| SP | Greinke, Z.Greinke, Zack >> | 25 | 2008 | R | 74 | 5 | 5 | 2 | 3 | 4.40 | .348 | 1.57 | 11.1 | 3.3 | 7.2 | 30.2 | 37 | 15 | 15 | 2 | 11 | 24 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | 3.47 |
| SP | Davies, K.Davies, Kyle >> | 25 | 2008 | R | 40 | 5 | 5 | 1 | 3 | 5.79 | .378 | 1.82 | 10.9 | 5.5 | 5.5 | 28.0 | 34 | 20 | 18 | 2 | 17 | 17 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 4.54 |
| SP | Duckworth, B.Duckworth, Brandon >> | 32 | 2008 | R | 39 | 4 | 4 | 2 | 1 | 2.10 | .222 | 0.86 | 6.5 | 1.4 | 4.3 | 25.2 | 18 | 8 | 6 | 3 | 4 | 12 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 4.08 |
| SP | Hochevar, L.Hochevar, Luke >> | 25 | 2008 | R | 35 | 0 | 0 | 0 | 0 | - | .000 | - | - | - | - | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
| CL | Soria, J.Soria, Joakim >> | 24 | 2008 | R | 98 | 3 | 0 | 0 | 1 | 0.00 | .300 | 1.29 | 13.5 | 0.0 | 9.0 | 2.1 | 3 | 2 | 0 | 1 | 0 | 2 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 7.50 |
| SU | Tejeda, R.Tejeda, Robinson >> | 26 | 2008 | R | 95 | 6 | 0 | 0 | 0 | 6.75 | .429 | 2.25 | 15.8 | 4.5 | 9.0 | 4.0 | 7 | 5 | 3 | 0 | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.50 |
| RP | Ramirez, R.Ramirez, Ramon >> | 27 | 2008 | R | 80 | 13 | 0 | 0 | 0 | 2.61 | .244 | 0.97 | 3.6 | 5.4 | 0.9 | 10.1 | 4 | 3 | 3 | 0 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4.60 |
| RP | Peralta, J.Peralta, Joel >> | 32 | 2008 | R | 48 | 5 | 0 | 1 | 0 | 5.06 | .304 | 1.31 | 9.0 | 3.6 | 5.4 | 5.1 | 5 | 3 | 3 | 0 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.00 |
| SP | Bannister, B.Bannister, Brian >> | 27 | 2008 | R | 29 | 2 | 0 | 0 | 0 | 3.52 | .324 | 1.43 | 10.3 | 3.9 | 7.7 | 7.2 | 8 | 3 | 3 | 1 | 3 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.43 |