeles Dodgers | 382 | 1965 |
| Randy Johnson | Arizona Diamondbacks | 372 | 2001 |
| Nolan Ryan | California Angels | 367 | 1974 |
| Randy Johnson | Arizona Diamondbacks | 364 | 1999 |

### Shutouts

| Player | Team | Shutouts | Season |
| Pete Alexander | Philadelphia Phillies | 16 | 1916 |
| Bob Gibson | St. Louis Cardinals | 13 | 1968 |
| Jack Coombs | Philadelphia Athletics | 13 | 1910 |
| Pete Alexander | Philadelphia Phillies | 12 | 1915 |

### Saves

| Player | Team | Saves | Season |
| Francisco Rodríguez | Los Angeles Angels | 62 | 2008 |
| Bobby Thigpen | Chicago White Sox | 57 | 1990 |
| Edwin Díaz | Seattle Mariners | 57 | 2018 |
| John Smoltz | Atlanta Braves | 55 | 2002 |
| Éric Gagné | Los Angeles Dodgers | 55 | 2003 |

### Balks

| Player | Team | Balks | Season |
| Dave Stewart | Oakland Athletics | 16 | 1988 |
| John Dopson | Boston Red Sox | 15 | 1989 |
| Bob Welch | Oakland Athletics | 13 | 1988 |
| John Candelaria | New York Yankees | 12 | 1988 |
| Juan Guzmán | Texas Rangers | 12 | 1988 |

### Wild pitches

| Player | Team | Wild pitches | Season |
| Red Ames | New York Giants | 30 | 1905 |
| Tony Cloninger | Atlanta Braves | 27 | 1966 |
| Larry Cheney | Chicago Cubs | 26 | 1914 |
| Juan Guzmán | Toronto Blue Jays | 26 | 1993 |

## Catcher records

* Most runners caught stealing: Jody Davis, 89 (1986)
* Most stolen bases allowed: Mike Piazza, 155 (1996)
* Highest caught-stealing %: Mike LaValliere, 72.73% (1993)
* Most no-hitters caught: 2, Carlos Ruiz (2010) and Wilson Ramos (2015) (List of Major League Baseball no-hitters)
Both of Ruiz's no-hitters were by Roy Halladay; the second was in Game 1 of the National League Division Series, Halladay's first career postseason start. Both of Ramos' no-hitters were by Max Scherzer.
In 1914, Yankees catcher Les Nunamaker threw out three runners in the same inning.

## Team records
### Hits

| Team | Hits | Season |
| Philadelphia Phillies | 1,783 | 1930 |

### Home runs

| Team | Home runs | Season |
| Minnesota Twins | 307 | 2019 |
| Atlanta Braves | 307 | 2023 |
| New York Yankees | 306 | 2019 |
| Houston Astros | 288 | 2019 |
| Los Angeles Dodgers | 279 | 2019 |
| New York Yankees | 267 | 2018 |
| Seattle Mariners | 264 | 1997 |
| Toronto Blue Jays | 262 | 2021 |
| Texas Rangers | 260 | 2005 |
| Toronto Blue Jays | 257 | 2010 |
| Baltimore Orioles | 257 | 1996 |

### Runs batted in

| Team | Runs Batted In | Season |
| New York Yankees | 995 | 1936 |

### Runs scored

| Team | Runs Scored | Season |
| New York Yankees | 1,067 | 1931 |