| SP | Sheets, B.Sheets, Ben # >> | 26 | 2004 | R | 97 | 7 | 7 | 4 | 1 | 4.87 | .311 | 1.35 | 9.6 | 2.7 | 8.4 | 44.1 | 47 | 24 | 24 | 11 | 13 | 41 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | 5.27 |
| SP | Hernandez, L.Hernandez, Livan >> | 29 | 2004 | R | 81 | 7 | 7 | 3 | 4 | 3.81 | .291 | 1.19 | 7.6 | 3.1 | 5.4 | 52.0 | 44 | 23 | 22 | 4 | 18 | 31 | 1 | 0 | 0 | 0 | 3 | 2 | 1 | 3.96 |
| SP | Harden, R.Harden, Rich >> | 23 | 2004 | R | 63 | 6 | 6 | 4 | 1 | 3.46 | .299 | 1.26 | 7.6 | 3.7 | 8.1 | 39.0 | 33 | 17 | 15 | 4 | 16 | 35 | 0 | 0 | 0 | 0 | 4 | 1 | 1 | 3.85 |
| SU | Cordero, F.Cordero, Francisco >> | 29 | 2004 | R | 56 | 9 | 0 | 0 | 0 | 2.25 | .273 | 1.13 | 6.8 | 3.4 | 9.0 | 8.0 | 6 | 2 | 2 | 0 | 3 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.13 |
| RP | Osuna, A.Osuna, Antonio >> | 31 | 2004 | R | 62 | 15 | 0 | 2 | 3 | 3.94 | .333 | 1.44 | 10.1 | 2.8 | 7.9 | 16.0 | 18 | 8 | 7 | 2 | 5 | 14 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4.00 |
| RP | Smoltz, J.Smoltz, John >> | 37 | 2004 | R | 75 | 13 | 0 | 1 | 1 | 3.21 | .311 | 1.36 | 10.3 | 1.9 | 9.0 | 14.0 | 16 | 5 | 5 | 2 | 3 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3.50 |
| RP | Timlin, M.Timlin, Mike >> | 38 | 2004 | R | 40 | 5 | 0 | 1 | 0 | 1.50 | .250 | 1.00 | 9.0 | 0.0 | 4.5 | 6.0 | 6 | 1 | 1 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.00 |
| RP | Miller, T.Miller, Trever >> | 31 | 2004 | L | 35 | 13 | 0 | 0 | 0 | 5.40 | .348 | 1.50 | 11.7 | 1.8 | 5.4 | 10.0 | 13 | 6 | 6 | 1 | 2 | 6 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4.00 |
| RP | Alvarez, W.Alvarez, Wilson >> | 34 | 2004 | L | 66 | 13 | 0 | 0 | 1 | 4.86 | .398 | 1.92 | 13.5 | 4.5 | 8.4 | 16.2 | 24 | 13 | 9 | 3 | 8 | 15 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 5.25 |