| SP | Carpenter, C.Carpenter, Chris >> | 29 | 2004 | R | 78 | 8 | 8 | 4 | 2 | 3.34 | .261 | 1.06 | 8.0 | 1.6 | 7.7 | 56.2 | 50 | 23 | 21 | 5 | 10 | 48 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 2.98 |
| SP | Morris, M.Morris, Matt >> | 30 | 2004 | R | 39 | 8 | 8 | 2 | 2 | 6.60 | .348 | 1.58 | 10.4 | 3.8 | 5.6 | 45.0 | 52 | 33 | 33 | 7 | 19 | 28 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 5.11 |
| SP | Williams, W.Williams, Woody >> | 38 | 2004 | R | 34 | 8 | 8 | 3 | 2 | 4.56 | .330 | 1.46 | 10.0 | 3.3 | 5.6 | 47.1 | 52 | 25 | 24 | 4 | 17 | 29 | 0 | 0 | 0 | 0 | 5 | 1 | 1 | 4.02 |
| SP | Suppan, J.Suppan, Jeff >> | 29 | 2004 | R | 24 | 7 | 6 | 3 | 1 | 3.29 | .339 | 1.51 | 9.7 | 4.0 | 6.1 | 41.0 | 44 | 15 | 15 | 7 | 18 | 28 | 0 | 1 | 0 | 0 | 5 | 1 | 1 | 5.24 |
| RP | Isringhausen, J.Isringhausen, Jason >> | 32 | 2004 | R | 90 | 26 | 0 | 2 | 0 | 2.42 | .256 | 0.99 | 7.0 | 2.0 | 6.1 | 22.1 | 17 | 6 | 6 | 2 | 5 | 15 | 0 | 1 | 1 | 0 | 0 | 1 | 2 | 3.64 |
| CL | Calero, K.Calero, Kiko >> | 29 | 2004 | R | 99 | 21 | 0 | 3 | 1 | 0.39 | .169 | 0.61 | 3.5 | 2.0 | 8.2 | 23.0 | 9 | 1 | 1 | 0 | 5 | 21 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 1.83 |
| RP | Tavarez, J.Tavarez, Julian >> | 31 | 2004 | R | 62 | 18 | 0 | 1 | 2 | 4.15 | .235 | 0.92 | 6.2 | 2.1 | 9.0 | 13.0 | 9 | 6 | 6 | 2 | 3 | 13 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 3.69 |
| SP | Marquis, J.Marquis, Jason >> | 26 | 2004 | R | 20 | 8 | 0 | 1 | 0 | 5.74 | .328 | 1.46 | 10.4 | 3.1 | 7.6 | 26.2 | 30 | 17 | 17 | 1 | 9 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2.85 |