Aroldis Chapman has the highest career K/9 by a relief pitcher when pitching at least 700 innings, with 14.45 per nine innings.
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| NAME | K/9 | IP | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | A. Chapman | 14.45 | 873.0 | 916 | 63 | 52 | .548 | 0 | 2.48 | 1,402 | 0 | 0 | 402 | 510 | 241 | 268 | 57 | 431 | 34 | 607 | 7 | 3,554 | 90 | 4.44 | 3.25 | 0.59 | 39.4 | 12.1 | 1.08 | .278 | 2.76 | 5.26 |
| 2 |  | C. Kimbrel | 13.71 | 867.2 | 897 | 57 | 53 | .518 | 0 | 2.69 | 1,322 | 0 | 0 | 441 | 532 | 259 | 290 | 79 | 368 | 43 | 674 | 13 | 3,502 | 74 | 3.82 | 3.59 | 0.82 | 37.7 | 10.5 | 1.04 | .268 | 3.01 | 5.52 |
| 3 |  | K. Jansen | 12.30 | 972.1 | 984 | 58 | 46 | .558 | 0 | 2.60 | 1,329 | 0 | 0 | 498 | 634 | 281 | 302 | 95 | 305 | 33 | 739 | 21 | 3,860 | 22 | 2.82 | 4.36 | 0.88 | 34.4 | 7.9 | 0.97 | .257 | 2.80 | 5.87 |
| 4 |  | B. Wagner | 11.92 | 903.0 | 853 | 47 | 40 | .540 | 0 | 2.31 | 1,196 | 0 | 0 | 422 | 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 |
| 5 | | D. Robertson | 11.84 | 893.1 | 880 | 68 | 46 | .596 | 0 | 2.93 | 1,175 | 0 | 0 | 179 | 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 |
| 6 | | O. Dotel | 11.31 | 760.0 | 724 | 50 | 41 | .549 | 0 | 3.32 | 955 | 0 | 0 | 109 | 576 | 280 | 306 | 84 | 313 | 31 | 305 | 36 | 3,172 | 40 | 3.71 | 3.05 | 0.99 | 30.1 | 9.9 | 1.17 | .275 | 3.62 | 6.82 |
| 7 | | A. Benitez | 10.93 | 779.0 | 762 | 40 | 47 | .460 | 0 | 3.13 | 946 | 0 | 0 | 289 | 545 | 271 | 296 | 95 | 403 | 16 | 527 | 32 | 3,253 | 18 | 4.66 | 2.35 | 1.10 | 29.1 | 12.4 | 1.22 | .251 | 3.42 | 6.30 |
| 8 | | F. Rodriguez | 10.53 | 976.0 | 948 | 52 | 53 | .495 | 0 | 2.86 | 1,142 | 0 | 0 | 437 | 738 | 310 | 336 | 98 | 389 | 17 | 677 | 42 | 4,011 | 68 | 3.59 | 2.94 | 0.90 | 28.5 | 9.7 | 1.15 | .271 | 3.10 | 6.81 |
| 9 | | A. Ottavino | 10.51 | 730.1 | 724 | 41 | 41 | .500 | 0 | 3.40 | 853 | 0 | 0 | 46 | 609 | 276 | 296 | 68 | 322 | 50 | 168 | 31 | 3,098 | 65 | 3.97 | 2.65 | 0.84 | 27.5 | 10.4 | 1.27 | .300 | 3.65 | 7.50 |
| 10 | | J. Nathan | 10.42 | 761.0 | 758 | 52 | 29 | .642 | 0 | 2.50 | 881 | 0 | 0 | 377 | 540 | 211 | 222 | 60 | 248 | 18 | 587 | 27 | 3,048 | 41 | 2.93 | 3.55 | 0.71 | 28.9 | 8.1 | 1.04 | .261 | 2.63 | 6.39 |
| 11 | | J. Papelbon | 10.06 | 709.2 | 686 | 41 | 36 | .532 | 0 | 2.45 | 793 | 0 | 0 | 368 | 557 | 193 | 221 | 55 | 175 | 32 | 585 | 17 | 2,867 | 13 | 2.22 | 4.53 | 0.70 | 27.7 | 6.1 | 1.03 | .277 | 2.80 | 7.06 |
| 12 | | T. Clippard | 10.04 | 825.2 | 793 | 52 | 46 | .531 | 0 | 2.99 | 921 | 0 | 0 | 74 | 576 | 274 | 295 | 101 | 319 | 31 | 212 | 17 | 3,365 | 45 | 3.48 | 2.89 | 1.10 | 27.4 | 9.5 | 1.08 | .238 | 3.22 | 6.28 |
| 13 | | T. Percival | 9.91 | 707.2 | 702 | 35 | 43 | .449 | 0 | 3.18 | 779 | 0 | 0 | 358 | 478 | 250 | 271 | 85 | 306 | 27 | 546 | 25 | 2,911 | 32 | 3.89 | 2.55 | 1.08 | 26.8 | 10.5 | 1.11 | .229 | 3.45 | 6.08 |
| 14 | | T. Henke | 9.81 | 789.2 | 642 | 41 | 42 | .494 | 0 | 2.67 | 861 | 0 | 0 | 311 | 607 | 234 | 252 | 64 | 255 | 9 | 548 | 29 | 3,194 | 30 | 2.91 | 3.38 | 0.73 | 27.0 | 8.0 | 1.09 | .271 | 2.87 | 6.92 |
| 15 | | S. Romo | 9.80 | 718.0 | 816 | 42 | 35 | .545 | 0 | 3.18 | 782 | 0 | 0 | 137 | 575 | 254 | 271 | 85 | 175 | 27 | 301 | 21 | 2,896 | 21 | 2.19 | 4.47 | 1.07 | 27.0 | 6.0 | 1.04 | .268 | 3.40 | 7.21 |
| 16 | | J. Soria | 9.79 | 762.0 | 772 | 36 | 45 | .444 | 0 | 3.11 | 829 | 0 | 0 | 229 | 631 | 263 | 278 | 66 | 231 | 27 | 427 | 18 | 3,141 | 33 | 2.73 | 3.59 | 0.78 | 26.4 | 7.4 | 1.13 | .284 | 3.28 | 7.45 |
| 17 | | T. Gordon | 9.72 | 847.1 | 687 | 65 | 53 | .551 | 0 | 3.29 | 915 | 0 | 0 | 158 | 652 | 310 | 329 | 65 | 358 | 16 | 347 | 39 | 3,515 | 54 | 3.80 | 2.56 | 0.69 | 26.0 | 10.2 | 1.19 | .272 | 3.49 | 6.93 |
| 18 | | J. Nelson | 9.51 | 784.2 | 798 | 48 | 45 | .516 | 0 | 3.41 | 829 | 0 | 0 | 33 | 633 | 297 | 329 | 55 | 428 | 64 | 237 | 59 | 3,402 | 36 | 4.91 | 1.94 | 0.63 | 24.4 | 12.6 | 1.35 | .285 | 3.77 | 7.26 |
| 19 | | S. Cishek | 9.41 | 710.2 | 737 | 33 | 43 | .434 | 0 | 2.98 | 743 | 0 | 0 | 133 | 565 | 235 | 264 | 54 | 288 | 59 | 312 | 38 | 2,993 | 29 | 3.65 | 2.58 | 0.68 | 24.8 | 9.6 | 1.20 | .276 | 3.34 | 7.16 |
| 20 |  | T. Hoffman | 9.36 | 1089.1 | 1,035 | 61 | 75 | .449 | 0 | 2.87 | 1,133 | 0 | 0 | 601 | 846 | 347 | 378 | 100 | 307 | 9 | 856 | 58 | 4,388 | 49 | 2.54 | 3.69 | 0.83 | 25.8 | 7.0 | 1.06 | .263 | 3.12 | 6.99 |
| 21 | | J. Benoit | 9.35 | 794.0 | 709 | 44 | 30 | .595 | 0 | 3.06 | 825 | 0 | 0 | 53 | 586 | 270 | 291 | 79 | 300 | 22 | 185 | 19 | 3,242 | 27 | 3.40 | 2.75 | 0.90 | 25.4 | 9.3 | 1.12 | .251 | 3.30 | 6.64 |
| 22 | | A. Rhodes | 9.35 | 865.2 | 839 | 69 | 48 | .590 | 0 | 3.43 | 899 | 0 | 0 | 33 | 697 | 330 | 347 | 85 | 343 | 12 | 161 | 44 | 3,566 | 33 | 3.57 | 2.62 | 0.88 | 25.2 | 9.6 | 1.20 | .275 | 3.61 | 7.25 |
| 23 | | K. Farnsworth | 9.34 | 844.2 | 867 | 37 | 55 | .402 | 0 | 4.00 | 877 | 0 | 0 | 57 | 781 | 375 | 409 | 100 | 348 | 23 | 293 | 36 | 3,622 | 38 | 3.71 | 2.52 | 1.07 | 24.2 | 9.6 | 1.34 | .299 | 4.36 | 8.32 |
| 24 | | R. Myers | 9.16 | 814.1 | 716 | 42 | 57 | .424 | 0 | 3.17 | 829 | 0 | 0 | 347 | 696 | 287 | 303 | 64 | 353 | 11 | 548 | 43 | 3,433 | 31 | 3.90 | 2.35 | 0.71 | 24.1 | 10.3 | 1.29 | .290 | 3.35 | 7.69 |
| 25 | | M. Davis | 9.14 | 708.1 | 539 | 34 | 50 | .405 | 0 | 3.46 | 719 | 0 | 0 | 96 | 601 | 272 | 306 | 70 | 336 | 17 | 265 | 51 | 3,028 | 45 | 4.27 | 2.14 | 0.89 | 23.7 | 11.1 | 1.32 | .282 | 3.89 | 7.64 |
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32
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AVG
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W
15
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K
185
Burns
ERA
2.86
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213
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MLB 2026 Standings
| NL East | W | L | PCT | GB |
|---|---|---|---|---|
 Braves - y | 94 | 68 | .580 | |
 Phillies - w | 88 | 74 | .543 | 6.0 |
80 | 82 | .494 | 14.0 | |
77 | 85 | .475 | 17.0 | |
74 | 88 | .457 | 20.0 | |
| NL Central | W | L | PCT | GB |
 Brewers - y | 103 | 59 | .636 | |
 Cubs - w | 89 | 73 | .549 | 14.0 |
82 | 80 | .506 | 21.0 | |
77 | 85 | .475 | 26.0 | |
75 | 87 | .463 | 28.0 | |
| NL West | W | L | PCT | GB |
 Dodgers - y | 100 | 62 | .617 | |
 Padres - w | 91 | 71 | .562 | 9.0 |
86 | 76 | .531 | 14.0 | |
65 | 97 | .401 | 35.0 | |
58 | 104 | .358 | 42.0 |
Marlins
Nationals
Mets
Diamondbacks
Giants
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
 Rays - y | 98 | 64 | .605 | |
 Yankees - w | 93 | 68 | .578 | 4.5 |
 Red Sox - w | 87 | 75 | .537 | 11.0 |
79 | 82 | .491 | 18.5 | |
79 | 83 | .488 | 19.0 | |
| AL Central | W | L | PCT | GB |
 Guardians - y | 85 | 77 | .525 | |
 White Sox - w | 84 | 78 | .519 | 1.0 |
77 | 85 | .475 | 8.0 | |
76 | 86 | .469 | 9.0 | |
69 | 93 | .426 | 16.0 | |
| AL West | W | L | PCT | GB |
 Astros - y | 81 | 81 | .500 | |
80 | 82 | .494 | 1.0 | |
76 | 86 | .469 | 5.0 | |
64 | 98 | .395 | 17.0 | |
62 | 100 | .383 | 19.0 |
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Twins
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Royals
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