| SP | Loaiza, E.Loaiza, Esteban >> | 32 | 2003 | R | 89 | 8 | 8 | 3 | 1 | 3.40 | .292 | 1.24 | 7.9 | 3.4 | 6.5 | 55.2 | 48 | 21 | 21 | 5 | 21 | 40 | 0 | 0 | 0 | 0 | 5 | 0 | 1 | 3.87 |
| SP | Miller, W.Miller, Wade >> | 27 | 2003 | R | 58 | 8 | 8 | 4 | 3 | 4.02 | .322 | 1.34 | 7.9 | 4.2 | 7.1 | 47.0 | 41 | 22 | 21 | 5 | 22 | 37 | 0 | 0 | 0 | 0 | 5 | 4 | 1 | 4.47 |
| SP | Wakefield, T.Wakefield, Tim >> | 37 | 2003 | R | 47 | 8 | 8 | 3 | 2 | 7.09 | .359 | 1.68 | 10.8 | 4.4 | 7.2 | 39.1 | 47 | 31 | 31 | 9 | 19 | 31 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 5.87 |
| RP | Spooneybarger, T.Spooneybarger, Tim >> | 24 | 2003 | R | 91 | 22 | 0 | 2 | 0 | 2.83 | .276 | 1.11 | 6.4 | 3.6 | 5.4 | 35.0 | 25 | 11 | 11 | 4 | 14 | 21 | 0 | 1 | 1 | 0 | 0 | 1 | 4 | 4.57 |
| RP | Benitez, A.Benitez, Armando >> | 31 | 2003 | R | 44 | 19 | 0 | 1 | 2 | 1.77 | .344 | 1.57 | 8.1 | 6.3 | 10.4 | 20.1 | 18 | 7 | 4 | 0 | 14 | 23 | 0 | 3 | 1 | 0 | 0 | 0 | 1 | 2.80 |
| RP | Wheeler, D.Wheeler, Dan >> | 26 | 2003 | R | 30 | 16 | 0 | 0 | 0 | 1.19 | .218 | 0.84 | 4.5 | 3.3 | 6.1 | 22.2 | 11 | 4 | 3 | 3 | 8 | 15 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 4.50 |
| RP | Colome, J.Colome, Jesus >> | 26 | 2003 | R | 19 | 14 | 0 | 1 | 1 | 4.50 | .341 | 1.56 | 8.0 | 6.0 | 8.5 | 18.0 | 16 | 9 | 9 | 4 | 12 | 17 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 6.00 |
| SP | Zambrano, V.Zambrano, Victor >> | 28 | 2003 | R | 33 | 2 | 0 | 0 | 0 | 13.50 | .400 | 2.00 | 13.5 | 4.5 | 0.0 | 2.0 | 3 | 3 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 11.00 |