| SP | Vazquez, J.Vazquez, Javier >> | 27 | 2003 | R | 92 | 23 | 23 | 9 | 6 | 3.51 | .301 | 1.25 | 8.1 | 3.2 | 8.6 | 143.2 | 129 | 62 | 56 | 15 | 51 | 136 | 0 | 0 | 0 | 0 | 14 | 6 | 4 | 3.66 |
| SP | Pineiro, J.Pineiro, Joel >> | 25 | 2003 | R | 64 | 23 | 23 | 7 | 9 | 4.00 | .325 | 1.39 | 9.1 | 3.4 | 6.3 | 139.2 | 141 | 69 | 62 | 17 | 53 | 97 | 0 | 0 | 0 | 0 | 12 | 8 | 4 | 4.51 |
| SP | Stephenson, G.Stephenson, Garrett # >> | 31 | 2003 | R | 36 | 22 | 22 | 8 | 9 | 4.40 | .339 | 1.51 | 9.4 | 4.3 | 5.6 | 110.1 | 115 | 60 | 54 | 10 | 52 | 68 | 0 | 0 | 0 | 0 | 6 | 3 | 1 | 4.45 |
| SP | Batista, M.Batista, Miguel >> | 32 | 2003 | R | 26 | 23 | 22 | 3 | 10 | 5.77 | .382 | 1.80 | 12.2 | 4.0 | 6.1 | 101.1 | 137 | 71 | 65 | 10 | 45 | 69 | 0 | 0 | 0 | 0 | 1 | 6 | 3 | 4.44 |
| RP | Smoltz, J.Smoltz, John >> | 36 | 2003 | R | 93 | 63 | 0 | 7 | 6 | 2.87 | .266 | 1.05 | 7.6 | 1.9 | 9.4 | 94.0 | 79 | 35 | 30 | 5 | 20 | 98 | 0 | 3 | 4 | 0 | 0 | 3 | 2 | 2.34 |
| RP | Bradford, C.Bradford, Chad >> | 29 | 2003 | R | 48 | 52 | 0 | 0 | 3 | 5.00 | .337 | 1.41 | 9.3 | 3.4 | 6.0 | 63.0 | 65 | 35 | 35 | 8 | 24 | 42 | 0 | 6 | 2 | 0 | 0 | 7 | 0 | 4.79 |
| RP | Worrell, T.Worrell, Tim >> | 36 | 2003 | R | 34 | 51 | 0 | 2 | 2 | 4.42 | .349 | 1.59 | 10.1 | 4.3 | 5.5 | 59.0 | 66 | 30 | 29 | 8 | 28 | 36 | 0 | 6 | 1 | 0 | 0 | 1 | 2 | 5.02 |
| RP | Spurling, C.Spurling, Chris >> | 26 | 2003 | R | 23 | 35 | 0 | 1 | 2 | 4.43 | .307 | 1.25 | 9.7 | 1.8 | 7.2 | 40.2 | 43 | 25 | 20 | 9 | 8 | 32 | 0 | 3 | 1 | 0 | 0 | 3 | 2 | 5.15 |
| SP | Hampton, M.Hampton, Mike >> | 31 | 2003 | L | 19 | 19 | 0 | 0 | 2 | 7.54 | .404 | 2.03 | 13.1 | 5.7 | 5.7 | 22.2 | 32 | 22 | 19 | 3 | 14 | 14 | 0 | 3 | 0 | 0 | 0 | 0 | 2 | 5.41 |