| SP | Peavy, J.Peavy, Jake † >> | 23 | 2004 | R | 88 | 27 | 27 | 7 | 10 | 3.57 | .288 | 1.19 | 8.1 | 2.6 | 8.8 | 174.0 | 156 | 78 | 69 | 14 | 51 | 171 | 2 | 0 | 0 | 1 | 16 | 4 | 1 | 3.03 |
| SP | Pineiro, J.Pineiro, Joel # >> | 26 | 2004 | R | 43 | 26 | 26 | 8 | 14 | 5.09 | .341 | 1.54 | 10.2 | 3.7 | 7.1 | 150.1 | 170 | 86 | 85 | 24 | 62 | 119 | 1 | 0 | 0 | 0 | 10 | 1 | 3 | 4.75 |
| SP | Tomko, B.Tomko, Brett # >> | 31 | 2004 | R | 40 | 26 | 26 | 6 | 9 | 5.66 | .321 | 1.38 | 9.9 | 2.5 | 6.2 | 143.0 | 157 | 93 | 90 | 24 | 40 | 99 | 0 | 0 | 0 | 0 | 9 | 6 | 7 | 4.76 |
| SP | Halladay, R.Halladay, Roy >> | 27 | 2004 | R | 36 | 25 | 25 | 6 | 13 | 6.44 | .335 | 1.46 | 10.2 | 3.0 | 6.5 | 138.1 | 156 | 102 | 99 | 32 | 46 | 99 | 1 | 0 | 0 | 1 | 8 | 7 | 4 | 5.73 |
| RP | Takatsu, S.Takatsu, Shingo >> | 36 | 2004 | R | 90 | 82 | 0 | 4 | 2 | 2.36 | .281 | 1.16 | 7.3 | 3.2 | 6.3 | 91.1 | 74 | 24 | 24 | 6 | 32 | 64 | 0 | 4 | 5 | 0 | 0 | 1 | 5 | 3.54 |
| RP | Torres, S.Torres, Salomon >> | 32 | 2004 | R | 54 | 71 | 0 | 2 | 5 | 2.79 | .285 | 1.16 | 7.1 | 3.3 | 5.8 | 87.0 | 69 | 30 | 27 | 5 | 32 | 56 | 0 | 8 | 0 | 0 | 0 | 3 | 3 | 3.67 |
| RP | Farnsworth, K.Farnsworth, Kyle >> | 28 | 2004 | R | 13 | 46 | 0 | 1 | 3 | 5.29 | .335 | 1.45 | 8.5 | 4.6 | 9.5 | 51.0 | 48 | 32 | 30 | 10 | 26 | 54 | 0 | 3 | 1 | 0 | 0 | 3 | 0 | 5.14 |
| SP | Willis, D.Willis, Dontrelle >> | 22 | 2004 | L | 27 | 23 | 0 | 1 | 6 | 5.87 | .308 | 1.34 | 9.9 | 2.4 | 6.6 | 30.2 | 33 | 20 | 20 | 11 | 8 | 22 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 7.10 |