# Wild Card Series

The Wild Card Series (formerly known as Wild Card Game from 2012 to 2019 and in 2021) are games that serve as the opening round of the Major League Baseball (MLB) postseason. A single wild card game was instituted in 2012. This became a best-of-three playoff wild card series in 2020 as a one-off, and became permanent (albeit with fewer teams playing than in the 2020 series) starting in the 2022 season.
There are two wild card series each, in the American League (AL) and National League (NL). The lowest-seeded division winner and three wild card teams in each league play in a best-of-three series after the end of the regular season. The winners of each league's wild card series advance to face the two-best division winners in that league's Division Series. This expansion of the postseason abolished any regular-season-extending tie-breaker games.

## Format

Under the format adopted in 2022, six teams in each league are assigned seeds for the postseason. In each league, the three division winners are seeded #1–3, per their relative winning percentages. The lowest-seeded division winner is automatically given the No. 3 seed even if one or all other wild-card teams has a better record. Also in each league, the three teams with the best winning percentages among non-division winning teams are wild cards, seeded #4–6, per their relative winning percentages. Any ties are broken using a set of MLB tie-breaking procedures; as such, no tie-breaking games (colloquially known as "Game 163") are contested.
The top two division winners in each league receive first-round byes to the Division Series. The remaining four teams, seeds No. 3 through No. 6, play in two best-of-3 wild card series, with the higher seed hosting all games. These two series are: No. 3 hosting No. 6, and No. 4 hosting No. 5.
In the Division Series, the winner of the No. 4 vs. No. 5 series faces the No. 1 seed, and the winner of the No. 3. vs. No. 6 series faces the No. 2 seed. The bracket structure in each league looks as follows:
| Wild Card Series Best-of-3 | Wild Card Series Best-of-3 | Division Series Best-of-5 | Division Series Best-of-5 |
| | | 1 | Best record in league |
| 4 | Wild Card team #1 | | |
| 5 | Wild Card team #2 | | |
| | | 2 | Second-best division winner |
| 3 | Lowest seeded-division winner | | |
| 6 | Wild Card team #3 | | |

## History

The Wild Card round was initially introduced in 2012 as a single-game playoff between two wild-card teams in each league, with the winner advancing to the Division Series. With the adoption of MLB's new collective bargaining agreement in November 2011, baseball commissioner Bud Selig announced that a new playoff system would begin within the next two years; the change was ultimately put into place in 2012. This format was used through the 2019 season.
For the 2020 postseason, following a shortened 60-game regular season due to the COVID-19 pandemic, MLB held a one-off Wild Card Series with eight teams in each league, thus a total of 16 playoff teams. Division champions were seeded 1–3 by record, the second-place teams seeded 4–6 by record, and the two teams with the next-best records were seeded seventh and eighth. Matchups were contested as best-of-three series rather than individual games. MLB returned to the previous format of one Wild Card Game per league for the 2021 postseason, before it changed to two best-of-three Wild Card series per league the next year.
As of the beginning of the 2024 postseason, 29 of the 30 MLB franchises have reached the Wild Card round of the postseason (either a Wild Card Game or the Wild Card Series). The New York Yankees and the Tampa Bay Rays each have the most appearances with five, and have the most wins during the Wild Card round with three each. The Milwaukee Brewers, the Athletics, the St. Louis Cardinals and the Toronto Blue Jays each have the most losses during the Wild Card round, with three each.

### Analysis

Through the 2021 postseason, Wild Card Game winners have gone on to compile an overall 9–9 record in League Division Series, with Wild Card Game winners going 4–5 in the ALDS and 5–4 in the NLDS. Two Wild Card Game winners have gone on to win the World Series (the 2014 Giants and the 2019 Nationals). The 2014 postseason featured the first series sweeps involving a Wild Card Game winner; both in favor of the AL Wild Card Kansas City Royals, who swept the Los Angeles Angels in the ALDS and the Baltimore Orioles in the ALCS. The Royals then met the San Francisco Giants in the 2014 World Series, the second all-Wild Card fall classic, which the Giants won in seven games. The first all-Wild Card World Series had also involved the Giants, who lost the 2002 World Series to the then-Anaheim Angels in seven games.
In the sixteen games played since the new Wild Card system began in 2012, five have been shutouts. In eight of the eleven others, the losing team scored three or fewer runs. There have only been two games in which the losing team scored more than six runs: the 2017 NL Wild Card Game in which the Arizona Diamondbacks defeated the Colorado Rockies by a score of 11–8; and the 2014 AL Wild Card Game which featured the Kansas City Royals beating the Oakland Athletics 9–8 in 12 innings. The margin of victory has been four runs or more in eight of the sixteen games played. Only three games have been decided by exactly one run: the 2014 Royals-Athletics game, the 2018 Rockies-Cubs game, and the 2019 Nationals-Brewers game.

## Results

Through the 2021 postseason, visiting teams and home teams have each won nine of the 18 games played. There have been five shutouts, each of which has been won by the visiting team, including three consecutive shutouts in the 2014–2016 NL editions. Two of the three extra innings games have been won by the home team. Three games have ended in walk-off victory for the home team, with the 2021 NL edition being the only one in regulation.
Key :
| bold | Wild Card Game winner |
| ↓ | Lost tie-breaker game to reach Wild Card Game (arrow links to game) |
| ↑ | Won tie-breaker game to reach Wild Card Game (arrow links to game) |
| | Reached League Championship Series |
| | Reached World Series |
| | Won World Series |

### American League Wild Card Game

| Year | Visitor | Manager | Score | Host | Manager |
| 2012 | Baltimore Orioles | Buck Showalter | 5–1 | Texas Rangers | Ron Washington |
| 2013 | Tampa Bay Rays↑ | Joe Maddon | 4–0 | Cleveland Indians | Terry Francona |
| 2014 | Oakland Athletics | Bob Melvin | 8–9 (12) | Kansas City Royals | Ned Yost |
| 2015 | Houston Astros | A. J. Hinch | 3–0 | New York Yankees | Joe Girardi |
| 2016 | Baltimore Orioles | Buck Showalter | 2–5 (11) | Toronto Blue Jays | John Gibbons |
| 2017 | Minnesota Twins | Paul Molitor | 4–8 | New York Yankees | Joe Girardi |
| 2018 | Oakland Athletics | Bob Melvin | 2–7 | New York Yankees | Aaron Boone |
| 2019 | Tampa Bay Rays | Kevin Cash | 5–1 | Oakland Athletics | Bob Melvin |
| 2021 | New York Yankees | Aaron Boone | 2–6 | Boston Red Sox | Alex Cora |

### National League Wild Card Game

| Year | Visitor | Manager | Score | Host | Manager |
| 2012 | St. Louis Cardinals | Mike Matheny | 6–3 | Atlanta Braves | Fredi González |
| 2013 | Cincinnati Reds | Dusty Baker | 2–6 | Pittsburgh Pirates | Clint Hurdle |
| 2014 | San Francisco Giants | Bruce Bochy | 8–0 | Pittsburgh Pirates | Clint Hurdle |
| 2015 | Chicago Cubs | Joe Maddon | 4–0 | Pittsburgh Pirates | Clint Hurdle |
| 2016 | San Francisco Giants | Bruce Bochy | 3–0 | New York Mets | Terry Collins |
| 2017 | Colorado Rockies | Bud Black | 8–11 | Arizona Diamondbacks | Torey Lovullo |
| 2018 | Colorado Rockies↓ | Bud Black | 2–1 (13) | Chicago Cubs↓ | Joe Maddon |
| 2019 | Milwaukee Brewers | Craig Counsell | 3–4 | Washington Nationals | Dave Martinez |
| 2021 | St. Louis Cardinals | Mike Shildt | 1–3 | Los Angeles Dodgers | Dave Roberts |

### Wild Card Series

After the shortened 60-game regular season of 2020, the first round of the MLB postseason consisted of four Wild Card Series in each league, each series being a best-of-three hosted by the higher seed. Eight teams from each league participated: three division winners, three division runners-up, and two wild card teams (the two remaining teams with the best records, based on winning percentage). Thus, while each league's Wild Card Series featured a total of eight teams, there were still only two wild card qualifiers per league.
Starting in 2022, a modified version of the Wild Card Series was used. However, only three Wild Cards qualify along with the lowest-seeded division winner.
To date, nearly every Wild Card Series held so far ended in a sweep, with only 4 of the 20 series needing a Game 3. Lower-seeded teams have won eight series out of 12.
Key :
| $^{E1}$ $^{C1}$ $^{W1}$ | Division winners for East, Central, West |
| $^{E2}$ $^{C2}$ $^{W2}$ | Division runners-up for East, Central, West |
| $^{WC}$ | Wild card teams |
| bold | Wild Card Series winner |

#### American League Wild Card Series

| Year | Higher seeded team | Manager | Games | Lower seeded team | Manager |
| 2020 | Tampa Bay Rays$^{E1}$ | Kevin Cash | 2–0 | Toronto Blue Jays$^{WC}$ | Charlie Montoyo |
| 2020 | Oakland Athletics$^{W1}$ | Bob Melvin | 2–1 | Chicago White Sox$^{WC}$ | Rick Renteria |
| 2020 | Minnesota Twins$^{C1}$ | Rocco Baldelli | 0–2 | Houston Astros$^{W2}$ | Dusty Baker |
| 2020 | Cleveland Indians$^{C2}$ | Sandy Alomar Jr. | 0–2 | New York Yankees$^{E2}$ | Aaron Boone |
| 2022 | Cleveland Guardians $^{C1}$ | Terry Francona | 2–0 | Tampa Bay Rays$^{WC}$ | Kevin Cash |
| 2022 | Toronto Blue Jays$^{WC}$ | John Schneider | 0–2 | Seattle Mariners$^{WC}$ | Scott Servais |
| 2023 | Minnesota Twins$^{C1}$ | Rocco Baldelli | 2–0 | Toronto Blue Jays$^{WC}$ | John Schneider |
| 2023 | Tampa Bay Rays$^{WC}$ | Kevin Cash | 0–2 | Texas Rangers$^{WC}$ | Bruce Bochy |
| 2024 | Houston Astros$^{W1}$ | Joe Espada | 0–2 | Detroit Tigers$^{WC}$ | A. J. Hinch |
| 2024 | Baltimore Orioles$^{WC}$ | Brandon Hyde | 0–2 | Kansas City Royals$^{WC}$ | Matt Quatraro |

#### National League Wild Card Series

| Year | Higher seeded team | Manager | Games | Lower seeded team | Manager |
| 2020 | Los Angeles Dodgers$^{W1}$ | Dave Roberts | 2–0 | Milwaukee Brewers$^{WC}$ | Craig Counsell |
| 2020 | Atlanta Braves$^{E1}$ | Brian Snitker | 2–0 | Cincinnati Reds$^{WC}$ | David Bell |
| 2020 | Chicago Cubs$^{C1}$ | David Ross | 0–2 | Miami Marlins$^{E2}$ | Don Mattingly |
| 2020 | San Diego Padres$^{W2}$ | Jayce Tingler | 2–1 | St. Louis Cardinals$^{C2}$ | Mike Shildt |
| 2022 | St. Louis Cardinals $^{C1}$ | Oliver Marmol | 0–2 | Philadelphia Phillies$^{WC}$ | Rob Thomson |
| 2022 | New York Mets$^{WC}$ | Buck Showalter | 1–2 | San Diego Padres$^{WC}$ | Bob Melvin |
| 2023 | Milwaukee Brewers $^{C1}$ | Craig Counsell | 0–2 | Arizona Diamondbacks$^{WC}$ | Torey Lovullo |
| 2023 | Philadelphia Phillies$^{WC}$ | Rob Thomson | 2–0 | Miami Marlins$^{WC}$ | Skip Schumaker |
| 2024 | Milwaukee Brewers$^{C1}$ | Pat Murphy | 1–2 | New York Mets$^{WC}$ | Carlos Mendoza |
| 2024 | San Diego Padres$^{WC}$ | Mike Shildt | 2–0 | Atlanta Braves$^{WC}$ | Brian Snitker |

## Appearances by team

In the sortable tables below, teams are ordered first by number of wins, then by number of appearances, and finally by year of first appearance. These records reflect series outcomes of the 2020 Wild Card Series, not individual games. In the "Season(s)" column, bold years indicate winning appearances.

### American League

| Apps | Team | Wins | Losses | Win % | Season(s) |
| 5 | Tampa Bay Rays | 3 | 2 | .600 | 2013, 2019, 2020, 2022, 2023 |
| 5 | New York Yankees | 3 | 2 | .600 | 2015, 2017, 2018, 2020, 2021 |
| 3 | Houston Astros | 2 | 1 | .667 | 2015, 2020, 2024 |
| 2 | Kansas City Royals | 2 | 0 | 1.000 | 2014, 2024 |
| 4 | Athletics | 1 | 3 | .250 | 2014, 2018, 2019, 2020 |
| 4 | Toronto Blue Jays | 1 | 3 | .333 | 2016, 2020, 2022, 2023 |
| 3 | Cleveland Guardians | 1 | 2 | .333 | 2013, 2020, 2022 |
| 3 | Minnesota Twins | 1 | 2 | .333 | 2017, 2020, 2023 |
| 3 | Baltimore Orioles | 1 | 2 | .333 | 2012, 2016, 2024 |
| 2 | Texas Rangers | 1 | 1 | .500 | 2012, 2023 |
| 1 | Boston Red Sox | 1 | 0 | 1.000 | 2021 |
| 1 | Seattle Mariners | 1 | 0 | 1.000 | 2022 |
| 1 | Detroit Tigers | 1 | 0 | 1.000 | 2024 |
| 1 | Chicago White Sox | 0 | 1 | .000 | 2020 |

### National League

| Apps | Team | Wins | Losses | Win % | Season(s) |
| 3 | San Diego Padres | 3 | 0 | 1.000 | 2020, 2022, 2024 |
| 2 | San Francisco Giants | 2 | 0 | 1.000 | 2014, 2016 |
| 2 | Arizona Diamondbacks | 2 | 0 | 1.000 | 2017, 2023 |
| 2 | Los Angeles Dodgers | 2 | 0 | 1.000 | 2020, 2021 |
| 2 | Philadelphia Phillies | 2 | 0 | 1.000 | 2022, 2023 |
| 4 | St. Louis Cardinals | 1 | 3 | .250 | 2012, 2020, 2021, 2022 |
| 3 | Pittsburgh Pirates | 1 | 2 | .333 | 2013, 2014, 2015 |
| 3 | Chicago Cubs | 1 | 2 | .333 | 2015, 2018, 2020 |
| 3 | Atlanta Braves | 1 | 2 | .333 | 2012, 2020, 2024 |
| 3 | New York Mets | 1 | 2 | .333 | 2016, 2022, 2024 |
| 2 | Colorado Rockies | 1 | 1 | .500 | 2017, 2018 |
| 2 | Miami Marlins | 1 | 1 | .500 | 2020, 2023 |
| 1 | Washington Nationals | 1 | 0 | 1.000 | 2019 |
| 2 | Cincinnati Reds | 0 | 2 | .000 | 2013, 2020 |
| 3 | New York Mets | 1 | 2 | .333 | 2016, 2022, 2024 |
| 4 | Milwaukee Brewers | 0 | 4 | .000 | 2019, 2020, 2023, 2024 |

## Game results by team

Updated through the 2024 postseason. These records reflect individual game results of the 2020 Wild Card Series.
| Team | League | Appearances | Appearances | Individual games | Individual games |
| Team | League | Games | Series | Win–loss record | Winning pct. |
| Arizona Diamondbacks | NL | 1 | 1 | 3–0 | 1.000 |
| Atlanta Braves | NL | 1 | 2 | 2–3 | .400 |
| Baltimore Orioles | AL | 2 | 1 | 1–3 | .250 |
| Boston Red Sox | AL | 1 | 0 | 1–0 | 1.000 |
| Cincinnati Reds | NL | 1 | 1 | 0–3 | .000 |
| Chicago Cubs | NL | 2 | 1 | 1–3 | .250 |
| Chicago White Sox | AL | 0 | 1 | 1–2 | .333 |
| Cleveland Guardians | AL | 1 | 2 | 2–3 | .400 |
| Colorado Rockies | NL | 2 | 0 | 1–1 | .500 |
| Detroit Tigers | AL | 0 | 1 | 2–0 | 1.000 |
| Houston Astros | AL | 1 | 2 | 3–2 | .600 |
| Kansas City Royals | AL | 1 | 1 | 3–0 | 1.000 |
| Los Angeles Dodgers | NL | 1 | 1 | 3–0 | 1.000 |
| Miami Marlins | NL | 0 | 2 | 2–2 | .500 |
| Milwaukee Brewers | NL | 1 | 3 | 1–7 | .125 |
| Minnesota Twins | AL | 1 | 2 | 2–3 | .400 |
| New York Mets | NL | 1 | 2 | 3–4 | .429 |
| New York Yankees | AL | 4 | 1 | 4–2 | .667 |
| Athletics | AL | 3 | 1 | 2–4 | .333 |
| Philadelphia Phillies | NL | 0 | 2 | 4–0 | 1.000 |
| Pittsburgh Pirates | NL | 3 | 0 | 1–2 | .333 |
| San Diego Padres | NL | 0 | 3 | 6–2 | .750 |
| San Francisco Giants | NL | 2 | 0 | 2–0 | 1.000 |
| Seattle Mariners | AL | 0 | 1 | 2–0 | 1.000 |
| St. Louis Cardinals | NL | 2 | 2 | 2–5 | .286 |
| Tampa Bay Rays | AL | 2 | 3 | 4–4 | .500 |
| Texas Rangers | AL | 1 | 1 | 2–1 | .667 |
| Toronto Blue Jays | AL | 1 | 2 | 1–4 | .200 |
| Washington Nationals | NL | 1 | 0 | 1–0 | 1.000 |
The following current MLB teams have not yet appeared in a Wild Card playoff:
    American League: Los Angeles Angels

## Records
### Single team

* Most runs scored: 12, New York Yankees vs. Cleveland Indians, Game 1 of the 2020 ALWC
* Most hits: 17, Arizona Diamondbacks vs. Colorado Rockies, 2017 NLWC

### Both teams

* Most runs scored: 20, St. Louis Cardinals (9) vs. San Diego Padres (11), Game 1 of the 2020 NLWC
* Most hits: 30, Colorado Rockies (13) vs. Arizona Diamondbacks (17), 2017 NLWC

### Other

* Largest run differential: 9, New York Yankees (12) vs. Cleveland Indians (3), Game 1 of the 2020 ALWC
* Longest game, by time: 297 minutes (4:57), Tampa Bay Rays vs. Cleveland Guardians, Game 2 of the 2022 ALWCS
* Longest game, by innings: 15, Tampa Bay Rays vs. Cleveland Guardians, Game 2 of the 2022 ALWCS