Kohei Arihara allowed the most runs in a game in 2022, with 11 runs versus the Blue Jays on September 10, 2022.
Interpreted as:
most runs given up in one regular-season game by single pitcher 2022| NAME | R | DATE | TM | OPP | DEC | GS | ERA | SO | CG | SHO | SV | IP | H | ER | HR | BB | HBP | GF | IBB | TBF | WP | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | K. Arihara | 11 | 9/10/2022 |  TEX | vs |  TOR | L | 1 | 33.00 | 1 | 0 | 0 | 0 | 3.0 | 12 | 11 | 2 | 5 | 0 | 0 | 0 | 26 | 0 |
| 2 |  | M. Mikolas | 10 | 8/9/2022 |  STL | @ |  COL | L | 1 | 33.75 | 2 | 0 | 0 | 0 | 2.2 | 14 | 10 | 1 | 0 | 0 | 0 | 0 | 22 | 0 |
| 3 |  | J. Ryan | 10 | 7/29/2022 |  MIN | @ |  SDP | L | 1 | 19.29 | 7 | 0 | 0 | 0 | 4.2 | 8 | 10 | 5 | 2 | 0 | 0 | 0 | 24 | 0 |
| 4 |  | J. Ureña | 10 | 7/28/2022 | COL | vs |  LAD | L | 1 | 21.00 | 2 | 0 | 0 | 0 | 3.0 | 8 | 7 | 0 | 3 | 0 | 0 | 0 | 22 | 1 |
| 5 |  | P. Blackburn | 10 | 7/24/2022 |  OAK | vs | TEX | L | 1 | 20.77 | 5 | 0 | 0 | 0 | 4.1 | 10 | 10 | 2 | 2 | 2 | 0 | 0 | 26 | 0 |
| 6 |  | T. Hatch | 10 | 7/2/2022 | TOR | vs |  TBR | L | 1 | 19.29 | 4 | 0 | 0 | 0 | 4.2 | 12 | 10 | 3 | 2 | 1 | 0 | 0 | 26 | 0 |
| 7 |  | J. Eickhoff | 10 | 6/22/2022 |  PIT | vs |  CHC | L | 1 | 20.77 | 4 | 0 | 0 | 0 | 4.1 | 10 | 10 | 2 | 1 | 3 | 0 | 0 | 27 | 0 |
| 8 |  | E. Rodríguez | 10 | 6/3/2022 |  DET | @ |  NYY | L | 1 | 20.77 | 4 | 0 | 0 | 0 | 4.1 | 11 | 10 | 4 | 2 | 0 | 0 | 0 | 24 | 0 |
| 9 |  | D. Keuchel | 10 | 4/20/2022 |  CWS | @ |  CLE | L | 1 | 63.00 | 0 | 0 | 0 | 0 | 1.0 | 10 | 7 | 1 | 1 | 0 | 0 | 0 | 17 | 1 |
| 10 |  | D. Martin | 9 | 10/5/2022 | CWS | vs | MIN | L | 1 | 48.60 | 1 | 0 | 0 | 0 | 1.2 | 7 | 9 | 2 | 2 | 0 | 0 | 0 | 14 | 0 |
| 11 |  | E. Fedde | 9 | 10/5/2022 |  WSH | @ |  NYM | L | 1 | 34.71 | 1 | 0 | 0 | 0 | 2.1 | 9 | 9 | 2 | 2 | 0 | 0 | 0 | 18 | 0 |
| 12 |  | L. Patiño | 9 | 9/11/2022 | TBR | @ | NYY | L | 1 | 60.75 | 0 | 0 | 0 | 0 | 1.1 | 5 | 9 | 3 | 4 | 0 | 0 | 0 | 13 | 0 |
| 13 | | G. Márquez | 9 | 9/9/2022 | COL | vs |  ARI | 1 | 20.25 | 2 | 0 | 0 | 0 | 4.0 | 7 | 9 | 2 | 3 | 1 | 0 | 0 | 22 | 0 | |
| 14 | | C. Irvin | 9 | 9/6/2022 | OAK | vs |  ATL | 1 | 17.36 | 4 | 0 | 0 | 0 | 4.2 | 9 | 9 | 1 | 4 | 0 | 0 | 0 | 25 | 0 | |
| 15 | | J. Ureña | 9 | 8/24/2022 | COL | vs | TEX | L | 1 | 60.75 | 1 | 0 | 0 | 0 | 1.1 | 9 | 9 | 0 | 3 | 0 | 0 | 0 | 16 | 0 |
| 16 |  | K. Crawford | 9 | 8/19/2022 |  BOS | @ |  BAL | L | 1 | 22.09 | 2 | 0 | 0 | 0 | 3.2 | 11 | 9 | 3 | 0 | 0 | 0 | 0 | 21 | 0 |
| 17 | | C. Kuhl | 9 | 8/3/2022 | COL | @ | SDP | L | 1 | 16.20 | 4 | 0 | 0 | 0 | 5.0 | 8 | 9 | 3 | 3 | 1 | 0 | 0 | 26 | 0 |
| 18 |  | S. Manaea | 9 | 7/25/2022 | SDP | @ | DET | L | 1 | 10.80 | 4 | 0 | 0 | 0 | 3.1 | 8 | 4 | 2 | 1 | 0 | 0 | 0 | 20 | 0 |
| 19 |  | N. Eovaldi | 9 | 7/22/2022 | BOS | vs | TOR | L | 1 | 30.38 | 3 | 0 | 0 | 0 | 2.2 | 8 | 9 | 1 | 2 | 0 | 0 | 0 | 18 | 0 |
| 20 |  | L. Weaver | 9 | 6/18/2022 | ARI | vs | MIN | L | 1 | 22.09 | 5 | 0 | 0 | 0 | 3.2 | 10 | 9 | 1 | 1 | 0 | 0 | 0 | 22 | 0 |
| 21 |  | P. Corbin | 9 | 6/16/2022 | WSH | vs |  PHI | L | 1 | 5.40 | 2 | 0 | 0 | 0 | 3.1 | 8 | 2 | 2 | 1 | 0 | 0 | 0 | 21 | 0 |
| 22 |  | M. Stroman | 9 | 6/3/2022 | CHC | vs | STL | L | 1 | 20.25 | 7 | 0 | 0 | 0 | 4.0 | 10 | 9 | 3 | 1 | 0 | 0 | 0 | 22 | 0 |
| 23 | | A. Gomber | 9 | 6/2/2022 | COL | vs | ATL | L | 1 | 16.20 | 5 | 0 | 0 | 0 | 5.0 | 10 | 9 | 2 | 2 | 0 | 0 | 0 | 27 | 1 |
| 24 |  | T. Szapucki | 9 | 5/25/2022 | NYM | @ |  SFG | L | 1 | 60.75 | 2 | 0 | 0 | 0 | 1.1 | 7 | 9 | 4 | 3 | 0 | 0 | 0 | 13 | 0 |
| 25 | | N. Eovaldi | 9 | 5/17/2022 | BOS | vs |  HOU | L | 1 | 32.40 | 0 | 0 | 0 | 0 | 1.2 | 8 | 6 | 5 | 0 | 0 | 0 | 0 | 14 | 0 |
Some of the information used here was obtained free of charge from Retrosheet.
Mariners 
Angels 
MIL 
