| TEAM | MONTH | ERA | G | W% | W | L | SO | SHO | SV | IP | H | ER | R | HR | BB | HBP | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Blue Jays | March | 5.20 | 5 | .600 | 3 | 2 | 46 | 0 | 2 | 45.0 | 43 | 26 | 26 | 12 | 15 | 3 | 0 | 192 | 3 | 9.20 | 3.00 | 3.07 | 2.40 | 24.0 | 7.8 | 1.29 | .267 | 5.20 | 8.60 |
| 2 | | Blue Jays | April | 4.13 | 25 | .440 | 11 | 14 | 229 | 0 | 6 | 224.1 | 199 | 103 | 112 | 32 | 80 | 14 | 5 | 941 | 9 | 9.19 | 3.21 | 2.86 | 1.28 | 24.3 | 8.5 | 1.24 | .285 | 4.49 | 7.98 |
| 3 | | Blue Jays | May | 3.73 | 28 | .571 | 16 | 12 | 248 | 0 | 10 | 248.1 | 213 | 103 | 111 | 37 | 73 | 8 | 2 | 1,014 | 3 | 8.99 | 2.65 | 3.40 | 1.34 | 24.5 | 7.2 | 1.15 | .272 | 4.02 | 7.72 |
| 4 | | Blue Jays | June | 4.58 | 26 | .615 | 16 | 10 | 226 | 0 | 7 | 230.0 | 213 | 117 | 124 | 32 | 100 | 17 | 4 | 997 | 2 | 8.84 | 3.91 | 2.26 | 1.25 | 22.7 | 10.0 | 1.36 | .291 | 4.85 | 8.33 |
| 5 | | Blue Jays | July | 4.48 | 26 | .692 | 18 | 8 | 238 | 0 | 7 | 227.0 | 222 | 113 | 124 | 37 | 67 | 13 | 9 | 971 | 2 | 9.44 | 2.66 | 3.55 | 1.47 | 24.5 | 6.9 | 1.27 | .300 | 4.92 | 8.80 |
| 6 | | Blue Jays | August | 4.17 | 27 | .556 | 15 | 12 | 229 | 0 | 6 | 242.0 | 217 | 112 | 122 | 37 | 99 | 13 | 4 | 1,036 | 10 | 8.52 | 3.68 | 2.31 | 1.38 | 22.1 | 9.6 | 1.31 | .274 | 4.54 | 8.07 |
| 7 | | Blue Jays | September | 3.86 | 25 | .600 | 15 | 10 | 214 | 1 | 4 | 221.1 | 206 | 95 | 102 | 22 | 83 | 4 | 1 | 938 | 3 | 8.70 | 3.38 | 2.58 | 0.89 | 22.8 | 8.8 | 1.31 | .299 | 4.15 | 8.38 |
StatMuse has team, game-level data for ERA going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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