| 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 |  | J. Beckett | 204.2 | 2006 |  BOS | 33 | 16 | 11 | .593 | 33 | 5.01 | 158 | 0 | 0 | 0 | 191 | 114 | 120 | 36 | 74 | 10 | 0 | 1 | 869 | 11 | 6.95 | 3.25 | 2.14 | 1.58 | 18.2 | 8.5 | 1.29 | .262 | 5.28 | 107 | 5.11 | 116 | 8.40 | -16.2 |
| 2 | | J. Beckett | 200.2 | 2007 | BOS | 30 | 20 | 7 | .741 | 30 | 3.27 | 194 | 1 | 0 | 0 | 189 | 73 | 76 | 17 | 40 | 5 | 0 | 0 | 822 | 3 | 8.70 | 1.79 | 4.85 | 0.76 | 23.6 | 4.9 | 1.14 | .304 | 3.41 | 71 | 3.07 | 71 | 8.48 | 28 |
| 3 | | J. Beckett | 174.1 | 2008 | BOS | 27 | 12 | 10 | .545 | 27 | 4.03 | 172 | 1 | 0 | 0 | 173 | 78 | 80 | 18 | 34 | 9 | 0 | 1 | 725 | 5 | 8.88 | 1.76 | 5.06 | 0.93 | 23.7 | 4.7 | 1.19 | .315 | 4.13 | 89 | 3.23 | 77 | 8.93 | 18.8 |
| 4 | | J. Beckett | 212.1 | 2009 | BOS | 32 | 17 | 6 | .739 | 32 | 3.86 | 199 | 4 | 2 | 0 | 198 | 91 | 99 | 25 | 55 | 7 | 0 | 1 | 883 | 3 | 8.43 | 2.33 | 3.62 | 1.06 | 22.5 | 6.2 | 1.19 | .290 | 4.20 | 83 | 3.62 | 84 | 8.39 | 16.7 |
| 5 | | J. Beckett | 127.2 | 2010 | BOS | 21 | 6 | 6 | .500 | 21 | 5.78 | 116 | 0 | 0 | 0 | 151 | 82 | 89 | 20 | 45 | 8 | 0 | 3 | 577 | 3 | 8.18 | 3.17 | 2.58 | 1.41 | 20.1 | 7.8 | 1.54 | .338 | 6.27 | 133 | 4.54 | 110 | 10.64 | -6 |
| 6 | | J. Beckett | 193.0 | 2011 | BOS | 30 | 13 | 7 | .650 | 30 | 2.89 | 175 | 1 | 1 | 0 | 146 | 62 | 65 | 21 | 52 | 9 | 0 | 1 | 767 | 6 | 8.16 | 2.42 | 3.37 | 0.98 | 22.8 | 6.8 | 1.03 | .245 | 3.03 | 68 | 3.57 | 90 | 6.81 | 8.4 |
| 7 | | J. Beckett | 127.1 | 2012 | BOS | 21 | 5 | 11 | .313 | 21 | 5.23 | 94 | 0 | 0 | 0 | 131 | 74 | 75 | 16 | 38 | 5 | 0 | 2 | 547 | 4 | 6.64 | 2.69 | 2.47 | 1.13 | 17.2 | 6.9 | 1.33 | .292 | 5.30 | 123 | 4.26 | 105 | 9.26 | -3.2 |
| Total | 1240.0 | 194 | 89 | 58 | .605 | 194 | 4.17 | 1,108 | 7 | 3 | 0 | 1,179 | 574 | 604 | 153 | 338 | 53 | 0 | 9 | 5,190 | 35 | 8.04 | 2.45 | 3.28 | 1.11 | 21.3 | 6.5 | 1.22 | .290 | 4.38 | 93 | 3.87 | 92 | 8.56 | 46.7 |
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