Roy Patterson has allowed the most runs in a game with 9.0+ innings pitched, with 21 runs versus the Brewers on May 5, 1901.
Interpreted as:
most runs allowed by a player in a regular-season game with 9.0 or more ip| NAME | R | IP | DATE | TM | OPP | DEC | GS | ERA | SO | CG | SHO | SV | H | ER | HR | BB | HBP | GF | IBB | TBF | WP | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | R. Patterson | 21 | 9.0 | 5/5/1901 |  CWS | @ |  MIL | L | 1 | 14.00 | 2 | 1 | 0 | 0 | 25 | 14 | 1 | 2 | 0 | 0 | 57 | 0 | |
| 2 |  | C. Falkenberg | 18 | 9.0 | 8/16/1910 |  CLE | vs |  PHA | L | 1 | 5 | 1 | 0 | 0 | 23 | 0 | 2 | 0 | 0 | 50 | 1 | |||
| 3 |  | J. Harper | 17 | 9.0 | 6/30/1902 |  SLA | vs |  CLE | L | 1 | 13.00 | 4 | 1 | 0 | 0 | 13 | 13 | 3 | 9 | 0 | 0 | 50 | 0 | |
| 4 | | P. Dowling | 17 | 9.0 | 8/12/1901 | CLE | vs | CWS | L | 1 | 13.00 | 1 | 1 | 0 | 0 | 18 | 13 | 0 | 5 | 2 | 0 | 50 | 0 | |
| 5 |  | B. Phillips | 16 | 9.0 | 9/24/1901 |  CIN | vs |  BKN | L | 1 | 14.00 | 3 | 1 | 0 | 0 | 21 | 14 | 2 | 0 | 1 | 0 | 51 | 0 | |
| 6 |  | B. Bernhard | 16 | 9.0 | 8/2/1901 | PHA | vs |  BSA | L | 1 | 6.00 | 1 | 1 | 0 | 0 | 22 | 6 | 0 | 2 | 0 | 0 | 53 | 2 | |
| 7 |  | G. Smith | 15 | 9.0 | 7/7/1921 |  PHN | vs |  SLN | L | 1 | 4.00 | 2 | 1 | 0 | 0 | 20 | 4 | 0 | 2 | 1 | 0 | 49 | 0 | |
| 8 |  | I. Davis | 15 | 9.0 | 10/7/1915 |  BSN | vs |  NYG | L | 1 | 11.00 | 0 | 1 | 0 | 0 | 24 | 11 | 0 | 0 | 0 | 0 | 52 | 0 | |
| 9 | | B. Haas | 15 | 9.0 | 6/23/1915 | PHA | vs |  NYY | L | 1 | 8.00 | 4 | 1 | 0 | 0 | 13 | 8 | 0 | 16 | 0 | 0 | 53 | 3 | |
| 10 | | C. Fraser | 15 | 9.0 | 7/12/1905 |  BSN | vs | CIN | L | 1 | 8 | 1 | 0 | 0 | 15 | 0 | 5 | 0 | 0 | 47 | 1 | |||
| 11 | | C. Fraser | 15 | 9.0 | 5/30/1905 | BSN | vs | PHN | L | 1 | 5 | 1 | 0 | 0 | 12 | 0 | 7 | 1 | 0 | 51 | 0 | |||
| 12 |  | C. Young | 15 | 9.0 | 7/29/1903 | BSA | vs | NYH | L | 1 | 8.00 | 4 | 1 | 0 | 0 | 18 | 8 | 0 | 1 | 0 | 0 | 50 | 0 | |
| 13 |  | N. Garvin | 15 | 10.0 | 7/28/1903 | BKN | vs | PHN | L | 1 | 6 | 1 | 0 | 0 | 17 | 0 | 0 | 1 | 0 | 50 | 0 | |||
| 14 |  | J. Katoll | 15 | 9.0 | 9/12/1902 |  BAL | vs |  WSH | L | 1 | 15.00 | 0 | 1 | 0 | 0 | 23 | 15 | 0 | 1 | 0 | 0 | 49 | 0 | |
| 15 | | H. Howell | 15 | 9.0 | 7/25/1902 | BAL | vs | CWS | L | 1 | 4.00 | 0 | 1 | 0 | 0 | 19 | 4 | 0 | 1 | 0 | 0 | 47 | 0 | |
| 16 |  | J. Taylor | 15 | 9.0 | 9/22/1901 |  CHO | vs |  PIT | L | 1 | 6.00 | 5 | 1 | 0 | 0 | 22 | 6 | 0 | 4 | 0 | 0 | 53 | 1 | |
| 17 |  | A. Maul | 15 | 9.0 | 9/5/1901 | NYG | vs | PIT | L | 1 | 15.00 | 3 | 1 | 0 | 0 | 22 | 15 | 1 | 5 | 0 | 0 | 52 | 0 | |
| 18 |  | B. Carrick | 15 | 9.0 | 6/7/1901 | WSH | vs | CWS | L | 1 | 9.00 | 0 | 1 | 0 | 0 | 18 | 9 | 1 | 3 | 0 | 0 | 49 | 0 | |
| 19 | | E. Rommel | 14 | 17.0 | 7/10/1932 | PHA | @ |  CLE | W | 0 | 6.88 | 7 | 0 | 0 | 0 | 29 | 13 | 0 | 9 | 0 | 1 | 87 | 2 | |
| 20 |  | L. Stoner | 14 | 9.0 | 6/30/1924 |  DET | vs |  CWS | L | 1 | 10.00 | 2 | 1 | 0 | 0 | 17 | 10 | 1 | 7 | 0 | 0 | 50 | 0 | |
| 21 | | D. Henry | 14 | 9.0 | 7/22/1923 |  BKN | vs | BSN | L | 1 | 8.00 | 2 | 1 | 0 | 0 | 17 | 8 | 0 | 4 | 1 | 0 | 50 | 1 | |
| 22 | | M. Watson | 14 | 9.0 | 7/27/1918 | PHN | vs | CIN | L | 1 | 12.00 | 3 | 1 | 0 | 0 | 20 | 12 | 0 | 5 | 0 | 0 | 50 | 0 | |
| 23 | | O. Hess | 14 | 9.0 | 5/3/1912 | BSN | vs | BKN | L | 1 | 8.00 | 0 | 1 | 0 | 0 | 14 | 8 | 0 | 7 | 0 | 0 | 49 | 0 | |
| 24 | | T. Pittinger | 14 | 9.0 | 8/12/1904 | BSN | vs | PIT | L | 1 | 5 | 1 | 0 | 0 | 14 | 0 | 7 | 0 | 0 | 48 | 0 | |||
| 25 | | W. Piatt | 14 | 9.0 | 6/17/1903 | BSN | vs | BKN | L | 1 | 4 | 1 | 0 | 0 | 18 | 1 | 2 | 0 | 0 | 46 | 0 | |||
Results may be incomplete. StatMuse has complete game-level data for innings pitched and 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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