| 66 | Juan Guzman | - | 13 | 33 | 33 | 221.0 | 3.99 | 1.45 | 8.59 | 0.69 | 4.48 | 7.90 | 0.57 | 0.74 | 20 | 3 | 836 | .252 | 963 | 3.91 | 41.3 | 58.7 | 12.5 |
| 41 | Pat Hentgen | - | 22 | 34 | 32 | 216.1 | 3.87 | 1.34 | 8.94 | 1.12 | 3.08 | 5.08 | 0.61 | 0.67 | 16 | 7 | 834 | .258 | 926 | 3.76 | 38.8 | 61.2 | 5.9 |
| 30 | Todd Stottlemyre | - | 42 | 30 | 28 | 176.2 | 4.84 | 1.55 | 10.39 | 0.56 | 3.52 | 4.99 | 0.70 | 0.74 | 9 | 3 | 698 | .292 | 785 | 3.36 | 40.6 | 59.4 | 7.4 |
| 34 | Dave Stewart | - | 68 | 26 | 26 | 162.0 | 4.44 | 1.35 | 8.11 | 1.28 | 4.00 | 5.33 | 0.75 | 0.53 | 11 | 4 | 604 | .242 | 687 | 3.58 | 37.9 | 62.1 | 8.1 |
| 47 | Jack Morris | - | 62 | 27 | 27 | 152.2 | 6.19 | 1.66 | 11.14 | 1.06 | 3.83 | 6.07 | 0.63 | 1.06 | 8 | 3 | 625 | .302 | 702 | 3.29 | 37.8 | 62.2 | 10.6 |
| 28 | Al Leiter | - | 66 | 34 | 12 | 105.0 | 4.11 | 1.42 | 7.97 | 0.69 | 4.80 | 5.66 | 0.85 | 1.23 | 5 | 4 | 388 | .240 | 453 | 3.77 | 42.5 | 57.5 | 8.4 |
| 50 | Danny Cox | - | - | 44 | 0 | 83.2 | 3.12 | 1.22 | 7.85 | 0.86 | 3.12 | 9.04 | 0.35 | 0.83 | 0 | 0 | 318 | .230 | 349 | 3.74 | 40.9 | 59.1 | 12.4 |
| 48 | Mark Eichhorn | - | - | 54 | 0 | 72.2 | 2.72 | 1.35 | 9.41 | 0.37 | 2.72 | 5.82 | 0.47 | 1.63 | 0 | 3 | 279 | .272 | 310 | 3.33 | 38.0 | 62.0 | 9.1 |
| 31 | Duane Ward | - | 21 | 71 | 0 | 71.2 | 2.13 | 1.03 | 6.15 | 0.50 | 3.14 | 12.18 | 0.26 | 0.81 | 0 | 1 | 254 | .193 | 282 | 3.63 | 35.4 | 64.6 | 15.4 |
| 40 | Mike Timlin | - | 86 | 54 | 0 | 55.2 | 4.69 | 1.62 | 10.19 | 1.13 | 4.37 | 7.92 | 0.55 | 1.43 | 0 | 1 | 222 | .284 | 254 | 3.65 | 36.9 | 63.1 | 11.9 |
| 49 | Tony Castillo | - | - | 51 | 0 | 50.2 | 3.37 | 1.30 | 7.82 | 0.71 | 3.91 | 4.97 | 0.79 | 1.04 | 0 | 0 | 182 | .242 | 211 | 3.72 | 40.4 | 59.6 | 6.0 |
| 54 | Woody Williams | - | - | 30 | 0 | 37.0 | 4.38 | 1.68 | 9.73 | 0.49 | 5.35 | 5.84 | 0.92 | 0.61 | 0 | 1 | 146 | .274 | 172 | 3.30 | 40.7 | 59.3 | 7.7 |
| 44 | Scott Brow | - | - | 6 | 3 | 18.0 | 6.00 | 1.61 | 9.50 | 1.00 | 5.00 | 3.50 | 1.43 | 1.00 | 0 | 1 | 69 | .275 | 83 | 3.41 | 45.9 | 54.1 | 7.1 |
| 26 | Doug Linton | - | - | 4 | 1 | 11.0 | 6.55 | 1.82 | 9.00 | -- | 7.36 | 3.27 | 2.25 | 0.78 | 0 | 0 | 0 | -- | 0 | -- | 46.3 | 53.7 | 4.4 |
| 32 | Huck Flener | - | - | 6 | 0 | 6.2 | 4.05 | 1.65 | 9.45 | -- | 5.40 | 2.70 | 2.00 | 1.30 | 0 | 0 | 26 | .269 | 30 | 3.27 | 42.9 | 57.1 | 6.1 |
| 46 | Ken Dayley | - | - | 2 | 0 | 0.2 | 0.00 | 7.50 | 13.50 | -- | 54.00 | 27.00 | 2.00 | 0.00 | 0 | 0 | 3 | .333 | 7 | 4.14 | 69.0 | 31.0 | 3.4 |