| SP | Schilling, C.Schilling, Curt >> | 38 | 2004 | R | 94 | 19 | 19 | 3 | 11 | 4.37 | .298 | 1.25 | 9.0 | 2.3 | 5.9 | 134.0 | 134 | 65 | 65 | 19 | 34 | 88 | 5 | 0 | 0 | 1 | 9 | 3 | 0 | 4.36 |
| SP | Clement, M.Clement, Matt >> | 30 | 2004 | R | 83 | 18 | 18 | 8 | 5 | 4.02 | .322 | 1.38 | 8.0 | 4.5 | 8.9 | 107.1 | 95 | 49 | 48 | 11 | 53 | 106 | 0 | 0 | 0 | 0 | 10 | 5 | 3 | 3.98 |
| SP | Escobar, K.Escobar, Kelvim >> | 28 | 2004 | R | 74 | 18 | 18 | 6 | 11 | 6.23 | .362 | 1.69 | 12.1 | 3.2 | 6.6 | 99.2 | 133 | 73 | 69 | 17 | 35 | 73 | 0 | 0 | 0 | 0 | 9 | 2 | 4 | 4.88 |
| SP | Mussina, M.Mussina, Mike >> | 36 | 2004 | R | 42 | 18 | 18 | 5 | 8 | 6.23 | .358 | 1.63 | 11.0 | 3.7 | 6.0 | 91.0 | 111 | 66 | 63 | 12 | 37 | 61 | 0 | 0 | 0 | 0 | 8 | 4 | 4 | 4.73 |
| RP | Francisco, F.Francisco, Frank >> | 25 | 2004 | R | 71 | 41 | 0 | 0 | 3 | 2.89 | .385 | 1.79 | 8.5 | 7.8 | 9.0 | 37.1 | 35 | 12 | 12 | 1 | 32 | 37 | 0 | 10 | 2 | 0 | 0 | 3 | 2 | 4.19 |
| RP | Shouse, B.Shouse, Brian >> | 36 | 2004 | L | 64 | 31 | 0 | 0 | 1 | 2.70 | .262 | 1.04 | 6.3 | 3.3 | 8.5 | 36.2 | 25 | 11 | 11 | 3 | 13 | 34 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 3.36 |
| RP | Carrara, G.Carrara, Giovanni >> | 36 | 2004 | R | 58 | 25 | 0 | 2 | 0 | 5.58 | .361 | 1.63 | 9.6 | 5.4 | 6.9 | 30.2 | 32 | 20 | 19 | 5 | 18 | 23 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 5.63 |