Pedro Martinez had a 117-37 record with an ERA of 2.52 and 1,683 strikeouts in 203 appearances for the Red Sox in his career.
| NAME | SEASON | TM | G | W | L | 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 |  | P. Martinez | 1998 |  BOS | 33 | 19 | 7 | .731 | 33 | 2.89 | 251 | 3 | 2 | 0 | 233.2 | 188 | 75 | 82 | 26 | 67 | 8 | 0 | 3 | 951 | 9 | 9.67 | 2.58 | 3.75 | 1.00 | 26.4 | 7.0 | 1.09 | .270 | 3.16 | 61 | 3.39 | 76 | 7.24 | 28.4 |
| 2 | | P. Martinez | 1999 | BOS | 31 | 23 | 4 | .852 | 29 | 2.07 | 313 | 5 | 1 | 0 | 213.1 | 160 | 49 | 56 | 9 | 37 | 9 | 1 | 1 | 835 | 6 | 13.20 | 1.56 | 8.46 | 0.38 | 37.5 | 4.4 | 0.92 | .323 | 2.36 | 42 | 1.38 | 30 | 6.75 | 79.4 |
| 3 | | P. Martinez | 2000 | BOS | 29 | 18 | 6 | .750 | 29 | 1.74 | 284 | 7 | 4 | 0 | 217.0 | 128 | 42 | 44 | 17 | 32 | 14 | 0 | 0 | 817 | 1 | 11.78 | 1.33 | 8.88 | 0.71 | 34.8 | 3.9 | 0.74 | .236 | 1.82 | 35 | 2.16 | 47 | 5.31 | 61.5 |
| 4 | | P. Martinez | 2001 | BOS | 18 | 7 | 3 | .700 | 18 | 2.39 | 163 | 1 | 0 | 0 | 116.2 | 84 | 31 | 33 | 5 | 25 | 6 | 0 | 0 | 456 | 4 | 12.57 | 1.93 | 6.52 | 0.39 | 35.7 | 5.5 | 0.93 | .307 | 2.55 | 52 | 1.60 | 37 | 6.48 | 35.8 |
| 5 | | P. Martinez | 2002 | BOS | 30 | 20 | 4 | .833 | 30 | 2.26 | 239 | 2 | 0 | 0 | 199.1 | 144 | 50 | 62 | 13 | 40 | 15 | 0 | 1 | 787 | 3 | 10.79 | 1.81 | 5.98 | 0.59 | 30.4 | 5.1 | 0.92 | .273 | 2.80 | 50 | 2.23 | 53 | 6.50 | 45.4 |
| 6 | | P. Martinez | 2003 | BOS | 29 | 14 | 4 | .778 | 29 | 2.22 | 206 | 3 | 0 | 0 | 186.2 | 147 | 46 | 52 | 7 | 47 | 9 | 0 | 0 | 749 | 5 | 9.93 | 2.27 | 4.38 | 0.34 | 27.5 | 6.3 | 1.04 | .292 | 2.51 | 48 | 2.21 | 50 | 7.09 | 45.7 |
| 7 | | P. Martinez | 2004 | BOS | 33 | 16 | 9 | .640 | 33 | 3.90 | 227 | 1 | 1 | 0 | 217.0 | 193 | 94 | 99 | 26 | 61 | 16 | 0 | 0 | 903 | 2 | 9.41 | 2.53 | 3.72 | 1.08 | 25.1 | 6.8 | 1.17 | .291 | 4.11 | 83 | 3.57 | 81 | 8.00 | 19.9 |
| Total | 203 | 117 | 37 | .760 | 201 | 2.52 | 1,683 | 22 | 8 | 0 | 1383.2 | 1,044 | 387 | 428 | 103 | 309 | 77 | 1 | 5 | 5,498 | 30 | 10.95 | 2.01 | 5.45 | 0.67 | 30.6 | 5.6 | 0.98 | .283 | 2.78 | 53 | 2.44 | 55 | 6.79 | 316.2 |
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