| SP | Hudson, T.Hudson, Tim # >> | 29 | 2003 | R | 94 | 11 | 11 | 4 | 3 | 4.85 | .336 | 1.48 | 11.4 | 2.0 | 7.0 | 72.1 | 91 | 39 | 39 | 9 | 16 | 56 | 1 | 0 | 0 | 0 | 4 | 3 | 2 | 3.86 |
| SP | Mulder, M.Mulder, Mark >> | 27 | 2003 | L | 83 | 11 | 11 | 3 | 5 | 4.50 | .333 | 1.40 | 10.5 | 2.1 | 6.4 | 70.0 | 82 | 36 | 35 | 9 | 16 | 50 | 2 | 0 | 0 | 0 | 5 | 7 | 2 | 4.23 |
| SP | Harden, R.Harden, Rich >> | 23 | 2004 | R | 66 | 10 | 10 | 6 | 2 | 3.65 | .310 | 1.28 | 8.6 | 3.1 | 7.5 | 61.2 | 58 | 27 | 25 | 6 | 21 | 51 | 0 | 0 | 0 | 0 | 5 | 4 | 1 | 3.84 |
| CL | Foulke, K.Foulke, Keith >> | 32 | 2003 | R | 97 | 22 | 0 | 1 | 2 | 1.83 | .244 | 0.86 | 5.7 | 2.4 | 11.8 | 19.2 | 12 | 6 | 4 | 0 | 5 | 25 | 0 | 18 | 2 | 0 | 0 | 2 | 0 | 1.47 |
| SU | Bradford, C.Bradford, Chad >> | 30 | 2003 | R | 84 | 25 | 0 | 2 | 1 | 5.61 | .325 | 1.40 | 8.6 | 4.3 | 9.0 | 25.2 | 24 | 18 | 16 | 2 | 12 | 25 | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 3.60 |
| RP | Duchscherer, J.Duchscherer, Justin >> | 27 | 2004 | R | 71 | 26 | 0 | 1 | 1 | 4.97 | .339 | 1.50 | 10.4 | 3.2 | 5.4 | 25.1 | 29 | 16 | 14 | 2 | 9 | 15 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 4.04 |
| RP | Rincon, R.Rincon, Ricardo >> | 34 | 2003 | L | 56 | 22 | 0 | 3 | 0 | 3.00 | .308 | 1.33 | 7.0 | 5.0 | 4.0 | 9.0 | 7 | 3 | 3 | 2 | 5 | 4 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 6.67 |
| RP | Beltran, F.Beltran, Francis >> | 25 | 2004 | R | 50 | 9 | 0 | 0 | 0 | 4.76 | .277 | 1.15 | 9.0 | 1.6 | 8.2 | 11.1 | 11 | 6 | 6 | 1 | 2 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2.91 |
| SP | Harang, A.Harang, Aaron >> | 26 | 2004 | R | 37 | 7 | 0 | 1 | 1 | 4.46 | .360 | 1.66 | 11.9 | 3.2 | 6.4 | 34.1 | 45 | 17 | 17 | 1 | 12 | 24 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3.12 |