50 pitchers are tied for the fewest losses in losses in a season, with 1 game in 2025. The first three are Brooks Raley, John King and Cody Laweryson.
| NAME | L | SO | SEASON | TM | W | L% | G | W% | GS | ERA | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | B. Raley | 1 | 0 | 2025 |  NYM | 0 | 1.000 | 1 | .000 | 0 | 13.50 | 0 | 0 | 0 | 0.2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 | 0.00 | 0.0 | 0.0 | 1.50 | .333 | 13.50 | 13.50 | |
| 2 | | J. King | 1 | 2 | 2025 |  STL | 0 | 1.000 | 1 | .000 | 0 | 5.40 | 0 | 0 | 0 | 1.2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 7 | 0 | 10.80 | 0.00 | 5.40 | 28.6 | 0.0 | 1.20 | .250 | 5.40 | 10.80 | |
| 3 | | C. Laweryson | 1 | 0 | 2025 |  MIN | 0 | 1.000 | 1 | .000 | 0 | 0.00 | 0 | 0 | 0 | 0.2 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0.00 | 0.00 | 0.00 | 0.0 | 0.0 | 0.00 | .000 | 13.50 | 0.00 | |
| 4 | | B. Basso | 1 | 0 | 2025 |  ATH | 0 | 1.000 | 1 | .000 | 1 | 6.75 | 0 | 0 | 0 | 1.1 | 3 | 1 | 1 | 0 | 2 | 0 | 0 | 1 | 9 | 0 | 0.00 | 13.50 | 0.00 | 0.00 | 0.0 | 22.2 | 3.75 | .429 | 6.75 | 20.25 |
| 5 | | J. Oviedo | 1 | 3 | 2025 |  PIT | 0 | 1.000 | 1 | .000 | 1 | 3.60 | 0 | 0 | 0 | 5.0 | 3 | 2 | 2 | 1 | 3 | 0 | 0 | 0 | 19 | 0 | 5.40 | 5.40 | 1.00 | 1.80 | 15.8 | 15.8 | 1.20 | .167 | 3.60 | 5.40 |
| 6 | | J. Corniell | 1 | 1 | 2025 |  TEX | 0 | 1.000 | 1 | .000 | 0 | 16.20 | 0 | 0 | 0 | 1.2 | 3 | 3 | 4 | 1 | 1 | 0 | 1 | 0 | 9 | 0 | 5.40 | 5.40 | 1.00 | 5.40 | 11.1 | 11.1 | 2.40 | .333 | 21.60 | 16.20 |
| 7 | | L. Avila | 1 | 0 | 2025 |  KCR | 0 | 1.000 | 1 | .000 | 0 | 27.00 | 0 | 0 | 0 | 0.1 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0.00 | 0.00 | 0.00 | 0.0 | 0.0 | 6.00 | .667 | 27.00 | 54.00 | |
| 8 | | P. Messick | 1 | 7 | 2025 |  CLE | 0 | 1.000 | 1 | .000 | 1 | 7.20 | 0 | 0 | 0 | 5.0 | 6 | 4 | 4 | 3 | 1 | 0 | 0 | 0 | 23 | 0 | 12.60 | 1.80 | 7.00 | 5.40 | 30.4 | 4.3 | 1.40 | .250 | 7.20 | 10.80 |
| 9 | | T. Wells | 1 | 4 | 2025 |  BAL | 0 | 1.000 | 1 | .000 | 1 | 6.75 | 0 | 0 | 0 | 4.0 | 7 | 3 | 3 | 1 | 1 | 0 | 0 | 0 | 19 | 0 | 9.00 | 2.25 | 4.00 | 2.25 | 21.1 | 5.3 | 2.00 | .462 | 6.75 | 15.75 |
| 10 | | R. O'Brien | 1 | 0 | 2025 | STL | 0 | 1.000 | 1 | .000 | 0 | 9.00 | 0 | 0 | 0 | 1.0 | 2 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 6 | 0 | 0.00 | 9.00 | 0.00 | 0.00 | 0.0 | 16.7 | 3.00 | .400 | 9.00 | 18.00 |
| 11 | | B. Zimmermann | 1 | 1 | 2025 |  MIL | 0 | 1.000 | 1 | .000 | 1 | 7.50 | 0 | 0 | 0 | 6.0 | 7 | 5 | 6 | 2 | 2 | 0 | 0 | 0 | 28 | 0 | 1.50 | 3.00 | 0.50 | 3.00 | 3.6 | 7.1 | 1.50 | .217 | 9.00 | 10.50 |
| 12 | | K. Strowd | 1 | 3 | 2025 | BAL | 0 | 1.000 | 1 | .000 | 0 | 9.00 | 0 | 0 | 0 | 1.0 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 27.00 | 9.00 | 3.00 | 0.00 | 75.0 | 25.0 | 1.00 | 18.00 | 0.00 | |
| 13 | | J. Scholtens | 1 | 3 | 2025 |  TBR | 0 | 1.000 | 1 | .000 | 0 | 3.00 | 0 | 0 | 0 | 3.0 | 5 | 1 | 3 | 0 | 1 | 0 | 1 | 0 | 16 | 0 | 9.00 | 3.00 | 3.00 | 0.00 | 18.8 | 6.3 | 2.00 | .417 | 9.00 | 15.00 |
| 14 | | J. Peguero | 1 | 1 | 2025 |  SFG | 0 | 1.000 | 1 | .000 | 0 | 16.20 | 0 | 0 | 0 | 1.2 | 5 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 10 | 0 | 5.40 | 0.00 | 10.80 | 10.0 | 0.0 | 3.00 | .429 | 16.20 | 27.00 | |
| 15 | | A. Alvarez | 1 | 4 | 2025 |  WSH | 0 | 1.000 | 1 | .000 | 1 | 10.80 | 0 | 0 | 0 | 3.1 | 7 | 4 | 6 | 0 | 1 | 1 | 0 | 0 | 18 | 0 | 10.80 | 2.70 | 4.00 | 0.00 | 22.2 | 5.6 | 2.40 | .583 | 16.20 | 18.90 |
| 16 | | J. Hill | 1 | 0 | 2025 |  COL | 0 | 1.000 | 1 | .000 | 0 | 9.00 | 0 | 0 | 0 | 1.0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 6 | 0 | 0.00 | 9.00 | 0.00 | 0.00 | 0.0 | 16.7 | 2.00 | .250 | 9.00 | 9.00 |
| 17 | | M. Thompson | 1 | 1 | 2025 | WSH | 0 | 1.000 | 1 | .000 | 0 | 108.00 | 0 | 0 | 0 | 0.1 | 3 | 4 | 5 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 27.00 | 27.00 | 1.00 | 0.00 | 20.0 | 20.0 | 12.00 | 1.000 | 135.00 | 81.00 |
| 18 | | M. Gage | 1 | 0 | 2025 | SFG | 0 | 1.000 | 1 | .000 | 0 | 9.00 | 0 | 0 | 0 | 1.0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 0.00 | 9.00 | 0.00 | 0.00 | 0.0 | 20.0 | 2.00 | .250 | 9.00 | 9.00 |
| 19 | | G. Wolfram | 1 | 1 | 2025 | BAL | 0 | 1.000 | 1 | .000 | 0 | 18.00 | 0 | 0 | 0 | 1.0 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 9.00 | 0.00 | 0.00 | 16.7 | 0.0 | 3.00 | .600 | 18.00 | 27.00 | |
| 20 | | L. Curvelo | 1 | 0 | 2025 | TEX | 0 | 1.000 | 1 | .000 | 0 | 0 | 0 | 0 | 0.0 | 1 | 2 | 3 | 1 | 1 | 0 | 1 | 1 | 2 | 0 | 0.00 | 0.0 | 50.0 | ||||||||
| 21 | | H. Waldrep | 1 | 4 | 2025 |  ATL | 0 | 1.000 | 1 | .000 | 1 | 15.43 | 0 | 0 | 0 | 4.2 | 8 | 8 | 8 | 1 | 2 | 1 | 0 | 0 | 24 | 0 | 7.71 | 3.86 | 2.00 | 1.93 | 16.7 | 8.3 | 2.14 | .438 | 15.43 | 15.43 |
| 22 | | S. Peralta | 1 | 1 | 2025 |  LAA | 0 | 1.000 | 1 | .000 | 0 | 6.75 | 0 | 0 | 0 | 1.1 | 3 | 1 | 3 | 0 | 3 | 0 | 1 | 3 | 10 | 0 | 6.75 | 20.25 | 0.33 | 0.00 | 10.0 | 30.0 | 4.50 | .500 | 20.25 | 20.25 |
| 23 |  | C. Kimbrel | 1 | 1 | 2025 |  HOU | 0 | 1.000 | 1 | .000 | 0 | 0.00 | 0 | 0 | 0 | 0.1 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 27.00 | 0.00 | 0.00 | 33.3 | 0.0 | 6.00 | 1.000 | 27.00 | 54.00 | |
| 24 | | D. Moreta | 1 | 0 | 2025 | PIT | 0 | 1.000 | 1 | .000 | 0 | 0 | 0 | 0 | 0.0 | 2 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 3 | 0 | 0.00 | 0.0 | 33.3 | 1.000 | |||||||
| 25 | | G. Graceffo | 1 | 0 | 2025 | STL | 0 | 1.000 | 1 | .000 | 0 | 18.00 | 0 | 0 | 0 | 1.0 | 2 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 0.00 | 9.00 | 0.00 | 0.00 | 0.0 | 20.0 | 3.00 | .500 | 18.00 | 18.00 |
StatMuse has game-level data for pitcher losses and strikeouts going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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