The Boston Red Sox and the Cincinnati Reds are tied for the most games pitched with 23+ runs allowed in a season, with 2 games.
Interpreted as:
most games with 23 or more runs allowed by a team in a season| TEAM | G | R | SEASON | W% | W | L | ERA | SO | SHO | SV | IP | H | ER | HR | BB | HBP | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Red Sox | 2 | 51 | 1923 | .000 | 0 | 2 | 0.00 | 8 | 0 | 0 | 17.0 | 54 | 0 | 2 | 20 | 1 | 123 | 0 | 4.24 | 10.59 | 0.40 | 1.06 | 6.5 | 16.3 | 4.35 | .565 | 27.00 | 28.59 | |
| 2 |  | Reds | 2 | 50 | 1901 | .000 | 0 | 2 | 0.00 | 3 | 0 | 0 | 18.0 | 57 | 0 | 3 | 4 | 0 | 0 | 0 | 1.50 | 2.00 | 0.75 | 1.50 | 3.39 | -5.400 | 25.00 | 28.50 | |||
| 3 |  | Orioles | 1 | 24 | 2025 | .000 | 0 | 1 | 24.00 | 6 | 0 | 0 | 9.0 | 25 | 24 | 3 | 11 | 2 | 0 | 64 | 0 | 6.00 | 11.00 | 0.55 | 3.00 | 9.4 | 17.2 | 4.00 | .524 | 24.00 | 25.00 |
| 4 |  | Rockies | 1 | 25 | 2023 | .000 | 0 | 1 | 25.00 | 3 | 0 | 0 | 9.0 | 28 | 25 | 5 | 6 | 1 | 0 | 59 | 2 | 3.00 | 6.00 | 0.50 | 5.00 | 5.1 | 10.2 | 3.78 | .523 | 25.00 | 28.00 |
| 5 | | Red Sox | 1 | 28 | 2022 | .000 | 0 | 1 | 27.00 | 9 | 0 | 0 | 9.0 | 29 | 27 | 5 | 5 | 1 | 0 | 63 | 2 | 9.00 | 5.00 | 1.80 | 5.00 | 14.3 | 7.9 | 3.78 | .558 | 28.00 | 29.00 |
| 6 |  | Nationals | 1 | 24 | 2021 | .000 | 0 | 1 | 21.00 | 7 | 0 | 0 | 9.0 | 22 | 21 | 5 | 9 | 0 | 0 | 60 | 0 | 7.00 | 9.00 | 0.78 | 5.00 | 11.7 | 15.0 | 3.44 | .436 | 24.00 | 22.00 |
| 7 |  | Marlins | 1 | 29 | 2020 | .000 | 0 | 1 | 30.38 | 9 | 0 | 0 | 8.0 | 23 | 27 | 7 | 9 | 1 | 0 | 58 | 0 | 10.13 | 10.13 | 1.00 | 7.88 | 15.5 | 15.5 | 4.00 | .500 | 32.63 | 25.88 |
| 8 | | Rockies | 1 | 23 | 2020 | .000 | 0 | 1 | 23.00 | 6 | 0 | 0 | 9.0 | 27 | 23 | 4 | 5 | 1 | 0 | 59 | 1 | 6.00 | 5.00 | 1.20 | 4.00 | 10.2 | 8.5 | 3.56 | .535 | 23.00 | 27.00 |
| 9 | | Orioles | 1 | 23 | 2019 | .000 | 0 | 1 | 23.00 | 4 | 0 | 0 | 9.0 | 25 | 23 | 6 | 2 | 0 | 0 | 52 | 1 | 4.00 | 2.00 | 2.00 | 6.00 | 7.7 | 3.8 | 3.00 | .475 | 23.00 | 25.00 |
| 10 |  | Phillies | 1 | 24 | 2018 | .000 | 0 | 1 | 13.00 | 5 | 0 | 0 | 9.0 | 25 | 13 | 3 | 7 | 1 | 1 | 61 | 1 | 5.00 | 7.00 | 0.71 | 3.00 | 8.2 | 11.5 | 3.56 | .489 | 24.00 | 25.00 |
| 11 |  | Mets | 1 | 25 | 2018 | .000 | 0 | 1 | 28.13 | 6 | 0 | 0 | 8.0 | 26 | 25 | 5 | 8 | 1 | 1 | 59 | 0 | 6.75 | 9.00 | 0.75 | 5.63 | 10.2 | 13.6 | 4.25 | .538 | 28.13 | 29.25 |
| 12 | | Mets | 1 | 23 | 2017 | .000 | 0 | 1 | 24.75 | 6 | 0 | 0 | 8.0 | 23 | 22 | 7 | 6 | 0 | 3 | 54 | 3 | 6.75 | 6.75 | 1.00 | 7.88 | 11.1 | 11.1 | 3.63 | .457 | 25.88 | 25.88 |
| 13 |  | Orioles | 1 | 30 | 2007 | .000 | 0 | 1 | 30.00 | 11 | 0 | 0 | 9.0 | 29 | 30 | 6 | 8 | 0 | 0 | 65 | 1 | 11.00 | 8.00 | 1.38 | 6.00 | 16.9 | 12.3 | 4.11 | .575 | 30.00 | 29.00 |
| 14 |  | Tigers | 1 | 26 | 2004 | .000 | 0 | 1 | 24.00 | 6 | 0 | 0 | 9.0 | 26 | 24 | 1 | 8 | 0 | 0 | 62 | 1 | 6.00 | 8.00 | 0.75 | 1.00 | 9.7 | 12.9 | 3.78 | .532 | 26.00 | 26.00 |
| 15 |  | Marlins | 1 | 25 | 2003 | .000 | 0 | 1 | 28.13 | 7 | 0 | 0 | 8.0 | 28 | 25 | 3 | 7 | 1 | 0 | 57 | 0 | 7.88 | 7.88 | 1.00 | 3.38 | 12.3 | 12.3 | 4.38 | .641 | 28.13 | 31.50 |
| 16 |  | Indians | 1 | 23 | 2002 | .000 | 0 | 1 | 24.75 | 4 | 0 | 0 | 8.0 | 25 | 22 | 3 | 7 | 0 | 1 | 57 | 2 | 4.50 | 7.88 | 0.57 | 3.38 | 7.0 | 12.3 | 4.00 | .512 | 25.88 | 28.13 |
| 17 |  | Rangers | 1 | 23 | 2000 | .000 | 0 | 1 | 25.88 | 10 | 0 | 0 | 8.0 | 24 | 23 | 4 | 10 | 0 | 0 | 58 | 1 | 11.25 | 11.25 | 1.00 | 4.50 | 17.2 | 17.2 | 4.25 | .588 | 25.88 | 27.00 |
| 18 |  | Blue Jays | 1 | 23 | 2000 | .000 | 0 | 1 | 11.25 | 5 | 0 | 0 | 8.0 | 23 | 10 | 3 | 5 | 1 | 0 | 54 | 0 | 5.63 | 5.63 | 1.00 | 3.38 | 9.3 | 9.3 | 3.50 | .500 | 25.88 | 25.88 |
| 19 | | Rockies | 1 | 24 | 1999 | .000 | 0 | 1 | 22.00 | 8 | 0 | 0 | 9.0 | 28 | 22 | 6 | 9 | 0 | 1 | 64 | 0 | 8.00 | 9.00 | 0.89 | 6.00 | 12.5 | 14.1 | 4.11 | .537 | 24.00 | 28.00 |
| 20 | | Tigers | 1 | 24 | 1996 | .000 | 0 | 1 | 21.00 | 5 | 0 | 0 | 9.0 | 19 | 21 | 3 | 12 | 1 | 1 | 60 | 0 | 5.00 | 12.00 | 0.42 | 3.00 | 8.3 | 20.0 | 3.44 | .410 | 24.00 | 19.00 |
| 21 | | Orioles | 1 | 26 | 1996 | .000 | 0 | 1 | 29.25 | 2 | 0 | 0 | 8.0 | 19 | 26 | 5 | 13 | 1 | 0 | 55 | 1 | 2.25 | 14.62 | 0.15 | 5.63 | 3.6 | 23.6 | 4.00 | .412 | 29.25 | 21.38 |
| 22 | | Rockies | 1 | 26 | 1995 | .000 | 0 | 1 | 26.00 | 8 | 0 | 0 | 9.0 | 27 | 26 | 3 | 6 | 0 | 0 | 60 | 0 | 8.00 | 6.00 | 1.33 | 3.00 | 13.3 | 10.0 | 3.67 | .558 | 26.00 | 27.00 |
| 23 |  | Braves | 1 | 23 | 1990 | .000 | 0 | 1 | 21.00 | 9 | 0 | 0 | 9.0 | 27 | 21 | 3 | 1 | 1 | 0 | 57 | 0 | 9.00 | 1.00 | 9.00 | 3.00 | 15.8 | 1.8 | 3.11 | .558 | 23.00 | 27.00 |
| 24 |  | Cubs | 1 | 23 | 1987 | .000 | 0 | 1 | 23.00 | 8 | 0 | 0 | 9.0 | 21 | 23 | 3 | 8 | 0 | 1 | 56 | 3 | 8.00 | 8.00 | 1.00 | 3.00 | 14.3 | 14.3 | 3.22 | .486 | 23.00 | 21.00 |
| 25 | | Indians | 1 | 24 | 1986 | .000 | 0 | 1 | 22.00 | 2 | 0 | 0 | 9.0 | 24 | 22 | 3 | 9 | 1 | 0 | 61 | 0 | 2.00 | 9.00 | 0.22 | 3.00 | 3.3 | 14.8 | 3.67 | .457 | 24.00 | 24.00 |
StatMuse has team, game-level data for runs allowed going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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KCR 
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