| SP | Santana, J.Santana, Johan >> | 25 | 2004 | L | 99 | 12 | 12 | 3 | 8 | 4.48 | .303 | 1.24 | 8.8 | 2.4 | 9.7 | 78.1 | 76 | 49 | 39 | 15 | 21 | 84 | 1 | 0 | 0 | 0 | 6 | 5 | 1 | 4.35 |
| SP | Williams, J.Williams, Jerome >> | 23 | 2004 | R | 58 | 12 | 12 | 2 | 6 | 6.22 | .355 | 1.62 | 10.5 | 4.1 | 5.6 | 59.1 | 69 | 46 | 41 | 14 | 27 | 37 | 0 | 0 | 0 | 0 | 3 | 2 | 1 | 6.31 |
| SP | Arroyo, B.Arroyo, Bronson >> | 27 | 2004 | R | 79 | 12 | 12 | 1 | 4 | 5.88 | .373 | 1.73 | 12.1 | 3.5 | 6.1 | 52.0 | 70 | 51 | 34 | 10 | 20 | 35 | 0 | 0 | 0 | 0 | 1 | 3 | 2 | 5.48 |
| SP | Maddux, G.Maddux, Greg >> | 38 | 2004 | R | 71 | 12 | 11 | 2 | 8 | 6.12 | .340 | 1.50 | 10.7 | 3.0 | 6.0 | 64.2 | 76 | 50 | 44 | 14 | 21 | 43 | 0 | 0 | 0 | 0 | 4 | 3 | 2 | 5.63 |
| RP | Hawkins, L.Hawkins, LaTroy >> | 32 | 2004 | R | 78 | 34 | 0 | 0 | 3 | 4.79 | .323 | 1.43 | 9.8 | 3.3 | 8.5 | 35.2 | 38 | 22 | 19 | 5 | 13 | 33 | 0 | 2 | 1 | 0 | 0 | 0 | 1 | 4.09 |
| RP | Speier, J.Speier, Justin >> | 31 | 2004 | R | 53 | 27 | 0 | 1 | 1 | 3.73 | .319 | 1.34 | 9.9 | 2.3 | 7.8 | 31.1 | 34 | 15 | 13 | 3 | 8 | 27 | 0 | 1 | 0 | 0 | 0 | 2 | 2 | 3.48 |
| RP | Harper, T.Harper, Travis >> | 28 | 2004 | R | 65 | 21 | 0 | 0 | 1 | 3.76 | .363 | 1.71 | 9.7 | 5.9 | 5.5 | 26.1 | 28 | 14 | 11 | 3 | 17 | 16 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 5.23 |
| SP | Weaver, J.Weaver, Jeff >> | 28 | 2004 | R | 51 | 12 | 12 | 3 | 4 | 4.67 | .331 | 1.49 | 9.9 | 3.5 | 5.7 | 71.1 | 78 | 46 | 37 | 10 | 28 | 45 | 0 | 0 | 0 | 0 | 5 | 0 | 2 | 4.75 |