| SP | Beckett, J.Beckett, Josh >> | 24 | 2004 | R | 97 | 57 | 57 | 25 | 16 | 3.49 | .288 | 1.20 | 8.6 | 2.3 | 6.3 | 350.2 | 333 | 152 | 136 | 25 | 89 | 245 | 3 | 0 | 0 | 2 | 34 | 4 | 6 | 3.33 |
| SP | Garcia, F.Garcia, Freddy >> | 28 | 2004 | R | 95 | 58 | 58 | 23 | 19 | 4.03 | .300 | 1.27 | 8.5 | 2.9 | 6.4 | 379.2 | 357 | 176 | 170 | 45 | 124 | 268 | 7 | 0 | 0 | 2 | 29 | 7 | 10 | 4.17 |
| SP | Arroyo, B.Arroyo, Bronson >> | 27 | 2004 | R | 92 | 57 | 57 | 21 | 19 | 4.82 | .336 | 1.48 | 10.3 | 3.1 | 6.5 | 313.2 | 357 | 192 | 168 | 40 | 108 | 225 | 1 | 0 | 0 | 1 | 26 | 12 | 5 | 4.37 |
| SP | Rusch, G.Rusch, Glendon >> | 30 | 2004 | L | 87 | 47 | 45 | 6 | 13 | 6.70 | .368 | 1.73 | 11.8 | 3.9 | 6.0 | 166.2 | 217 | 127 | 124 | 34 | 72 | 110 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 5.67 |
| RP | Vizcaino, L.Vizcaino, Luis >> | 30 | 2004 | R | 94 | 151 | 0 | 9 | 10 | 5.31 | .317 | 1.37 | 9.0 | 3.3 | 6.2 | 167.2 | 167 | 99 | 99 | 34 | 62 | 115 | 0 | 17 | 5 | 0 | 0 | 4 | 10 | 5.46 |
| RP | Alvarez, W.Alvarez, Wilson >> | 34 | 2004 | L | 92 | 146 | 0 | 8 | 9 | 5.13 | .350 | 1.58 | 11.0 | 3.3 | 7.2 | 203.1 | 248 | 117 | 116 | 34 | 74 | 163 | 0 | 5 | 6 | 0 | 0 | 6 | 5 | 4.75 |
| RP | Cormier, R.Cormier, Rheal >> | 37 | 2004 | L | 89 | 132 | 0 | 7 | 9 | 4.27 | .285 | 1.18 | 8.0 | 2.7 | 6.6 | 105.1 | 93 | 53 | 50 | 19 | 31 | 77 | 0 | 9 | 4 | 0 | 0 | 2 | 5 | 4.83 |
| RP | Speier, J.Speier, Justin >> | 31 | 2004 | R | 88 | 90 | 0 | 9 | 5 | 3.29 | .296 | 1.23 | 7.8 | 3.3 | 5.6 | 101.1 | 88 | 38 | 37 | 11 | 37 | 63 | 0 | 10 | 2 | 0 | 0 | 3 | 2 | 4.36 |
| SU | Mercker, K.Mercker, Kent >> | 36 | 2004 | L | 95 | 137 | 0 | 7 | 10 | 2.33 | .280 | 1.15 | 6.4 | 4.0 | 6.8 | 169.2 | 120 | 50 | 44 | 7 | 75 | 127 | 0 | 32 | 7 | 0 | 0 | 3 | 5 | 3.42 |
| CL | Mota, G.Mota, Guillermo >> | 31 | 2004 | R | 98 | 136 | 0 | 8 | 11 | 3.12 | .271 | 1.12 | 7.6 | 2.5 | 6.4 | 201.2 | 169 | 77 | 70 | 17 | 56 | 143 | 0 | 21 | 14 | 0 | 0 | 0 | 10 | 3.51 |