Roger Clemens had a record of 41-13 with an ERA of 2.33 and 563 strikeouts in 67 appearances for the Blue Jays in the regular-season and playoffs 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 |  | R. Clemens | 1997 |  TOR | 34 | 21 | 7 | .750 | 34 | 2.05 | 292 | 9 | 3 | 0 | 264.0 | 204 | 60 | 65 | 9 | 68 | 12 | 0 | 1 | 1,044 | 4 | 9.95 | 2.32 | 4.29 | 0.31 | 28.0 | 6.5 | 1.03 | .294 | 2.22 | 45 | 2.24 | 50 | 6.95 | 66.3 |
| 2 | | R. Clemens | 1998 | TOR | 33 | 20 | 6 | .769 | 33 | 2.65 | 271 | 5 | 3 | 0 | 234.2 | 169 | 69 | 78 | 11 | 88 | 7 | 0 | 0 | 961 | 6 | 10.39 | 3.38 | 3.08 | 0.42 | 28.2 | 9.2 | 1.10 | .271 | 2.99 | 57 | 2.65 | 59 | 6.48 | 49.2 |
| Total | 67 | 41 | 13 | .759 | 67 | 2.33 | 563 | 14 | 6 | 0 | 498.2 | 373 | 129 | 143 | 20 | 156 | 19 | 0 | 1 | 2,005 | 10 | 10.16 | 2.82 | 3.61 | 0.36 | 28.1 | 7.8 | 1.06 | .283 | 2.58 | 51 | 2.43 | 54 | 6.73 | 115.5 |
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