| SP | Martinez, P.Martinez, Pedro >> | 33 | 2003 | R | 99 | 11 | 11 | 6 | 1 | 3.10 | .277 | 1.14 | 7.3 | 3.0 | 10.0 | 78.1 | 63 | 27 | 27 | 6 | 26 | 87 | 1 | 0 | 0 | 0 | 10 | 1 | 2 | 2.81 |
| SP | Arroyo, B.Arroyo, Bronson >> | 27 | 2004 | R | 78 | 11 | 11 | 4 | 4 | 6.97 | .380 | 1.76 | 12.7 | 3.4 | 7.6 | 51.2 | 72 | 40 | 40 | 8 | 19 | 43 | 0 | 0 | 0 | 0 | 4 | 4 | 0 | 4.71 |
| SP | Wakefield, T.Wakefield, Tim >> | 38 | 2003 | R | 62 | 11 | 11 | 5 | 5 | 4.55 | .319 | 1.38 | 7.9 | 4.6 | 6.1 | 65.1 | 57 | 33 | 33 | 12 | 33 | 44 | 0 | 0 | 0 | 0 | 5 | 2 | 1 | 5.66 |
| SP | Fossum, C.Fossum, Casey >> | 26 | 2003 | L | 60 | 11 | 11 | 3 | 3 | 6.10 | .324 | 1.44 | 10.9 | 2.3 | 7.7 | 48.2 | 58 | 33 | 33 | 13 | 12 | 41 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 5.56 |
| SP | Burkett, J.Burkett, John >> | 40 | 2003 | R | 32 | 10 | 10 | 4 | 4 | 6.39 | .359 | 1.64 | 11.0 | 3.9 | 4.8 | 49.1 | 60 | 35 | 35 | 10 | 21 | 26 | 0 | 0 | 0 | 0 | 4 | 2 | 0 | 6.00 |
| CL | Kim, B.Kim, Byung-Hyun >> | 25 | 2003 | R | 83 | 27 | 0 | 0 | 3 | 6.99 | .388 | 1.87 | 12.5 | 4.5 | 8.4 | 28.1 | 39 | 22 | 22 | 5 | 14 | 26 | 0 | 12 | 1 | 0 | 0 | 1 | 0 | 5.07 |
| SU | Mendoza, R.Mendoza, Ramiro >> | 32 | 2004 | R | 82 | 24 | 0 | 0 | 2 | 6.66 | .364 | 1.71 | 11.9 | 4.0 | 2.9 | 25.2 | 33 | 19 | 19 | 8 | 11 | 8 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 7.84 |
| RP | Timlin, M.Timlin, Mike >> | 38 | 2003 | R | 75 | 35 | 0 | 2 | 1 | 6.43 | .333 | 1.50 | 11.1 | 2.4 | 7.1 | 42.0 | 52 | 33 | 30 | 6 | 11 | 33 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4.07 |
| RP | Williamson, S.Williamson, Scott >> | 28 | 2003 | R | 74 | 33 | 0 | 3 | 1 | 4.67 | .333 | 1.41 | 8.7 | 4.2 | 9.8 | 34.2 | 33 | 18 | 18 | 2 | 16 | 37 | 0 | 0 | 0 | 0 | 0 | 3 | 1 | 3.26 |
| RP | Embree, A.Embree, Alan >> | 34 | 2004 | L | 73 | 21 | 0 | 0 | 3 | 7.01 | .398 | 1.99 | 14.4 | 4.0 | 7.6 | 25.2 | 40 | 20 | 20 | 4 | 11 | 21 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 4.72 |