Interpreted as:
most strikeouts per 9 innings by a player in MLB relievers 2025| NAME | K/9 | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | J. Sandridge | 27.00 | 2025 |  NYY | 1 | 0 | 0 | 0 | 27.00 | 2 | 0 | 0 | 0 | 0.2 | 1 | 2 | 2 | 1 | 2 | 1 | 0 | 0 | 6 | 0 | 27.00 | 1.00 | 13.50 | 33.3 | 33.3 | 4.50 | 27.00 | 13.50 | ||
| 2 | | J. Quijada | 20.25 | 2025 |  LAA | 2 | 0 | 0 | 0 | 0.00 | 3 | 0 | 0 | 0 | 1.1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 8 | 0 | 13.50 | 1.50 | 0.00 | 37.5 | 25.0 | 2.25 | .333 | 0.00 | 6.75 | |
| 3 |  | R. Sasaki | 18.00 | 2025 |  LAD | 2 | 0 | 0 | 0 | 0.00 | 4 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0.00 | 0.00 | 57.1 | 0.0 | 0.50 | .333 | 0.00 | 4.50 | ||
| 4 | | L. Gilbreath | 18.00 | 2025 |  COL | 1 | 0 | 0 | 0 | 9.00 | 2 | 0 | 0 | 0 | 1.0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 4 | 0 | 0.00 | 9.00 | 50.0 | 0.0 | 1.00 | .000 | 9.00 | 9.00 | ||
| 5 | | N. Hoffman | 18.00 | 2025 |  PHI | 1 | 0 | 0 | 0 | 27.00 | 2 | 0 | 0 | 0 | 1.0 | 3 | 3 | 3 | 0 | 1 | 0 | 1 | 0 | 7 | 1 | 9.00 | 2.00 | 0.00 | 28.6 | 14.3 | 4.00 | .750 | 27.00 | 27.00 | |
| 6 | | D. Nikhazy | 18.00 | 2025 |  CLE | 1 | 0 | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0.00 | 0.00 | 66.7 | 0.0 | 0.00 | .000 | 0.00 | 0.00 | ||
| 7 | | L. Allen | 18.00 | 2025 | CLE | 1 | 1 | 0 | 1.000 | 0 | 0.00 | 2 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 0.00 | 66.7 | 0.0 | 0.00 | .000 | 0.00 | 0.00 | |
| 8 | | G. Holmes | 18.00 | 2025 |  ATL | 1 | 0 | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0.00 | 0.00 | 66.7 | 0.0 | 0.00 | .000 | 0.00 | 0.00 | ||
| 9 | | A. Ottavino | 16.20 | 2025 | NYY | 3 | 0 | 0 | 0 | 0.00 | 3 | 0 | 0 | 0 | 1.2 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 9 | 0 | 21.60 | 0.75 | 0.00 | 33.3 | 44.4 | 2.40 | .000 | 0.00 | 0.00 | |
| 10 | | C. Patrick | 15.75 | 2025 |  MIL | 4 | 0 | 0 | 0 | 4.50 | 7 | 0 | 0 | 0 | 4.0 | 3 | 2 | 2 | 1 | 2 | 0 | 0 | 0 | 17 | 0 | 4.50 | 3.50 | 2.25 | 41.2 | 11.8 | 1.25 | .286 | 4.50 | 6.75 | |
| 11 | | M. Miller | 15.18 | 2025 | TOT | 60 | 1 | 2 | .333 | 0 | 2.63 | 104 | 0 | 0 | 22 | 61.2 | 28 | 18 | 19 | 5 | 28 | 1 | 37 | 2 | 234 | 3 | 4.09 | 3.71 | 0.73 | 44.4 | 12.0 | 0.91 | .240 | 2.77 | 4.09 |
| 12 | | T. Adcock | 15.00 | 2025 |  NYM | 3 | 0 | 0 | 0 | 3.00 | 5 | 0 | 0 | 0 | 3.0 | 2 | 1 | 1 | 1 | 2 | 0 | 1 | 0 | 14 | 0 | 6.00 | 2.50 | 3.00 | 35.7 | 14.3 | 1.33 | .167 | 3.00 | 6.00 | |
| 13 | | C. Povich | 14.54 | 2025 |  BAL | 2 | 1 | 0 | 1.000 | 0 | 3.12 | 14 | 0 | 0 | 0 | 8.2 | 8 | 3 | 3 | 0 | 4 | 0 | 0 | 0 | 37 | 2 | 4.15 | 3.50 | 0.00 | 37.8 | 10.8 | 1.38 | .421 | 3.12 | 8.31 |
| 14 | | J. Lopez | 14.54 | 2025 |  ATH | 4 | 0 | 1 | .000 | 0 | 5.19 | 14 | 0 | 0 | 0 | 8.2 | 10 | 5 | 7 | 3 | 4 | 1 | 1 | 0 | 42 | 0 | 4.15 | 3.50 | 3.12 | 33.3 | 9.5 | 1.62 | .350 | 7.27 | 10.38 |
| 15 | | J. Walker | 14.40 | 2025 |  TOR | 3 | 0 | 0 | 0 | 7.20 | 8 | 0 | 0 | 0 | 5.0 | 8 | 4 | 4 | 0 | 2 | 1 | 1 | 0 | 25 | 0 | 3.60 | 4.00 | 0.00 | 32.0 | 8.0 | 2.00 | .571 | 7.20 | 14.40 | |
| 16 |  | C. Sale | 14.29 | 2025 | ATL | 1 | 1 | 0 | 1.000 | 0 | 1.59 | 9 | 0 | 0 | 0 | 5.2 | 4 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 22 | 0 | 3.18 | 4.50 | 0.00 | 40.9 | 9.1 | 1.06 | .364 | 1.59 | 6.35 |
| 17 | | D. Young | 14.04 | 2025 | NYM | 10 | 0 | 0 | 0 | 4.32 | 13 | 0 | 0 | 0 | 8.1 | 9 | 4 | 5 | 0 | 3 | 1 | 4 | 0 | 37 | 0 | 3.24 | 4.33 | 0.00 | 35.1 | 8.1 | 1.44 | .450 | 5.40 | 9.72 | |
| 18 | | G. Jax | 13.64 | 2025 | TOT | 71 | 1 | 7 | .125 | 0 | 4.36 | 97 | 0 | 0 | 0 | 64.0 | 61 | 31 | 33 | 7 | 20 | 1 | 6 | 3 | 274 | 0 | 2.81 | 4.85 | 0.98 | 35.4 | 7.3 | 1.27 | .362 | 4.64 | 8.58 |
| 19 |  | J. BerrÃos | 13.50 | 2025 | TOR | 1 | 0 | 0 | 0 | 13.50 | 3 | 0 | 0 | 0 | 2.0 | 2 | 3 | 3 | 1 | 2 | 0 | 0 | 0 | 10 | 0 | 9.00 | 1.50 | 4.50 | 30.0 | 20.0 | 2.00 | .250 | 13.50 | 9.00 | |
| 20 | | R. Fitts | 13.50 | 2025 |  BOS | 1 | 1 | 0 | 1.000 | 0 | 6.75 | 6 | 0 | 0 | 0 | 4.0 | 2 | 3 | 3 | 1 | 3 | 1 | 0 | 0 | 18 | 0 | 6.75 | 2.00 | 2.25 | 33.3 | 16.7 | 1.25 | .143 | 6.75 | 4.50 |
| 21 | | J. Rooney | 13.50 | 2025 |  HOU | 1 | 0 | 0 | 0 | 6.75 | 2 | 0 | 0 | 0 | 1.1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 6 | 0 | 6.75 | 2.00 | 6.75 | 33.3 | 16.7 | 1.50 | .000 | 6.75 | 6.75 | |
| 22 | | R. Burr | 13.50 | 2025 | TOR | 2 | 1 | 0 | 1.000 | 0 | 0.00 | 3 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 8 | 0 | 4.50 | 3.00 | 0.00 | 37.5 | 12.5 | 1.00 | .250 | 0.00 | 4.50 |
| 23 | | G. Hartlieb | 13.50 | 2025 | TOT | 4 | 0 | 0 | 0 | 21.60 | 5 | 0 | 0 | 0 | 3.1 | 8 | 8 | 8 | 2 | 6 | 0 | 1 | 0 | 24 | 0 | 16.20 | 0.83 | 5.40 | 20.8 | 25.0 | 4.20 | .545 | 21.60 | 21.60 | |
| 24 | | J. Pintaro | 13.50 | 2025 | NYM | 1 | 0 | 0 | 0 | 27.00 | 1 | 0 | 0 | 0 | 0.2 | 2 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 6 | 0 | 27.00 | 0.50 | 0.00 | 16.7 | 33.3 | 6.00 | .667 | 27.00 | 27.00 | |
| 25 | | A. Walters | 13.50 | 2025 | CLE | 2 | 0 | 0 | 0 | 13.50 | 2 | 0 | 0 | 0 | 1.1 | 2 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 6 | 0 | 0.00 | 6.75 | 33.3 | 0.0 | 1.50 | .333 | 13.50 | 13.50 | ||
StatMuse has game-level data for K/9 going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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