| RP | Oliver, D.Oliver, Darren >> | 39 | 2009 | L | 60 | 23 | 0 | 2 | 1 | 2.68 | .288 | 1.14 | 8.0 | 2.2 | 7.1 | 37.0 | 33 | 12 | 11 | 1 | 9 | 29 | 0 | 2 | 2 | 0 | 0 | 3 | 2 | 2.76 |
| SP | Harden, R.Harden, Rich >> | 28 | 2009 | R | 67 | 10 | 10 | 4 | 2 | 4.37 | .324 | 1.38 | 8.3 | 4.3 | 8.2 | 55.2 | 51 | 28 | 27 | 8 | 26 | 50 | 0 | 0 | 0 | 0 | 4 | 3 | 3 | 4.65 |
| RP | Mota, G.Mota, Guillermo >> | 36 | 2009 | R | 49 | 26 | 0 | 5 | 3 | 5.20 | .288 | 1.18 | 7.5 | 3.3 | 7.0 | 36.1 | 30 | 21 | 21 | 2 | 13 | 28 | 0 | 0 | 3 | 0 | 0 | 1 | 3 | 3.33 |
| RP | Marmol, C.Marmol, Carlos >> | 27 | 2009 | R | 43 | 30 | 0 | 1 | 2 | 3.24 | .310 | 1.35 | 6.5 | 5.7 | 8.7 | 33.1 | 24 | 12 | 12 | 4 | 21 | 32 | 0 | 5 | 3 | 0 | 0 | 0 | 2 | 4.55 |
| SP | Sanchez, J.Sanchez, Jonathan >> | 27 | 2009 | L | 62 | 10 | 10 | 2 | 3 | 5.25 | .374 | 1.71 | 9.9 | 5.4 | 8.1 | 48.0 | 53 | 29 | 28 | 7 | 29 | 43 | 0 | 0 | 0 | 0 | 2 | 4 | 2 | 5.17 |
| SP | Billingsley, C.Billingsley, Chad >> | 25 | 2009 | R | 66 | 10 | 10 | 2 | 2 | 4.94 | .352 | 1.59 | 9.5 | 5.0 | 7.3 | 58.1 | 61 | 35 | 32 | 7 | 32 | 47 | 0 | 0 | 0 | 0 | 4 | 2 | 4 | 4.71 |
| RP | Thatcher, J.Thatcher, Joe >> | 28 | 2009 | L | 54 | 21 | 0 | 1 | 0 | 2.67 | .264 | 1.07 | 6.3 | 3.3 | 8.7 | 27.0 | 19 | 8 | 8 | 4 | 10 | 26 | 0 | 4 | 2 | 0 | 0 | 0 | 4 | 4.11 |
| RP | Fulchino, J.Fulchino, Jeff >> | 30 | 2009 | R | 47 | 21 | 0 | 3 | 2 | 3.18 | .234 | 0.92 | 4.8 | 3.5 | 5.1 | 28.1 | 15 | 10 | 10 | 4 | 11 | 16 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4.89 |
| SP | Gallardo, Y.Gallardo, Yovani >> | 23 | 2009 | R | 72 | 9 | 9 | 5 | 3 | 3.93 | .318 | 1.40 | 7.2 | 5.4 | 7.7 | 55.0 | 44 | 25 | 24 | 4 | 33 | 47 | 0 | 0 | 0 | 0 | 6 | 0 | 1 | 4.04 |
| SP | Kershaw, C.Kershaw, Clayton >> | 21 | 2009 | L | 91 | 9 | 9 | 3 | 2 | 3.19 | .312 | 1.32 | 7.1 | 4.9 | 8.2 | 53.2 | 42 | 21 | 19 | 3 | 29 | 48 | 0 | 0 | 0 | 0 | 5 | 2 | 4 | 3.68 |