| SP | Hanson, T.Hanson, Tommy >> | 22 | 2009 | R | 92 | 24 | 24 | 8 | 6 | 3.64 | .331 | 1.46 | 8.8 | 4.4 | 7.5 | 151.0 | 147 | 65 | 61 | 11 | 73 | 126 | 0 | 0 | 0 | 0 | 13 | 4 | 2 | 3.81 |
| SP | Wainwright, A.Wainwright, Adam >> | 28 | 2009 | R | 83 | 23 | 23 | 9 | 9 | 4.61 | .330 | 1.47 | 9.2 | 4.0 | 7.1 | 158.0 | 161 | 84 | 81 | 19 | 71 | 125 | 1 | 0 | 0 | 0 | 13 | 1 | 6 | 4.35 |
| SP | Lackey, J.Lackey, John # >> | 31 | 2009 | R | 59 | 22 | 22 | 13 | 6 | 3.37 | .281 | 1.15 | 8.6 | 1.7 | 6.9 | 155.0 | 148 | 62 | 58 | 10 | 30 | 119 | 3 | 0 | 0 | 2 | 16 | 4 | 3 | 2.96 |
| RP | Hoffman, T.Hoffman, Trevor >> | 42 | 2009 | R | 95 | 60 | 0 | 5 | 3 | 2.73 | .313 | 1.35 | 7.6 | 4.6 | 6.5 | 79.0 | 67 | 25 | 24 | 6 | 40 | 57 | 0 | 4 | 6 | 0 | 0 | 1 | 6 | 4.10 |
| RP | Francisco, F.Francisco, Frank † >> | 30 | 2009 | R | 72 | 56 | 0 | 7 | 2 | 2.56 | .304 | 1.27 | 8.4 | 3.1 | 10.2 | 70.1 | 65 | 27 | 20 | 7 | 24 | 79 | 0 | 6 | 3 | 0 | 0 | 3 | 2 | 3.20 |
| RP | Belisario, R.Belisario, Ronald >> | 27 | 2009 | R | 65 | 46 | 0 | 3 | 7 | 5.47 | .354 | 1.64 | 10.1 | 4.8 | 7.7 | 49.1 | 55 | 31 | 30 | 6 | 26 | 42 | 0 | 4 | 3 | 0 | 0 | 0 | 3 | 4.47 |
| RP | Perez, C.Perez, Chris # >> | 24 | 2009 | R | 64 | 37 | 0 | 1 | 4 | 7.26 | .367 | 1.71 | 10.7 | 4.6 | 10.5 | 31.0 | 37 | 25 | 25 | 8 | 16 | 36 | 0 | 8 | 1 | 0 | 0 | 1 | 2 | 5.68 |
| SP | Kawakami, K.Kawakami, Kenshin >> | 34 | 2009 | R | 39 | 6 | 0 | 1 | 0 | 2.70 | .375 | 1.65 | 10.5 | 6.0 | 4.5 | 6.2 | 7 | 4 | 2 | 0 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4.50 |