
Between 2020 and 2026, Mitch Keller has lost the most games for the Pirates in a season, with 15 games in 2025.
| NAME | L | SEASON | TM | W | L% | G | W% | GS | ERA | SO | 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 | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | M. Keller | 15 | 2025 | 6 | .714 | 32 | .286 | 32 | 4.19 | 150 | 0 | 0 | 0 | 176.1 | 171 | 82 | 91 | 21 | 51 | 10 | 0 | 0 | 749 | 5 | 7.66 | 2.60 | 2.94 | 1.07 | 20.0 | 6.8 | 1.26 | .290 | 4.64 | 96 | 4.01 | 97 | 8.73 | 2.3 | ||
| 2 | J. Oviedo | 14 | 2023 | 9 | .609 | 32 | .391 | 32 | 4.31 | 158 | 1 | 1 | 0 | 177.2 | 161 | 85 | 91 | 19 | 83 | 13 | 0 | 1 | 781 | 7 | 8.00 | 4.20 | 1.90 | 0.96 | 20.2 | 10.6 | 1.37 | .280 | 4.61 | 96 | 4.48 | 102 | 8.16 | -2.2 | ||
| 3 | JT Brubaker | 13 | 2021 | 5 | .722 | 24 | .278 | 24 | 5.36 | 129 | 0 | 0 | 0 | 124.1 | 123 | 74 | 75 | 28 | 38 | 9 | 0 | 1 | 538 | 3 | 9.34 | 2.75 | 3.39 | 2.03 | 24.0 | 7.1 | 1.29 | .284 | 5.43 | 126 | 5.15 | 121 | 8.90 | -12.6 | ||
| 4 | M. Keller | 12 | 2024 | 11 | .522 | 31 | .478 | 31 | 4.25 | 166 | 1 | 0 | 0 | 178.0 | 182 | 84 | 90 | 23 | 50 | 15 | 0 | 0 | 773 | 1 | 8.39 | 2.53 | 3.32 | 1.16 | 21.5 | 6.5 | 1.30 | .306 | 4.55 | 101 | 4.07 | 100 | 9.20 | -0.2 | ||
| 5 | M. Keller | 12 | 2022 | 5 | .706 | 31 | .294 | 29 | 3.91 | 138 | 0 | 0 | 0 | 159.0 | 162 | 69 | 77 | 14 | 60 | 12 | 0 | 1 | 687 | 2 | 7.81 | 3.40 | 2.30 | 0.79 | 20.1 | 8.7 | 1.40 | .320 | 4.36 | 96 | 3.87 | 97 | 9.17 | 2 | ||
| 6 | JT Brubaker | 12 | 2022 | 3 | .800 | 28 | .200 | 28 | 4.69 | 147 | 0 | 0 | 0 | 144.0 | 157 | 75 | 85 | 17 | 54 | 9 | 0 | 0 | 646 | 6 | 9.19 | 3.38 | 2.72 | 1.06 | 22.8 | 8.4 | 1.47 | .334 | 5.31 | 115 | 3.91 | 98 | 9.81 | 1.2 | ||
| 7 | P. Skenes | 11 | 2026 | 10 | .524 | 32 | .476 | 32 | 3.82 | 200 | 0 | 0 | 0 | 174.1 | 146 | 74 | 82 | 20 | 49 | 11 | 0 | 0 | 712 | 2 | 10.33 | 2.53 | 4.08 | 1.03 | 28.1 | 6.9 | 1.12 | .292 | 4.23 | 88 | 3.32 | 79 | 7.54 | 17.1 | ||
| 8 | M. Keller | 11 | 2021 | 5 | .688 | 23 | .313 | 23 | 6.17 | 92 | 0 | 0 | 0 | 100.2 | 131 | 69 | 69 | 10 | 49 | 7 | 0 | 1 | 470 | 2 | 8.23 | 4.38 | 1.88 | 0.89 | 19.6 | 10.4 | 1.79 | .388 | 6.17 | 146 | 4.29 | 101 | 11.71 | -0.6 | ||
| 9 | B. Chandler | 10 | 2026 | 8 | .556 | 31 | .444 | 30 | 4.50 | 140 | 0 | 0 | 0 | 154.0 | 136 | 77 | 89 | 15 | 80 | 7 | 0 | 1 | 674 | 4 | 8.18 | 4.68 | 1.75 | 0.88 | 20.8 | 11.9 | 1.40 | .280 | 5.20 | 104 | 4.24 | 101 | 7.95 | -0.5 | ||
| 10 | A. Heaney | 10 | 2025 | 5 | .667 | 26 | .333 | 23 | 5.39 | 84 | 0 | 0 | 0 | 120.1 | 125 | 72 | 74 | 24 | 39 | 9 | 0 | 0 | 525 | 2 | 6.28 | 2.92 | 2.15 | 1.80 | 16.0 | 7.4 | 1.36 | .274 | 5.53 | 124 | 5.52 | 134 | 9.35 | -18.6 | ||
| 11 | P. Skenes | 10 | 2025 | 10 | .500 | 32 | .500 | 32 | 1.97 | 216 | 1 | 0 | 0 | 187.2 | 136 | 41 | 45 | 11 | 42 | 6 | 0 | 0 | 733 | 2 | 10.36 | 2.01 | 5.14 | 0.53 | 29.5 | 5.7 | 0.95 | .273 | 2.16 | 45 | 2.36 | 57 | 6.52 | 37 | ||
| 12 | R. Hill | 10 | 2023 | 7 | .588 | 22 | .412 | 22 | 4.76 | 104 | 0 | 0 | 0 | 119.0 | 129 | 63 | 70 | 15 | 47 | 4 | 0 | 0 | 530 | 1 | 7.87 | 3.55 | 2.21 | 1.13 | 19.6 | 8.9 | 1.48 | .317 | 5.29 | 107 | 4.43 | 101 | 9.76 | -0.7 | ||
| 13 | W. Crowe | 10 | 2022 | 6 | .625 | 60 | .375 | 1 | 4.38 | 68 | 0 | 0 | 4 | 76.0 | 68 | 37 | 40 | 8 | 38 | 3 | 20 | 0 | 332 | 3 | 8.05 | 4.50 | 1.79 | 0.95 | 20.5 | 11.4 | 1.39 | .279 | 4.74 | 107 | 4.30 | 108 | 8.05 | -2.7 | ||
| 14 | Z. Thompson | 10 | 2022 | 3 | .769 | 29 | .231 | 22 | 5.18 | 90 | 0 | 0 | 0 | 121.2 | 138 | 70 | 76 | 19 | 46 | 3 | 1 | 0 | 543 | 5 | 6.66 | 3.40 | 1.96 | 1.41 | 16.6 | 8.5 | 1.51 | .309 | 5.62 | 127 | 4.87 | 122 | 10.21 | -11.9 | ||
| 15 | B. Falter | 9 | 2024 | 8 | .529 | 28 | .471 | 28 | 4.43 | 97 | 0 | 0 | 0 | 142.1 | 138 | 70 | 72 | 17 | 45 | 0 | 0 | 0 | 589 | 0 | 6.13 | 2.85 | 2.16 | 1.07 | 16.5 | 7.6 | 1.29 | .281 | 4.55 | 105 | 4.30 | 106 | 8.73 | -3.8 | ||
| 16 | M. Keller | 9 | 2023 | 13 | .409 | 32 | .591 | 32 | 4.21 | 210 | 1 | 1 | 0 | 194.1 | 187 | 91 | 97 | 25 | 55 | 12 | 0 | 0 | 825 | 5 | 9.73 | 2.55 | 3.82 | 1.16 | 25.5 | 6.7 | 1.25 | .310 | 4.49 | 94 | 3.79 | 87 | 8.66 | 12.5 | ||
| 17 | B. Wilson | 9 | 2022 | 3 | .750 | 25 | .250 | 20 | 5.52 | 79 | 0 | 0 | 0 | 115.2 | 132 | 71 | 80 | 20 | 32 | 9 | 0 | 1 | 509 | 2 | 6.15 | 2.49 | 2.47 | 1.56 | 15.5 | 6.3 | 1.42 | .304 | 6.22 | 135 | 5.05 | 127 | 10.27 | -13.7 | ||
| 18 | M. Keller | 8 | 2026 | 6 | .571 | 22 | .429 | 22 | 5.29 | 89 | 0 | 0 | 0 | 115.2 | 117 | 68 | 73 | 15 | 42 | 8 | 0 | 0 | 503 | 4 | 6.93 | 3.27 | 2.12 | 1.17 | 17.7 | 8.3 | 1.37 | .292 | 5.68 | 122 | 4.54 | 108 | 9.10 | -4.2 | ||
| 19 | C. Mlodzinski | 8 | 2025 | 5 | .615 | 34 | .385 | 12 | 3.55 | 89 | 0 | 0 | 0 | 99.0 | 102 | 39 | 42 | 8 | 27 | 4 | 7 | 0 | 419 | 5 | 8.09 | 2.45 | 3.30 | 0.73 | 21.2 | 6.4 | 1.30 | .323 | 3.82 | 82 | 3.32 | 80 | 9.27 | 8.9 | ||
| 20 | D. Bednar | 8 | 2024 | 3 | .727 | 62 | .273 | 0 | 5.77 | 58 | 0 | 0 | 23 | 57.2 | 54 | 37 | 40 | 9 | 28 | 3 | 45 | 3 | 262 | 2 | 9.05 | 4.37 | 2.07 | 1.40 | 22.1 | 10.7 | 1.42 | .274 | 6.24 | 137 | 4.79 | 118 | 8.43 | -4.7 | ||
| 21 | J. Jones | 8 | 2024 | 6 | .571 | 22 | .429 | 22 | 4.14 | 132 | 0 | 0 | 0 | 121.2 | 106 | 56 | 60 | 18 | 39 | 5 | 0 | 1 | 504 | 3 | 9.76 | 2.88 | 3.38 | 1.33 | 26.2 | 7.7 | 1.19 | .284 | 4.44 | 98 | 4.00 | 99 | 7.84 | 0.8 | ||
| 22 | T. Anderson | 8 | 2021 | 5 | .615 | 18 | .385 | 18 | 4.35 | 86 | 0 | 0 | 0 | 103.1 | 99 | 50 | 52 | 16 | 25 | 1 | 0 | 0 | 430 | 0 | 7.49 | 2.18 | 3.44 | 1.39 | 20.0 | 5.8 | 1.20 | .275 | 4.53 | 103 | 4.27 | 101 | 8.62 | -0.3 | ||
| 23 | W. Crowe | 8 | 2021 | 4 | .667 | 26 | .333 | 25 | 5.48 | 111 | 0 | 0 | 0 | 116.2 | 126 | 71 | 75 | 25 | 57 | 6 | 0 | 1 | 524 | 3 | 8.56 | 4.40 | 1.95 | 1.93 | 21.2 | 10.9 | 1.57 | .311 | 5.79 | 129 | 5.67 | 134 | 9.72 | -18.5 | ||
| 24 | T. Williams | 8 | 2020 | 2 | .800 | 11 | .200 | 11 | 6.18 | 49 | 0 | 0 | 0 | 55.1 | 66 | 38 | 42 | 15 | 21 | 4 | 0 | 0 | 252 | 1 | 7.97 | 3.42 | 2.33 | 2.44 | 19.4 | 8.3 | 1.57 | .313 | 6.83 | 138 | 6.29 | 140 | 10.73 | -10.9 | ||
| 25 | C. Mlodzinski | 7 | 2026 | 8 | .467 | 37 | .533 | 12 | 3.95 | 97 | 0 | 0 | 2 | 123.0 | 125 | 54 | 62 | 10 | 44 | 4 | 4 | 1 | 537 | 0 | 7.10 | 3.22 | 2.20 | 0.73 | 18.1 | 8.2 | 1.37 | .301 | 4.54 | 91 | 3.74 | 89 | 9.15 | 6.3 | ||
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| NL East | W | L | PCT | GB |
|---|---|---|---|---|
94 | 68 | .580 | ||
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 |
103 | 59 | .636 | ||
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 |
100 | 62 | .617 | ||
91 | 71 | .562 | 9.0 | |
86 | 76 | .531 | 14.0 | |
65 | 97 | .401 | 35.0 | |
58 | 104 | .358 | 42.0 |
| AL East | W | L | PCT | GB |
|---|---|---|---|---|
98 | 64 | .605 | ||
93 | 68 | .578 | 4.5 | |
87 | 75 | .537 | 11.0 | |
79 | 82 | .491 | 18.5 | |
79 | 83 | .488 | 19.0 | |
| AL Central | W | L | PCT | GB |
85 | 77 | .525 | ||
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 |
81 | 81 | .500 | ||
80 | 82 | .494 | 1.0 | |
76 | 86 | .469 | 5.0 | |
64 | 98 | .395 | 17.0 | |
62 | 100 | .383 | 19.0 |