| SP | Martinez, P.Martinez, Pedro >> | 33 | 2004 | R | 92 | 18 | 18 | 5 | 6 | 4.16 | .328 | 1.45 | 10.1 | 3.0 | 9.3 | 106.0 | 119 | 54 | 49 | 10 | 35 | 110 | 1 | 0 | 0 | 0 | 6 | 1 | 1 | 3.17 |
| SP | Wright, J.Wright, Jaret >> | 29 | 2004 | R | 80 | 19 | 19 | 5 | 5 | 5.20 | .341 | 1.53 | 9.2 | 4.6 | 6.9 | 91.2 | 93 | 54 | 53 | 9 | 47 | 70 | 0 | 0 | 0 | 0 | 4 | 2 | 2 | 4.36 |
| SP | Lopez, R.Lopez, Rodrigo >> | 29 | 2004 | R | 65 | 18 | 18 | 3 | 6 | 5.42 | .326 | 1.44 | 10.4 | 2.6 | 5.6 | 76.1 | 88 | 46 | 46 | 8 | 22 | 47 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 4.04 |
| RP | Rivera, M.Rivera, Mariano >> | 35 | 2004 | R | 79 | 57 | 0 | 3 | 1 | 2.57 | .322 | 1.39 | 9.5 | 3.2 | 7.3 | 80.2 | 84 | 28 | 23 | 5 | 28 | 65 | 0 | 6 | 4 | 0 | 0 | 3 | 0 | 3.35 |
| RP | Hawkins, L.Hawkins, LaTroy >> | 32 | 2004 | R | 78 | 54 | 0 | 4 | 0 | 3.32 | .284 | 1.16 | 7.8 | 2.7 | 7.3 | 59.2 | 51 | 23 | 22 | 5 | 18 | 48 | 0 | 3 | 4 | 0 | 0 | 2 | 1 | 3.49 |
| RP | Moreno, O.Moreno, Orber >> | 27 | 2004 | R | 73 | 49 | 0 | 5 | 5 | 4.35 | .343 | 1.53 | 10.5 | 3.3 | 5.2 | 62.0 | 72 | 30 | 30 | 3 | 23 | 36 | 0 | 7 | 1 | 0 | 0 | 2 | 4 | 3.68 |
| RP | Vizcaino, L.Vizcaino, Luis >> | 30 | 2004 | R | 72 | 42 | 0 | 4 | 1 | 5.13 | .321 | 1.38 | 7.0 | 5.5 | 6.2 | 54.1 | 42 | 31 | 31 | 6 | 33 | 37 | 0 | 5 | 2 | 0 | 0 | 2 | 7 | 5.02 |