Josh Hader has struck out the most batters by an active relief pitcher in a season, with 143 strikeouts in 2018.
| NAME | SO | SEASON | TM | G | W | L | 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 |  | J. Hader | 143 | 2018 | 55 | 6 | 1 | .857 | 0 | 2.43 | 0 | 0 | 12 | 81.1 | 36 | 22 | 23 | 9 | 30 | 1 | 14 | 0 | 306 | 0 | 15.82 | 3.32 | 4.77 | 1.00 | 46.7 | 9.8 | 0.81 | .220 | 2.55 | 3.98 | |
| 2 | | J. Hader | 138 | 2019 | 61 | 3 | 5 | .375 | 0 | 2.62 | 0 | 0 | 37 | 75.2 | 41 | 22 | 24 | 15 | 20 | 4 | 46 | 2 | 289 | 0 | 16.41 | 2.38 | 6.90 | 1.78 | 47.8 | 6.9 | 0.81 | .232 | 2.85 | 4.88 | |
| 3 |  | C. Kimbrel | 127 | 2011 | 79 | 4 | 3 | .571 | 0 | 2.10 | 0 | 0 | 46 | 77.0 | 48 | 18 | 19 | 3 | 32 | 1 | 64 | 1 | 306 | 4 | 14.84 | 3.74 | 3.97 | 0.35 | 41.5 | 10.5 | 1.04 | .315 | 2.22 | 5.61 | |
| 4 |  | C. Kimbrel | 126 | 2017 | 67 | 5 | 0 | 1.000 | 0 | 1.43 | 0 | 0 | 35 | 69.0 | 33 | 11 | 11 | 6 | 14 | 4 | 51 | 0 | 254 | 5 | 16.43 | 1.83 | 9.00 | 0.78 | 49.6 | 5.5 | 0.68 | .260 | 1.43 | 4.30 | |
| 5 |  | E. DÃaz | 124 | 2018 | 73 | 0 | 4 | .000 | 0 | 1.96 | 0 | 0 | 57 | 73.1 | 41 | 16 | 17 | 5 | 17 | 6 | 65 | 0 | 280 | 3 | 15.22 | 2.09 | 7.29 | 0.61 | 44.3 | 6.1 | 0.79 | .281 | 2.09 | 5.03 | |
| 6 |  | A. Chapman | 122 | 2012 | 68 | 5 | 5 | .500 | 0 | 1.51 | 0 | 0 | 38 | 71.2 | 35 | 12 | 13 | 4 | 23 | 4 | 52 | 0 | 276 | 4 | 15.32 | 2.89 | 5.30 | 0.50 | 44.2 | 8.3 | 0.81 | .252 | 1.63 | 4.40 | |
| 7 |  | E. DÃaz | 118 | 2022 | 61 | 3 | 1 | .750 | 0 | 1.31 | 0 | 0 | 32 | 62.0 | 34 | 9 | 9 | 3 | 18 | 2 | 49 | 1 | 235 | 2 | 17.13 | 2.61 | 6.56 | 0.44 | 50.2 | 7.7 | 0.84 | .330 | 1.31 | 4.94 | |
| 8 | | A. Chapman | 116 | 2015 | 65 | 4 | 4 | .500 | 0 | 1.63 | 0 | 0 | 33 | 66.1 | 43 | 12 | 13 | 3 | 33 | 5 | 54 | 1 | 278 | 7 | 15.74 | 4.48 | 3.52 | 0.41 | 41.7 | 11.9 | 1.15 | .331 | 1.76 | 5.83 | |
| 9 | | C. Kimbrel | 116 | 2012 | 63 | 3 | 1 | .750 | 0 | 1.01 | 0 | 0 | 42 | 62.2 | 27 | 7 | 7 | 3 | 14 | 2 | 56 | 0 | 231 | 5 | 16.66 | 2.01 | 8.29 | 0.43 | 50.2 | 6.1 | 0.65 | .250 | 1.01 | 3.88 | |
| 10 | | A. Chapman | 112 | 2013 | 68 | 4 | 5 | .444 | 0 | 2.54 | 0 | 0 | 38 | 63.2 | 37 | 18 | 18 | 7 | 29 | 3 | 55 | 0 | 258 | 6 | 15.83 | 4.10 | 3.86 | 0.99 | 43.4 | 11.2 | 1.04 | .280 | 2.54 | 5.23 | |
| 11 |  | K. Jansen | 111 | 2013 | 75 | 4 | 3 | .571 | 0 | 1.88 | 0 | 0 | 28 | 76.2 | 48 | 16 | 16 | 6 | 18 | 3 | 45 | 1 | 292 | 2 | 13.03 | 2.11 | 6.17 | 0.70 | 38.0 | 6.2 | 0.86 | .273 | 1.88 | 5.63 | |
| 12 |  | F. Bautista | 110 | 2023 | 56 | 8 | 2 | .800 | 0 | 1.48 | 0 | 0 | 33 | 61.0 | 30 | 10 | 14 | 4 | 26 | 2 | 46 | 0 | 237 | 7 | 16.23 | 3.84 | 4.23 | 0.59 | 46.4 | 11.0 | 0.92 | .274 | 2.07 | 4.43 | |
| 13 | | K. Jansen | 109 | 2017 | 65 | 5 | 0 | 1.000 | 0 | 1.32 | 0 | 0 | 41 | 68.1 | 44 | 10 | 11 | 5 | 7 | 2 | 57 | 0 | 258 | 2 | 14.36 | 0.92 | 15.57 | 0.66 | 42.2 | 2.7 | 0.75 | .289 | 1.45 | 5.80 | |
| 14 | | J. Estrada | 108 | 2025 | 77 | 4 | 5 | .444 | 0 | 3.45 | 0 | 0 | 3 | 73.0 | 58 | 28 | 31 | 12 | 27 | 3 | 7 | 2 | 304 | 3 | 13.32 | 3.33 | 4.00 | 1.48 | 35.5 | 8.9 | 1.16 | .299 | 3.82 | 7.15 | |
| 15 | | M. Brash | 107 | 2023 | 78 | 9 | 4 | .692 | 0 | 3.06 | 0 | 0 | 4 | 70.2 | 65 | 24 | 26 | 3 | 29 | 6 | 7 | 0 | 308 | 11 | 13.63 | 3.69 | 3.69 | 0.38 | 34.7 | 9.4 | 1.33 | .380 | 3.31 | 8.28 | |
| 16 | | R. Yarbrough | 106 | 2018 | 32 | 14 | 4 | .778 | 0 | 3.72 | 0 | 0 | 0 | 118.2 | 110 | 49 | 52 | 15 | 42 | 6 | 3 | 5 | 505 | 0 | 8.04 | 3.19 | 2.52 | 1.14 | 21.0 | 8.3 | 1.28 | .283 | 3.94 | 8.34 | |
| 17 | | A. Chapman | 106 | 2014 | 54 | 0 | 3 | .000 | 0 | 2.00 | 0 | 0 | 36 | 54.0 | 21 | 12 | 12 | 1 | 24 | 2 | 44 | 0 | 202 | 4 | 17.67 | 4.00 | 4.42 | 0.17 | 52.5 | 11.9 | 0.83 | .290 | 2.00 | 3.50 | |
| 18 | | B. Abreu | 105 | 2025 | 70 | 3 | 4 | .429 | 0 | 2.28 | 0 | 0 | 7 | 71.0 | 51 | 18 | 18 | 4 | 31 | 4 | 19 | 0 | 296 | 4 | 13.31 | 3.93 | 3.39 | 0.51 | 35.5 | 10.5 | 1.15 | .309 | 2.28 | 6.46 | |
| 19 |  | J. Hader | 105 | 2024 | 71 | 8 | 8 | .500 | 0 | 3.80 | 0 | 0 | 34 | 71.0 | 43 | 30 | 33 | 12 | 25 | 1 | 62 | 0 | 278 | 4 | 13.31 | 3.17 | 4.20 | 1.52 | 37.8 | 9.0 | 0.96 | .230 | 4.18 | 5.45 | |
| 20 |  | M. Miller | 104 | 2025 | TOT | 60 | 1 | 2 | .333 | 0 | 2.63 | 0 | 0 | 22 | 61.2 | 28 | 18 | 19 | 5 | 28 | 1 | 37 | 2 | 234 | 3 | 15.18 | 4.09 | 3.71 | 0.73 | 44.4 | 12.0 | 0.91 | .240 | 2.77 | 4.09 |
| 21 | | C. Smith | 104 | 2025 | 76 | 8 | 5 | .615 | 0 | 2.93 | 0 | 0 | 16 | 73.2 | 55 | 24 | 31 | 4 | 19 | 4 | 30 | 3 | 300 | 3 | 12.71 | 2.32 | 5.47 | 0.49 | 34.7 | 6.3 | 1.00 | .302 | 3.79 | 6.72 | |
| 22 |  | M. Miller | 104 | 2024 | 55 | 2 | 2 | .500 | 0 | 2.49 | 0 | 0 | 28 | 65.0 | 36 | 18 | 23 | 6 | 21 | 1 | 44 | 3 | 249 | 2 | 14.40 | 2.91 | 4.95 | 0.83 | 41.8 | 8.4 | 0.88 | .256 | 3.18 | 4.98 | |
| 23 | | T. Scott | 104 | 2023 | 74 | 9 | 5 | .643 | 0 | 2.31 | 0 | 0 | 12 | 78.0 | 53 | 20 | 22 | 3 | 24 | 4 | 26 | 3 | 307 | 1 | 12.00 | 2.77 | 4.33 | 0.35 | 33.9 | 7.8 | 0.99 | .291 | 2.54 | 6.12 | |
| 24 | | P. Sewald | 104 | 2021 | 62 | 10 | 3 | .769 | 0 | 3.06 | 0 | 0 | 11 | 64.2 | 42 | 22 | 24 | 10 | 24 | 0 | 18 | 5 | 264 | 2 | 14.47 | 3.34 | 4.33 | 1.39 | 39.4 | 9.1 | 1.02 | .254 | 3.34 | 5.85 | |
| 25 |  | S. Lugo | 104 | 2019 | 61 | 7 | 4 | .636 | 0 | 2.70 | 0 | 0 | 6 | 80.0 | 56 | 24 | 28 | 8 | 16 | 5 | 14 | 4 | 314 | 2 | 11.70 | 1.80 | 6.50 | 0.90 | 33.1 | 5.1 | 0.90 | .265 | 3.15 | 6.30 | |
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MIAStatMuse has game-level data for strikeouts going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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Team Batting Leaders 
HR
8
Bauers
RBI
33
Contreras
AVG
.313
Contreras
Team Pitching Leaders 
W
8
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K
100
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ERA
1.57
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Team Rankings
HR
37
30th
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257
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506
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ERA
3.19
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MLB 2026 Batting Leaders
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MLB 2026 Standings
| NL East | W | L | PCT | GB |
|---|---|---|---|---|
37 | 18 | .673 | ||
29 | 27 | .518 | 8.5 | |
28 | 27 | .509 | 9.0 | |
26 | 30 | .464 | 11.5 | |
22 | 33 | .400 | 15.0 | |
| NL Central | W | L | PCT | GB |
32 | 20 | .615 | ||
29 | 24 | .547 | 3.5 | |
29 | 25 | .537 | 4.0 | |
29 | 26 | .527 | 4.5 | |
29 | 26 | .527 | 4.5 | |
| NL West | W | L | PCT | GB |
35 | 20 | .636 | ||
31 | 23 | .574 | 3.5 | |
30 | 24 | .556 | 4.5 | |
22 | 33 | .400 | 13.0 | |
20 | 36 | .357 | 15.5 |
Nationals
Phillies
Diamondbacks
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
34 | 18 | .654 | ||
33 | 22 | .600 | 2.5 | |
26 | 29 | .473 | 9.5 | |
25 | 30 | .455 | 10.5 | |
22 | 31 | .415 | 12.5 | |
| AL Central | W | L | PCT | GB |
32 | 25 | .561 | ||
27 | 27 | .500 | 3.5 | |
27 | 28 | .491 | 4.0 | |
22 | 33 | .400 | 9.0 | |
21 | 34 | .382 | 10.0 | |
| AL West | W | L | PCT | GB |
27 | 28 | .491 | ||
27 | 29 | .482 | 0.5 | |
25 | 29 | .463 | 1.5 | |
24 | 32 | .429 | 3.5 | |
21 | 34 | .382 | 6.0 |
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