| SP | Hernandez, L.Hernandez, Livan # >> | 29 | 2004 | R | 81 | 33 | 33 | 14 | 10 | 4.63 | .314 | 1.37 | 9.7 | 2.7 | 6.5 | 213.2 | 229 | 114 | 110 | 25 | 63 | 153 | 4 | 0 | 0 | 3 | 15 | 2 | 4 | 4.00 |
| SP | Glavine, T.Glavine, Tom >> | 38 | 2004 | L | 54 | 32 | 32 | 10 | 12 | 5.33 | .331 | 1.46 | 9.8 | 3.4 | 6.0 | 179.0 | 194 | 118 | 106 | 30 | 67 | 119 | 1 | 0 | 0 | 0 | 15 | 5 | 0 | 5.06 |
| SP | Mussina, M.Mussina, Mike >> | 36 | 2004 | R | 42 | 26 | 24 | 7 | 10 | 6.54 | .336 | 1.49 | 10.8 | 2.7 | 8.0 | 130.2 | 156 | 101 | 95 | 21 | 39 | 115 | 0 | 0 | 0 | 0 | 8 | 3 | 3 | 4.30 |
| CL | Wagner, B.Wagner, Billy † >> | 33 | 2004 | L | 100 | 61 | 0 | 7 | 8 | 2.31 | .242 | 0.95 | 6.7 | 1.8 | 8.8 | 74.0 | 55 | 21 | 19 | 7 | 15 | 72 | 0 | 32 | 2 | 0 | 0 | 1 | 0 | 2.93 |
| SU | Linebrink, S.Linebrink, Scott >> | 28 | 2004 | R | 89 | 71 | 0 | 2 | 3 | 3.82 | .296 | 1.24 | 7.1 | 4.1 | 6.7 | 77.2 | 61 | 33 | 33 | 10 | 35 | 57 | 0 | 5 | 2 | 0 | 0 | 2 | 1 | 4.65 |
| RP | Mota, G.Mota, Guillermo >> | 31 | 2004 | R | 78 | 80 | 0 | 1 | 0 | 3.97 | .306 | 1.29 | 8.2 | 3.4 | 7.3 | 79.1 | 72 | 38 | 35 | 12 | 30 | 64 | 0 | 0 | 1 | 0 | 0 | 3 | 2 | 4.61 |
| RP | Romero, J.Romero, J.C. >> | 28 | 2004 | L | 50 | 78 | 0 | 5 | 2 | 3.26 | .331 | 1.47 | 9.5 | 3.9 | 7.7 | 60.2 | 63 | 23 | 22 | 4 | 26 | 51 | 0 | 0 | 1 | 0 | 0 | 1 | 6 | 3.52 |
| RP | Miller, T.Miller, Trever >> | 31 | 2004 | L | 35 | 70 | 0 | 2 | 2 | 4.13 | .289 | 1.19 | 7.8 | 3.0 | 7.3 | 69.2 | 60 | 33 | 32 | 8 | 23 | 56 | 0 | 5 | 5 | 0 | 0 | 2 | 2 | 3.97 |
| RP | Foulke, K.Foulke, Keith # >> | 32 | 2004 | R | 87 | 45 | 0 | 5 | 2 | 4.53 | .303 | 1.29 | 8.8 | 2.9 | 8.0 | 53.2 | 52 | 27 | 27 | 5 | 17 | 47 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3.47 |
| RP | Timlin, M.Timlin, Mike >> | 38 | 2004 | R | 40 | 31 | 0 | 0 | 4 | 6.82 | .389 | 1.88 | 13.6 | 3.3 | 6.3 | 33.0 | 50 | 27 | 25 | 9 | 12 | 23 | 0 | 0 | 2 | 0 | 0 | 1 | 1 | 6.33 |