| SP | Loaiza, E.Loaiza, Esteban >> | 32 | 2003 | R | 89 | 24 | 24 | 7 | 11 | 4.60 | .310 | 1.33 | 9.1 | 2.9 | 7.3 | 144.2 | 145 | 75 | 74 | 21 | 47 | 117 | 0 | 0 | 0 | 0 | 12 | 3 | 3 | 4.31 |
| SP | Hernandez, L.Hernandez, Livan >> | 28 | 2003 | R | 72 | 22 | 22 | 6 | 13 | 7.09 | .370 | 1.72 | 11.9 | 3.6 | 5.5 | 119.1 | 157 | 96 | 94 | 24 | 48 | 73 | 1 | 0 | 0 | 0 | 7 | 5 | 2 | 5.73 |
| SP | Ortiz, R.Ortiz, Russ # >> | 29 | 2003 | R | 59 | 22 | 22 | 7 | 9 | 4.74 | .332 | 1.46 | 9.3 | 3.8 | 6.3 | 129.0 | 133 | 73 | 68 | 15 | 55 | 90 | 2 | 0 | 0 | 1 | 10 | 4 | 2 | 4.49 |
| SP | Lawrence, B.Lawrence, Brian # >> | 27 | 2003 | R | 52 | 21 | 21 | 5 | 12 | 6.11 | .356 | 1.63 | 11.0 | 3.7 | 6.8 | 113.1 | 138 | 83 | 77 | 19 | 47 | 86 | 1 | 0 | 0 | 1 | 7 | 3 | 0 | 4.99 |
| RP | Spooneybarger, T.Spooneybarger, Tim >> | 24 | 2003 | R | 91 | 64 | 0 | 4 | 3 | 3.38 | .278 | 1.11 | 7.1 | 2.9 | 6.3 | 96.0 | 76 | 36 | 36 | 9 | 31 | 67 | 0 | 4 | 3 | 0 | 0 | 4 | 5 | 3.92 |
| RP | Benitez, A.Benitez, Armando >> | 31 | 2003 | R | 44 | 48 | 0 | 0 | 5 | 6.75 | .327 | 1.46 | 9.5 | 3.8 | 9.5 | 50.2 | 53 | 39 | 38 | 7 | 21 | 53 | 0 | 2 | 1 | 0 | 0 | 0 | 1 | 3.96 |
| RP | Wheeler, D.Wheeler, Dan >> | 26 | 2003 | R | 30 | 40 | 0 | 2 | 1 | 4.87 | .348 | 1.58 | 10.0 | 4.3 | 7.8 | 44.1 | 49 | 24 | 24 | 7 | 21 | 38 | 0 | 3 | 1 | 0 | 0 | 1 | 3 | 4.84 |
| RP | Colome, J.Colome, Jesus >> | 26 | 2003 | R | 19 | 37 | 0 | 0 | 2 | 6.44 | .420 | 2.12 | 10.8 | 8.5 | 9.0 | 36.1 | 43 | 28 | 26 | 5 | 34 | 36 | 0 | 1 | 3 | 0 | 0 | 2 | 2 | 5.81 |
| SP | Ishii, K.Ishii, Kazuhisa >> | 30 | 2003 | L | 34 | 0 | 0 | 0 | 0 | - | .000 | - | - | - | - | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |