The Pittsburgh Alleghenys allowed their most runs in a game versus the Boston Beaneaters on August 27, 1887, with 28 runs.
Interpreted as:
pittsburgh pirates most runs allowed in a regular-season game| TEAM | R | DATE | TM | OPP | RESULT | 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 |  | Alleghenys | 28 | 8/27/1887 |  PIT | @ |  BSN | L 14-28 | |||||||||||||||||||||||
| 2 | | Alleghenys | 27 | 9/12/1883 | PIT | @ |  CIN | L 5-27 | |||||||||||||||||||||||
| 3 | | Pirates | 25 | 5/20/1896 | PIT | vs |  BKN | L 6-25 | |||||||||||||||||||||||
| 4 | | Pirates | 24 | 7/25/1894 | PIT | @ |  CHI | L 6-24 | |||||||||||||||||||||||
| 5 |  | Pirates | 23 | 7/10/1943 |  PIT | @ |  BKN | L 6-23 | 0.00 | 2 | 0 | 0 | 8.0 | 20 | 0 | 1 | 11 | 0 | 55 | 0 | 2.25 | 12.38 | 0.18 | 1.13 | 3.6 | 20.0 | 3.88 | .463 | 25.88 | 22.50 | |
| 6 | | Pirates | 23 | 7/13/1900 | PIT | vs |  PHI | L 8-23 | |||||||||||||||||||||||
| 7 | | Alleghenys | 23 | 8/7/1890 | PTN | @ | CIN | L 17-23 | |||||||||||||||||||||||
| 8 | | Alleghenys | 23 | 6/14/1883 | PIT | vs | COL | L 10-23 | |||||||||||||||||||||||
| 9 | | Pirates | 22 | 8/14/1894 | PIT | @ |  BSN | L 5-22 | |||||||||||||||||||||||
| 10 | | Pirates | 22 | 6/30/1893 | PIT | vs | BKN | L 16-22 | |||||||||||||||||||||||
| 11 | | Pirates | 21 | 4/23/2022 | PIT | @ | CHC | L 0-21 | 18.00 | 3 | 0 | 0 | 8.0 | 23 | 16 | 1 | 4 | 1 | 0 | 53 | 0 | 3.38 | 4.50 | 0.75 | 1.13 | 5.7 | 7.5 | 3.38 | .500 | 23.63 | 25.88 |
| 12 | | Pirates | 21 | 5/25/1954 | PIT | @ |  NYG | L 4-21 | 22.50 | 1 | 0 | 0 | 8.0 | 22 | 20 | 3 | 9 | 1 | 2 | 54 | 1 | 1.13 | 10.13 | 0.11 | 3.38 | 1.9 | 16.7 | 3.88 | .475 | 23.63 | 24.75 |
| 13 | | Pirates | 21 | 6/24/1950 | PIT | @ | BKN | L 12-21 | 22.50 | 2 | 0 | 0 | 8.0 | 25 | 20 | 2 | 7 | 0 | 0 | 54 | 1 | 2.25 | 7.88 | 0.29 | 2.25 | 3.7 | 13.0 | 4.00 | .535 | 23.63 | 28.13 |
| 14 | | Alleghenys | 21 | 7/27/1883 | PIT | @ |  BAL | L 8-21 | |||||||||||||||||||||||
| 15 | | Alleghenys | 21 | 6/24/1882 | PIT | @ | CIN | L 4-21 | |||||||||||||||||||||||
| 16 | | Pirates | 20 | 5/21/2021 | PIT | @ | ATL | L 1-20 | 22.50 | 9 | 0 | 0 | 8.0 | 20 | 20 | 7 | 5 | 0 | 0 | 49 | 0 | 10.13 | 5.63 | 1.80 | 7.88 | 18.4 | 10.2 | 3.13 | .464 | 22.50 | 22.50 |
| 17 | | Pirates | 20 | 4/22/2010 | PIT | vs |  MIL | L 0-20 | 18.00 | 8 | 0 | 0 | 9.0 | 25 | 18 | 4 | 6 | 0 | 0 | 59 | 0 | 8.00 | 6.00 | 1.33 | 4.00 | 13.6 | 10.2 | 3.44 | .512 | 20.00 | 25.00 |
| 18 | | Pirates | 20 | 6/15/1929 | PIT | vs | NYG | L 15-20 | 0.00 | 6 | 0 | 0 | 14.0 | 28 | 0 | 2 | 6 | 0 | 75 | 0 | 3.86 | 3.86 | 1.00 | 1.29 | 8.0 | 8.0 | 2.43 | .426 | 12.86 | 18.00 | |
| 19 | | Pirates | 20 | 8/5/1901 | PIT | vs |  STL | L 6-20 | 0.00 | 3 | 0 | 0 | 9.0 | 21 | 0 | 0 | 1 | 1 | -9 | 0 | 0 | 3.00 | 1.00 | 3.00 | 0.00 | 2.44 | -4.200 | 20.00 | 21.00 | ||
| 20 | | Pirates | 20 | 7/20/1892 | PIT | @ |  BAL | L 7-20 | |||||||||||||||||||||||
| 21 | | Alleghenys | 20 | 8/13/1890 | PTN | @ | CLN | L 9-20 | |||||||||||||||||||||||
| 22 | | Alleghenys | 20 | 8/1/1890 | PTN | @ | BKN | L 1-20 | |||||||||||||||||||||||
| 23 | | Alleghenys | 20 | 7/21/1890 | PTN | @ | PHN | L 7-20 | |||||||||||||||||||||||
| 24 | | Alleghenys | 20 | 9/26/1883 | PIT | @ | STL | L 3-20 | |||||||||||||||||||||||
| 25 | | Alleghenys | 20 | 9/22/1882 | PIT | vs | LOU | L 6-20 | |||||||||||||||||||||||
Results may be incomplete. StatMuse has complete 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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