Josh Hader has the highest K/9 by a relief pitcher when pitching in 200+ games, with 14.56 per nine innings.
| NAME | K/9 | 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. Hader | 14.56 | 476 | 35 | 31 | .530 | 0 | 2.61 | 842 | 0 | 0 | 231 | 520.1 | 284 | 151 | 165 | 66 | 199 | 24 | 327 | 6 | 2,046 | 19 | 3.44 | 4.23 | 1.14 | 41.2 | 9.7 | 0.93 | .238 | 2.85 | 4.91 |
| 2 |  | E. DÃaz | 14.55 | 527 | 29 | 36 | .446 | 0 | 2.91 | 849 | 0 | 0 | 257 | 525.1 | 365 | 170 | 183 | 55 | 187 | 41 | 401 | 10 | 2,138 | 34 | 3.20 | 4.54 | 0.94 | 39.7 | 8.7 | 1.05 | .308 | 3.14 | 6.25 |
| 3 |  | A. Chapman | 14.52 | 885 | 60 | 49 | .550 | 0 | 2.48 | 1,360 | 0 | 0 | 381 | 843.0 | 487 | 232 | 257 | 54 | 417 | 34 | 581 | 7 | 3,427 | 88 | 4.45 | 3.26 | 0.58 | 39.7 | 12.2 | 1.07 | .277 | 2.74 | 5.20 |
| 4 |  | D. Betances | 14.47 | 373 | 21 | 23 | .477 | 0 | 2.55 | 631 | 0 | 0 | 36 | 392.1 | 239 | 111 | 124 | 26 | 181 | 28 | 86 | 5 | 1,604 | 28 | 4.15 | 3.49 | 0.60 | 39.3 | 11.3 | 1.07 | .289 | 2.84 | 5.48 |
| 5 | | D. Williams | 14.06 | 335 | 34 | 18 | .654 | 0 | 2.63 | 503 | 0 | 0 | 97 | 322.0 | 196 | 94 | 114 | 22 | 152 | 15 | 144 | 5 | 1,320 | 17 | 4.25 | 3.31 | 0.61 | 38.1 | 11.5 | 1.08 | .277 | 3.19 | 5.48 |
| 6 |  | C. Kimbrel | 13.93 | 869 | 56 | 50 | .528 | 0 | 2.65 | 1,300 | 0 | 0 | 440 | 839.2 | 511 | 247 | 276 | 78 | 354 | 41 | 666 | 12 | 3,385 | 72 | 3.79 | 3.67 | 0.84 | 38.4 | 10.5 | 1.03 | .269 | 2.96 | 5.48 |
| 7 | | F. Cruz | 13.19 | 219 | 11 | 16 | .407 | 0 | 4.05 | 316 | 0 | 0 | 3 | 215.2 | 163 | 97 | 103 | 21 | 113 | 8 | 29 | 3 | 920 | 21 | 4.72 | 2.80 | 0.88 | 34.3 | 12.3 | 1.28 | .307 | 4.30 | 6.80 |
| 8 | | A. Miller | 12.93 | 546 | 35 | 28 | .556 | 0 | 2.95 | 724 | 0 | 0 | 63 | 504.0 | 351 | 165 | 183 | 47 | 201 | 46 | 147 | 9 | 2,091 | 25 | 3.59 | 3.60 | 0.84 | 34.6 | 9.6 | 1.10 | .283 | 3.27 | 6.27 |
| 9 |  | A. Muñoz | 12.40 | 293 | 15 | 27 | .357 | 0 | 2.70 | 395 | 0 | 0 | 91 | 286.2 | 192 | 86 | 101 | 21 | 117 | 17 | 146 | 12 | 1,169 | 20 | 3.67 | 3.38 | 0.66 | 33.8 | 10.0 | 1.08 | .276 | 3.17 | 6.03 |
| 10 |  | K. Jansen | 12.38 | 955 | 55 | 43 | .561 | 0 | 2.60 | 1,300 | 0 | 0 | 484 | 945.1 | 620 | 273 | 292 | 92 | 292 | 32 | 717 | 20 | 3,753 | 21 | 2.78 | 4.45 | 0.88 | 34.6 | 7.8 | 0.96 | .259 | 2.78 | 5.90 |
| 11 | | K. Yates | 12.36 | 489 | 30 | 27 | .526 | 0 | 3.37 | 642 | 0 | 0 | 99 | 467.1 | 341 | 175 | 190 | 65 | 188 | 31 | 219 | 13 | 1,946 | 18 | 3.62 | 3.41 | 1.25 | 33.0 | 9.7 | 1.13 | .271 | 3.66 | 6.57 |
| 12 | | C. Marmol | 12.33 | 506 | 18 | 29 | .383 | 0 | 3.25 | 698 | 0 | 0 | 117 | 509.1 | 324 | 184 | 195 | 37 | 340 | 47 | 259 | 20 | 2,207 | 32 | 6.01 | 2.05 | 0.65 | 31.6 | 15.4 | 1.30 | .265 | 3.45 | 5.73 |
| 13 | | K. Giles | 12.26 | 362 | 14 | 18 | .438 | 0 | 2.71 | 484 | 0 | 0 | 115 | 355.1 | 283 | 107 | 121 | 28 | 114 | 5 | 208 | 5 | 1,454 | 24 | 2.89 | 4.25 | 0.71 | 33.3 | 7.8 | 1.12 | .310 | 3.06 | 7.17 |
| 14 | | B. Abreu | 12.19 | 346 | 18 | 15 | .545 | 0 | 2.92 | 481 | 0 | 0 | 21 | 355.0 | 261 | 115 | 127 | 31 | 172 | 25 | 82 | 0 | 1,489 | 24 | 4.36 | 2.80 | 0.79 | 32.3 | 11.6 | 1.22 | .295 | 3.22 | 6.62 |
| 15 | | R. Dibble | 12.17 | 385 | 27 | 25 | .519 | 0 | 2.98 | 645 | 0 | 0 | 89 | 477.0 | 332 | 158 | 169 | 27 | 238 | 12 | 204 | 25 | 1,979 | 36 | 4.49 | 2.71 | 0.51 | 32.6 | 12.0 | 1.19 | .289 | 3.19 | 6.26 |
| 16 | | T. Rosenthal | 12.12 | 373 | 12 | 25 | .324 | 0 | 3.36 | 490 | 0 | 0 | 132 | 364.0 | 304 | 136 | 145 | 19 | 177 | 22 | 207 | 8 | 1,570 | 23 | 4.38 | 2.77 | 0.47 | 31.2 | 11.3 | 1.32 | .331 | 3.59 | 7.52 |
| 17 | | A. Vesia | 12.08 | 333 | 18 | 14 | .563 | 0 | 2.89 | 401 | 0 | 0 | 16 | 298.2 | 193 | 96 | 115 | 34 | 141 | 12 | 49 | 14 | 1,232 | 9 | 4.25 | 2.84 | 1.02 | 32.5 | 11.4 | 1.12 | .247 | 3.47 | 5.82 |
| 18 | | C. Knebel | 12.05 | 308 | 13 | 16 | .448 | 0 | 3.29 | 403 | 0 | 0 | 72 | 301.0 | 231 | 110 | 121 | 34 | 143 | 11 | 137 | 13 | 1,260 | 7 | 4.28 | 2.82 | 1.02 | 32.0 | 11.3 | 1.24 | .294 | 3.62 | 6.91 |
| 19 | | B. Wagner | 11.92 | 853 | 47 | 40 | .540 | 0 | 2.31 | 1,196 | 0 | 0 | 422 | 903.0 | 601 | 232 | 262 | 82 | 300 | 33 | 703 | 26 | 3,600 | 43 | 2.99 | 3.99 | 0.82 | 33.2 | 8.3 | 1.00 | .261 | 2.61 | 5.99 |
| 20 | | B. Lidge | 11.92 | 602 | 26 | 32 | .448 | 0 | 3.55 | 795 | 0 | 0 | 225 | 600.1 | 490 | 237 | 257 | 57 | 285 | 33 | 368 | 41 | 2,576 | 46 | 4.27 | 2.79 | 0.85 | 30.9 | 11.1 | 1.29 | .308 | 3.85 | 7.35 |
| 21 | | D. Robertson | 11.84 | 880 | 68 | 46 | .596 | 0 | 2.93 | 1,175 | 0 | 0 | 179 | 893.1 | 674 | 291 | 315 | 81 | 364 | 25 | 358 | 38 | 3,687 | 57 | 3.67 | 3.23 | 0.82 | 31.9 | 9.9 | 1.16 | .290 | 3.17 | 6.79 |
| 22 | | M. Feliz | 11.82 | 227 | 17 | 8 | .680 | 0 | 5.12 | 328 | 0 | 0 | 1 | 249.2 | 237 | 142 | 151 | 42 | 108 | 7 | 54 | 2 | 1,091 | 18 | 3.89 | 3.04 | 1.51 | 30.1 | 9.9 | 1.38 | .322 | 5.44 | 8.54 |
| 23 | | J. Leclerc | 11.74 | 357 | 12 | 21 | .364 | 0 | 3.35 | 477 | 0 | 0 | 41 | 365.2 | 247 | 136 | 150 | 32 | 203 | 21 | 141 | 8 | 1,546 | 25 | 5.00 | 2.35 | 0.79 | 30.9 | 13.1 | 1.23 | .264 | 3.69 | 6.08 |
| 24 | | L. Hendriks | 11.73 | 446 | 30 | 21 | .588 | 0 | 3.16 | 628 | 0 | 0 | 116 | 482.0 | 408 | 169 | 190 | 49 | 111 | 9 | 218 | 13 | 1,953 | 36 | 2.07 | 5.66 | 0.91 | 32.2 | 5.7 | 1.08 | .311 | 3.55 | 7.62 |
| 25 | | E. Gagne | 11.70 | 354 | 23 | 13 | .639 | 0 | 2.62 | 492 | 0 | 0 | 187 | 378.1 | 264 | 110 | 115 | 33 | 113 | 15 | 269 | 12 | 1,505 | 10 | 2.69 | 4.35 | 0.79 | 32.7 | 7.5 | 1.00 | .271 | 2.74 | 6.28 |
StatMuse has game-level data for games pitched going back to the 1908 season.
Some of the information used here was obtained free of charge from Retrosheet.
More MLB News
Shohei Ohtani has been brilliant on the mound this year, but he's still a long shot for the Cy Young
Burns wins 8th straight decision, Stephenson hits a 3-run homer, and Reds beat Yankees
Schwarber, Harper homer again as Phillies beat Mets 6-2 to win series
Colton Cowser's 4 RBIs, Pete Alonso's 3-run homer help power Orioles to 12-1 win over Dodgers
Neto's go-ahead HR in 9th inning, Guzman's tying shot in 8th help Angels beat A's 9-7
Canzone homers, Gilbert allows 3 hits and Mariners beat Red Sox 3-1
More Brewers Stats
Team Batting Leaders 
HR
13
Bauers
RBI
47
Turang
AVG
.352
Vaughn
Team Pitching Leaders 
W
10
Ashby
K
138
Misiorowski
ERA
1.45
Misiorowski
Team Rankings
HR
68
27th
R
397
3rd
SO
736
1st
ERA
3.45
3rd
Brewers
Cardinals
Cubs
Pirates
Reds
MLB 2026 Batting Leaders
MLB 2026 Pitching Leaders
MLB Fantasy 2026
MLB 2026 Betting
MLB 2026 Standings
| NL East | W | L | PCT | GB |
|---|---|---|---|---|
48 | 28 | .632 | ||
42 | 35 | .545 | 6.5 | |
40 | 38 | .513 | 9.0 | |
40 | 38 | .513 | 9.0 | |
34 | 43 | .442 | 14.5 | |
| NL Central | W | L | PCT | GB |
46 | 29 | .613 | ||
41 | 34 | .547 | 5.0 | |
40 | 37 | .519 | 7.0 | |
39 | 39 | .500 | 8.5 | |
37 | 39 | .487 | 9.5 | |
| NL West | W | L | PCT | GB |
49 | 29 | .628 | ||
39 | 37 | .513 | 9.0 | |
39 | 38 | .506 | 9.5 | |
31 | 46 | .403 | 17.5 | |
30 | 48 | .385 | 19.0 |
Braves
Phillies
Marlins
Nationals
Mets
Dodgers
Padres
Diamondbacks
Giants
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
46 | 30 | .605 | ||
43 | 31 | .581 | 2.0 | |
38 | 39 | .494 | 8.5 | |
37 | 42 | .468 | 10.5 | |
31 | 44 | .413 | 14.5 | |
| AL Central | W | L | PCT | GB |
41 | 37 | .526 | ||
39 | 37 | .513 | 1.0 | |
38 | 41 | .481 | 3.5 | |
33 | 44 | .429 | 7.5 | |
32 | 46 | .410 | 9.0 | |
| AL West | W | L | PCT | GB |
40 | 39 | .506 | ||
38 | 40 | .487 | 1.5 | |
37 | 40 | .481 | 2.0 | |
37 | 42 | .468 | 3.0 | |
32 | 47 | .405 | 8.0 |
Yankees
Rays
Blue Jays
Orioles
Red Sox
Guardians
White Sox
Twins
Tigers
Royals
Mariners
Athletics
Rangers
Astros
Angels