49 pitchers are tied for losing the most games in a game, with 1 game. The first three are Jordan Weems and David Festa today and Devin Williams yesterday.
Interpreted as:
What is the largest loss by a player in a regular-season game in MLB history?| NAME | L | DATE | TM | OPP | DEC | W | L% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | J. Weems | 1 | 7/3/2025 |  HOU | @ |  COL | L | 0 | 1.000 | 0 | 9.00 | 0 | 0 | 0 | 0 | 2.0 | 5 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 9 | 0 |
| 2 | | D. Festa | 1 | 7/3/2025 |  MIN | @ |  MIA | L | 0 | 1.000 | 1 | 6.00 | 7 | 0 | 0 | 0 | 6.0 | 5 | 4 | 4 | 1 | 1 | 0 | 0 | 0 | 23 | 0 |
| 3 | | D. Williams | 1 | 7/2/2025 |  NYY | @ |  TOR | L | 0 | 1.000 | 0 | 18.00 | 1 | 0 | 0 | 0 | 1.0 | 1 | 2 | 2 | 0 | 2 | 0 | 1 | 1 | 6 | 1 |
| 4 | | T. Kahnle | 1 | 7/2/2025 |  DET | @ |  WSH | L | 0 | 1.000 | 0 | 0 | 0 | 0 | 0 | 0.0 | 4 | 5 | 5 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | |
| 5 | | J. Junk | 1 | 7/2/2025 | MIA | vs | MIN | L | 0 | 1.000 | 1 | 3.00 | 7 | 0 | 0 | 0 | 6.0 | 6 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 23 | 1 |
| 6 |  | S. Gray | 1 | 7/2/2025 |  STL | @ |  PIT | L | 0 | 1.000 | 1 | 5.68 | 6 | 0 | 0 | 0 | 6.1 | 5 | 4 | 4 | 0 | 1 | 0 | 0 | 0 | 25 | 0 |
| 7 | | A. Chivilli | 1 | 7/2/2025 | COL | vs | HOU | L | 0 | 1.000 | 0 | 27.00 | 1 | 0 | 0 | 0 | 0.2 | 1 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 4 | 0 |
| 8 | | R. Garrett | 1 | 7/2/2025 |  NYM | vs |  MIL | L | 0 | 1.000 | 0 | 54.00 | 0 | 0 | 0 | 0 | 0.2 | 3 | 4 | 4 | 1 | 1 | 0 | 0 | 0 | 6 | 0 |
| 9 | | M. Abel | 1 | 7/2/2025 |  PHI | vs |  SDP | L | 0 | 1.000 | 1 | 27.00 | 3 | 0 | 0 | 0 | 1.2 | 2 | 5 | 5 | 0 | 5 | 0 | 0 | 0 | 12 | 0 |
| 10 | | M. Spence | 1 | 7/2/2025 |  ATH | @ |  TBR | L | 0 | 1.000 | 1 | 7.20 | 5 | 0 | 0 | 0 | 5.0 | 7 | 4 | 4 | 3 | 0 | 0 | 0 | 0 | 21 | 0 |
| 11 | | T. Williams | 1 | 7/2/2025 | WSH | vs | DET | L | 0 | 1.000 | 1 | 21.00 | 4 | 0 | 0 | 0 | 3.0 | 9 | 7 | 7 | 2 | 1 | 0 | 0 | 0 | 19 | 0 |
| 12 |  | D. Cease | 1 | 7/2/2025 | SDP | @ | PHI | L | 0 | 1.000 | 1 | 6.00 | 4 | 0 | 0 | 0 | 6.0 | 8 | 4 | 4 | 2 | 0 | 0 | 0 | 0 | 26 | 0 |
| 13 | | J. Misiorowski | 1 | 7/2/2025 | MIL | @ | NYM | L | 0 | 1.000 | 1 | 12.27 | 2 | 0 | 0 | 0 | 3.2 | 5 | 5 | 5 | 2 | 3 | 0 | 0 | 0 | 19 | 0 |
| 14 | | T. Bibee | 1 | 7/2/2025 |  CLE | @ |  CHC | L | 0 | 1.000 | 1 | 11.25 | 5 | 0 | 0 | 0 | 4.0 | 6 | 5 | 5 | 0 | 4 | 1 | 0 | 0 | 22 | 1 |
| 15 | | S. Miller | 1 | 7/2/2025 |  AZ | vs |  SFG | L | 0 | 1.000 | 0 | 0.00 | 0 | 0 | 0 | 0 | 1.0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 3 | 0 |
| 16 | | T. Sugano | 1 | 7/2/2025 |  BAL | @ |  TEX | L | 0 | 1.000 | 1 | 11.57 | 5 | 0 | 0 | 0 | 4.2 | 10 | 6 | 6 | 2 | 1 | 0 | 0 | 0 | 24 | 1 |
| 17 | | R. Zeferjahn | 1 | 7/2/2025 |  LAA | @ |  ATL | L | 0 | 1.000 | 0 | 0 | 0 | 0 | 0 | 0.0 | 4 | 5 | 5 | 2 | 2 | 0 | 0 | 0 | 6 | 0 | |
| 18 | | G. Taylor | 1 | 7/2/2025 |  CWS | @ |  LAD | L | 0 | 1.000 | 0 | 20.25 | 2 | 0 | 0 | 0 | 1.1 | 1 | 3 | 3 | 0 | 2 | 0 | 0 | 0 | 7 | 0 |
| 19 | | A. Zerpa | 1 | 7/2/2025 |  KCR | @ |  SEA | L | 0 | 1.000 | 0 | 27.00 | 0 | 0 | 0 | 0 | 0.2 | 1 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 0 |
| 20 | | G. Weissert | 1 | 7/2/2025 |  BOS | vs |  CIN | L | 0 | 1.000 | 0 | 27.00 | 0 | 0 | 0 | 0 | 1.0 | 4 | 3 | 5 | 1 | 1 | 0 | 0 | 0 | 9 | 0 |
| 21 | | E. Hancock | 1 | 7/1/2025 | SEA | vs | KCR | L | 0 | 1.000 | 1 | 7.50 | 1 | 0 | 0 | 0 | 6.0 | 7 | 5 | 5 | 0 | 3 | 1 | 0 | 0 | 29 | 0 |
| 22 | | M. Montgomery | 1 | 7/1/2025 | TBR | vs | ATH | L | 0 | 1.000 | 0 | 0.00 | 0 | 0 | 0 | 0 | 1.0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 3 | 0 |
| 23 | | J. Ryan | 1 | 7/1/2025 | MIN | @ | MIA | L | 0 | 1.000 | 1 | 1.29 | 4 | 0 | 0 | 0 | 7.0 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 26 | 0 |
| 24 | | H. Birdsong | 1 | 7/1/2025 | SFG | @ | AZ | L | 0 | 1.000 | 1 | 6.75 | 6 | 0 | 0 | 0 | 4.0 | 3 | 3 | 4 | 1 | 4 | 0 | 0 | 0 | 19 | 0 |
| 25 | | P. Maton | 1 | 7/1/2025 | STL | @ | PIT | L | 0 | 1.000 | 0 | 9.00 | 1 | 0 | 0 | 0 | 1.0 | 3 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 6 | 0 |
Results may be incomplete. StatMuse has complete game-level data for pitcher losses going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
