| NAME | IP | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | 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 |  | C. Buchholz | 22.2 | 2007 |  BOS | 4 | 3 | 1 | .750 | 3 | 1.59 | 22 | 1 | 1 | 0 | 14 | 4 | 6 | 0 | 10 | 1 | 0 | 0 | 88 | 0 | 8.74 | 3.97 | 2.20 | 0.00 | 25.0 | 11.4 | 1.06 | .255 | 2.38 | 34 | 2.74 | 64 | 5.56 | 4 |
| 2 | | C. Buchholz | 76.0 | 2008 | BOS | 16 | 2 | 9 | .182 | 15 | 6.75 | 72 | 1 | 0 | 0 | 93 | 57 | 63 | 11 | 41 | 2 | 0 | 1 | 357 | 2 | 8.53 | 4.86 | 1.76 | 1.30 | 20.2 | 11.5 | 1.76 | .355 | 7.46 | 149 | 4.81 | 115 | 11.01 | -5.5 |
| 3 | | C. Buchholz | 92.0 | 2009 | BOS | 16 | 7 | 4 | .636 | 16 | 4.21 | 68 | 0 | 0 | 0 | 91 | 43 | 44 | 13 | 36 | 2 | 0 | 1 | 399 | 1 | 6.65 | 3.52 | 1.89 | 1.27 | 17.0 | 9.0 | 1.38 | .279 | 4.30 | 90 | 4.68 | 108 | 8.90 | -3.9 |
| 4 | | C. Buchholz | 173.2 | 2010 | BOS | 28 | 17 | 7 | .708 | 28 | 2.33 | 120 | 1 | 1 | 0 | 142 | 45 | 55 | 9 | 67 | 5 | 0 | 1 | 711 | 7 | 6.22 | 3.47 | 1.79 | 0.47 | 16.9 | 9.4 | 1.20 | .261 | 2.85 | 54 | 3.61 | 87 | 7.36 | 10 |
| 5 | | C. Buchholz | 82.2 | 2011 | BOS | 14 | 6 | 3 | .667 | 14 | 3.48 | 60 | 0 | 0 | 0 | 76 | 32 | 34 | 10 | 31 | 2 | 0 | 1 | 353 | 3 | 6.53 | 3.38 | 1.94 | 1.09 | 17.0 | 8.8 | 1.29 | .264 | 3.70 | 82 | 4.34 | 110 | 8.27 | -3.6 |
| 6 | | C. Buchholz | 189.1 | 2012 | BOS | 29 | 11 | 8 | .579 | 29 | 4.56 | 129 | 2 | 1 | 0 | 187 | 96 | 104 | 25 | 64 | 12 | 0 | 2 | 802 | 2 | 6.13 | 3.04 | 2.02 | 1.19 | 16.1 | 8.0 | 1.33 | .283 | 4.94 | 108 | 4.64 | 115 | 8.89 | -13 |
| 7 | | C. Buchholz | 108.1 | 2013 | BOS | 16 | 12 | 1 | .923 | 16 | 1.74 | 96 | 1 | 1 | 0 | 75 | 21 | 23 | 4 | 36 | 1 | 0 | 0 | 416 | 1 | 7.98 | 2.99 | 2.67 | 0.33 | 23.1 | 8.7 | 1.02 | .254 | 1.91 | 42 | 2.78 | 71 | 6.23 | 13.5 |
| 8 | | C. Buchholz | 170.1 | 2014 | BOS | 28 | 8 | 11 | .421 | 28 | 5.34 | 132 | 2 | 2 | 0 | 182 | 101 | 108 | 17 | 54 | 10 | 0 | 2 | 737 | 8 | 6.97 | 2.85 | 2.44 | 0.90 | 17.9 | 7.3 | 1.39 | .315 | 5.71 | 133 | 4.00 | 107 | 9.62 | -4.9 |
| 9 | | C. Buchholz | 113.1 | 2015 | BOS | 18 | 7 | 7 | .500 | 18 | 3.26 | 107 | 1 | 0 | 0 | 114 | 41 | 48 | 6 | 23 | 5 | 0 | 0 | 469 | 3 | 8.50 | 1.83 | 4.65 | 0.48 | 22.8 | 4.9 | 1.21 | .329 | 3.81 | 78 | 2.67 | 67 | 9.05 | 16.4 |
| 10 | | C. Buchholz | 139.1 | 2016 | BOS | 37 | 8 | 10 | .444 | 21 | 4.78 | 93 | 0 | 0 | 0 | 130 | 74 | 80 | 21 | 55 | 5 | 7 | 1 | 588 | 1 | 6.01 | 3.55 | 1.69 | 1.36 | 15.8 | 9.4 | 1.33 | .263 | 5.17 | 108 | 5.06 | 120 | 8.40 | -13.5 |
| Total | 1167.2 | 206 | 81 | 61 | .570 | 188 | 3.96 | 899 | 9 | 6 | 0 | 1,104 | 514 | 565 | 116 | 417 | 45 | 7 | 9 | 4,920 | 28 | 6.93 | 3.21 | 2.16 | 0.89 | 18.3 | 8.5 | 1.30 | .287 | 4.35 | 93 | 4.04 | 100 | 8.51 | -0.4 |
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