| SP | Schmidt, J.Schmidt, Jason † >> | 31 | 2004 | R | 98 | 36 | 36 | 13 | 13 | 3.76 | .313 | 1.35 | 7.9 | 4.3 | 8.6 | 251.0 | 220 | 110 | 105 | 22 | 120 | 240 | 3 | 0 | 0 | 2 | 21 | 3 | 3 | 3.70 |
| SP | Garcia, F.Garcia, Freddy >> | 29 | 2004 | R | 85 | 34 | 34 | 14 | 14 | 4.55 | .338 | 1.51 | 9.9 | 3.7 | 7.1 | 223.2 | 245 | 124 | 113 | 32 | 92 | 176 | 1 | 0 | 0 | 1 | 18 | 5 | 8 | 4.59 |
| SP | Maddux, G.Maddux, Greg >> | 38 | 2004 | R | 71 | 33 | 33 | 14 | 10 | 5.61 | .348 | 1.57 | 11.3 | 2.8 | 5.7 | 191.0 | 240 | 128 | 119 | 28 | 60 | 121 | 0 | 0 | 0 | 0 | 15 | 6 | 3 | 4.68 |
| SP | Sabathia, C.Sabathia, CC >> | 24 | 2004 | L | 60 | 33 | 33 | 15 | 10 | 4.13 | .325 | 1.42 | 9.0 | 3.8 | 5.9 | 209.1 | 208 | 100 | 96 | 22 | 89 | 138 | 0 | 0 | 0 | 0 | 18 | 5 | 5 | 4.40 |
| SP | Morris, M.Morris, Matt >> | 30 | 2004 | R | 48 | 34 | 31 | 10 | 11 | 5.18 | .323 | 1.40 | 10.0 | 2.6 | 6.1 | 191.0 | 212 | 113 | 110 | 28 | 55 | 129 | 0 | 1 | 0 | 0 | 15 | 7 | 2 | 4.53 |
| RP | Benitez, A.Benitez, Armando >> | 32 | 2004 | R | 96 | 100 | 0 | 9 | 4 | 2.66 | .273 | 1.09 | 6.4 | 3.4 | 6.9 | 145.1 | 103 | 44 | 43 | 14 | 55 | 111 | 0 | 9 | 4 | 0 | 0 | 6 | 0 | 3.99 |
| RP | Hawkins, L.Hawkins, LaTroy >> | 32 | 2004 | R | 78 | 89 | 0 | 2 | 11 | 4.34 | .294 | 1.21 | 9.2 | 1.8 | 6.2 | 101.2 | 103 | 53 | 49 | 15 | 20 | 70 | 0 | 16 | 6 | 0 | 0 | 4 | 1 | 4.26 |
| RP | Smoltz, J.Smoltz, John >> | 37 | 2004 | R | 75 | 69 | 0 | 5 | 3 | 3.81 | .289 | 1.20 | 8.3 | 2.5 | 8.2 | 82.2 | 76 | 35 | 35 | 10 | 23 | 75 | 0 | 5 | 3 | 0 | 0 | 2 | 3 | 3.67 |
| RP | Francisco, F.Francisco, Frank >> | 25 | 2004 | R | 71 | 45 | 0 | 2 | 3 | 5.44 | .349 | 1.61 | 9.4 | 5.3 | 8.6 | 49.2 | 51 | 30 | 30 | 9 | 29 | 47 | 0 | 3 | 1 | 0 | 0 | 0 | 4 | 5.24 |