| SP | Martinez, P.Martinez, Pedro >> | 33 | 2004 | R | 92 | 12 | 12 | 3 | 3 | 3.79 | .298 | 1.21 | 8.2 | 2.7 | 8.0 | 71.1 | 65 | 35 | 30 | 6 | 21 | 63 | 0 | 0 | 0 | 0 | 8 | 5 | 1 | 3.42 |
| SP | Pavano, C.Pavano, Carl >> | 28 | 2004 | R | 77 | 12 | 12 | 4 | 3 | 5.07 | .288 | 1.17 | 8.0 | 2.5 | 5.6 | 71.0 | 63 | 40 | 40 | 12 | 20 | 44 | 1 | 0 | 0 | 1 | 5 | 3 | 2 | 4.93 |
| SP | Westbrook, J.Westbrook, Jake >> | 27 | 2004 | R | 64 | 12 | 12 | 6 | 5 | 5.06 | .319 | 1.41 | 9.6 | 3.1 | 6.0 | 64.0 | 68 | 38 | 36 | 10 | 22 | 43 | 0 | 0 | 0 | 0 | 6 | 0 | 1 | 4.72 |
| SP | Vazquez, J.Vazquez, Javier >> | 28 | 2004 | R | 62 | 12 | 12 | 5 | 2 | 4.48 | .339 | 1.52 | 9.2 | 4.7 | 6.9 | 60.1 | 61 | 35 | 30 | 7 | 31 | 46 | 0 | 0 | 0 | 0 | 6 | 1 | 2 | 4.58 |
| CL | Rincon, J.Rincon, Juan >> | 25 | 2004 | R | 94 | 33 | 0 | 1 | 2 | 1.57 | .275 | 1.08 | 6.1 | 3.7 | 9.0 | 34.1 | 23 | 6 | 6 | 0 | 14 | 34 | 0 | 17 | 2 | 0 | 0 | 2 | 1 | 2.41 |
| SU | Foulke, K.Foulke, Keith >> | 32 | 2004 | R | 87 | 30 | 0 | 2 | 0 | 0.26 | .184 | 0.62 | 4.5 | 1.1 | 5.3 | 34.0 | 17 | 1 | 1 | 0 | 4 | 20 | 0 | 1 | 1 | 0 | 0 | 2 | 3 | 2.35 |
| RP | Moreno, O.Moreno, Orber # >> | 27 | 2004 | R | 73 | 35 | 0 | 4 | 2 | 4.20 | .303 | 1.28 | 7.0 | 4.7 | 5.6 | 40.2 | 31 | 19 | 19 | 4 | 21 | 25 | 0 | 0 | 2 | 0 | 0 | 1 | 3 | 4.70 |
| RP | Vizcaino, L.Vizcaino, Luis >> | 30 | 2004 | R | 72 | 30 | 0 | 1 | 4 | 2.95 | .274 | 1.11 | 8.1 | 2.1 | 7.6 | 39.2 | 35 | 15 | 13 | 5 | 9 | 33 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 3.74 |
| RP | Urbina, U.Urbina, Ugueth >> | 30 | 2004 | R | 63 | 29 | 0 | 2 | 0 | 3.66 | .333 | 1.44 | 7.0 | 5.9 | 8.2 | 32.0 | 25 | 13 | 13 | 3 | 21 | 29 | 0 | 1 | 1 | 0 | 0 | 2 | 1 | 4.56 |
| RP | Cormier, R.Cormier, Rheal >> | 37 | 2004 | L | 61 | 32 | 0 | 1 | 3 | 6.21 | .333 | 1.47 | 9.3 | 4.1 | 6.0 | 33.1 | 34 | 25 | 23 | 6 | 15 | 22 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 5.48 |