| SP | Schilling, C.Schilling, Curt >> | 38 | 2004 | R | 46 | 9 | 9 | 4 | 5 | 3.44 | .274 | 1.09 | 7.6 | 2.3 | 6.4 | 70.2 | 59 | 35 | 27 | 5 | 18 | 50 | 4 | 0 | 0 | 2 | 0 | 3 | 2 | 3.40 |
| RP | Foulke, K.Foulke, Keith >> | 32 | 2004 | R | 62 | 17 | 0 | 1 | 2 | 4.30 | .296 | 1.26 | 9.8 | 1.6 | 5.9 | 23.0 | 25 | 13 | 11 | 1 | 4 | 15 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 2.78 |
| RP | Embree, A.Embree, Alan >> | 34 | 2004 | L | 33 | 15 | 0 | 2 | 1 | 2.70 | .213 | 0.77 | 4.7 | 2.3 | 6.3 | 23.1 | 12 | 7 | 7 | 0 | 6 | 16 | 0 | 2 | 1 | 0 | 0 | 1 | 0 | 2.52 |
| RP | Timlin, M.Timlin, Mike >> | 38 | 2004 | R | 27 | 10 | 0 | 0 | 1 | 2.13 | .333 | 1.42 | 8.3 | 5.3 | 4.5 | 12.2 | 11 | 3 | 3 | 1 | 7 | 6 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 5.08 |
| RP | DiNardo, L.DiNardo, Lenny >> | 25 | 2004 | L | 9 | 7 | 0 | 0 | 1 | 8.59 | .421 | 2.05 | 12.9 | 6.4 | 10.3 | 7.1 | 10 | 15 | 7 | 1 | 5 | 8 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 5.14 |
| SP | Martinez, P.Martinez, Pedro >> | 33 | 2004 | R | 42 | 8 | 8 | 4 | 3 | 3.63 | .328 | 1.46 | 9.0 | 4.2 | 6.6 | 52.0 | 52 | 25 | 21 | 3 | 24 | 38 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3.67 |
| SP | Wakefield, T.Wakefield, Tim >> | 38 | 2004 | R | 16 | 8 | 8 | 3 | 2 | 4.15 | .340 | 1.50 | 9.6 | 4.0 | 6.1 | 43.1 | 46 | 30 | 20 | 5 | 19 | 29 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 4.63 |
| RP | Mendoza, R.Mendoza, Ramiro >> | 32 | 2004 | R | 41 | 2 | 0 | 0 | 0 | 5.40 | .545 | 3.60 | 18.0 | 36.0 | 18.0 | 1.2 | 2 | 1 | 1 | 0 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11.00 |
| SP | Arroyo, B.Arroyo, Bronson >> | 27 | 2004 | R | 32 | 8 | 8 | 1 | 4 | 3.45 | .325 | 1.38 | 9.6 | 2.9 | 5.4 | 47.0 | 50 | 23 | 18 | 1 | 15 | 28 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3.23 |
| RP | Leskanic, C.Leskanic, Curt >> | 36 | 2004 | R | 13 | 2 | 0 | 0 | 0 | 9.00 | .357 | 1.67 | 6.0 | 9.0 | 3.0 | 3.0 | 2 | 3 | 3 | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9.67 |
| RP | Williamson, S.Williamson, Scott >> | 28 | 2004 | R | 73 | 2 | 0 | 0 | 0 | 15.00 | .471 | 2.67 | 12.0 | 12.0 | 3.0 | 3.0 | 4 | 5 | 5 | 1 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10.67 |