| SP | Clemens, R.Clemens, Roger † >> | 42 | 2004 | R | 95 | 27 | 27 | 10 | 8 | 3.12 | .302 | 1.26 | 7.3 | 4.0 | 7.6 | 178.2 | 145 | 68 | 62 | 9 | 80 | 151 | 1 | 0 | 0 | 1 | 17 | 7 | 4 | 3.43 |
| SP | Wright, J.Wright, Jaret # >> | 29 | 2004 | R | 80 | 27 | 27 | 4 | 12 | 5.64 | .361 | 1.65 | 11.3 | 3.6 | 6.7 | 127.2 | 160 | 82 | 80 | 20 | 51 | 94 | 0 | 0 | 0 | 0 | 1 | 5 | 1 | 4.89 |
| SP | Rusch, G.Rusch, Glendon >> | 30 | 2004 | L | 73 | 26 | 26 | 4 | 5 | 4.20 | .301 | 1.27 | 9.0 | 2.4 | 5.3 | 120.0 | 120 | 57 | 56 | 19 | 32 | 70 | 0 | 0 | 0 | 0 | 1 | 3 | 1 | 4.77 |
| SP | Morris, M.Morris, Matt >> | 30 | 2004 | R | 48 | 25 | 25 | 8 | 6 | 4.63 | .312 | 1.32 | 8.6 | 3.4 | 6.4 | 155.2 | 148 | 83 | 80 | 28 | 58 | 111 | 0 | 0 | 0 | 0 | 12 | 6 | 2 | 5.15 |
| RP | Calero, K.Calero, Kiko >> | 29 | 2004 | R | 100 | 73 | 0 | 6 | 1 | 3.12 | .281 | 1.15 | 7.4 | 2.9 | 8.5 | 104.0 | 86 | 38 | 36 | 10 | 34 | 98 | 0 | 3 | 1 | 0 | 0 | 2 | 0 | 3.40 |
| RP | Donnelly, B.Donnelly, Brendan >> | 33 | 2004 | R | 82 | 75 | 0 | 3 | 4 | 4.38 | .329 | 1.43 | 8.9 | 4.0 | 9.5 | 98.2 | 97 | 50 | 48 | 15 | 44 | 103 | 0 | 4 | 6 | 0 | 0 | 4 | 0 | 4.36 |
| RP | Miller, M.Miller, Matt >> | 33 | 2004 | R | 77 | 66 | 0 | 7 | 3 | 3.76 | .291 | 1.21 | 7.2 | 3.7 | 7.8 | 91.0 | 73 | 38 | 38 | 6 | 37 | 79 | 0 | 4 | 3 | 0 | 0 | 2 | 3 | 3.41 |
| RP | Cormier, R.Cormier, Rheal >> | 37 | 2004 | L | 61 | 60 | 0 | 5 | 6 | 4.02 | .304 | 1.27 | 9.0 | 2.5 | 6.6 | 71.2 | 71 | 33 | 32 | 15 | 20 | 52 | 0 | 8 | 4 | 0 | 0 | 3 | 2 | 5.25 |
| RP | Bottalico, R.Bottalico, Ricky >> | 35 | 2004 | R | 57 | 54 | 0 | 7 | 6 | 5.29 | .321 | 1.37 | 9.3 | 3.1 | 7.4 | 66.1 | 68 | 39 | 39 | 7 | 23 | 54 | 0 | 3 | 2 | 0 | 0 | 3 | 0 | 3.92 |
| SP | Perez, O.Perez, Odalis >> | 27 | 2004 | L | 86 | 31 | 0 | 2 | 3 | 6.39 | .333 | 1.47 | 9.5 | 3.8 | 5.0 | 38.0 | 40 | 27 | 27 | 8 | 16 | 21 | 0 | 6 | 1 | 0 | 0 | 1 | 0 | 5.97 |