| SP | Williams, J.Williams, Jerome >> | 31 | 2012 | R | 55 | 25 | 25 | 4 | 11 | 3.96 | .320 | 1.38 | 9.2 | 3.3 | 6.7 | 116.0 | 118 | 55 | 51 | 9 | 42 | 86 | 0 | 0 | 0 | 0 | 4 | 4 | 1 | 3.72 |
| SP | McAllister, Z.McAllister, Zach >> | 24 | 2012 | R | 43 | 24 | 24 | 5 | 11 | 3.59 | .298 | 1.25 | 8.7 | 2.6 | 6.7 | 153.0 | 148 | 69 | 61 | 12 | 44 | 114 | 0 | 0 | 0 | 0 | 17 | 3 | 0 | 3.45 |
| SP | Pomeranz, D.Pomeranz, Drew >> | 23 | 2012 | L | 36 | 23 | 23 | 5 | 4 | 3.72 | .301 | 1.26 | 8.7 | 2.6 | 6.9 | 109.0 | 105 | 55 | 45 | 13 | 32 | 84 | 0 | 0 | 0 | 0 | 3 | 4 | 3 | 4.00 |
| SP | Masterson, J.Masterson, Justin >> | 27 | 2012 | R | 33 | 17 | 17 | 3 | 13 | 6.19 | .365 | 1.71 | 10.6 | 4.9 | 7.6 | 91.2 | 107 | 69 | 63 | 8 | 50 | 77 | 0 | 0 | 0 | 0 | 5 | 1 | 6 | 4.13 |
| RP | Dotel, O.Dotel, Octavio >> | 39 | 2012 | R | 81 | 77 | 0 | 3 | 2 | 2.40 | .253 | 1.00 | 6.7 | 2.4 | 10.5 | 78.2 | 58 | 22 | 21 | 3 | 21 | 91 | 0 | 2 | 2 | 0 | 0 | 1 | 0 | 2.01 |
| RP | O'Flaherty, E.O'Flaherty, Eric >> | 27 | 2012 | L | 73 | 78 | 0 | 6 | 4 | 2.73 | .288 | 1.20 | 8.5 | 2.3 | 6.0 | 69.1 | 65 | 27 | 21 | 8 | 18 | 46 | 0 | 1 | 3 | 0 | 0 | 1 | 3 | 4.00 |
| RP | Wright, W.Wright, Wesley >> | 27 | 2012 | L | 69 | 55 | 0 | 2 | 2 | 2.36 | .259 | 1.03 | 6.6 | 2.7 | 9.8 | 53.1 | 39 | 17 | 14 | 3 | 16 | 58 | 0 | 3 | 2 | 0 | 0 | 1 | 0 | 2.51 |
| RP | League, B.League, Brandon >> | 29 | 2012 | R | 42 | 70 | 0 | 3 | 4 | 2.58 | .276 | 1.13 | 6.1 | 4.1 | 5.9 | 66.1 | 45 | 21 | 19 | 3 | 30 | 43 | 0 | 6 | 2 | 0 | 0 | 1 | 3 | 3.70 |
| RP | Brothers, R.Brothers, Rex >> | 24 | 2012 | L | 35 | 36 | 0 | 0 | 2 | 5.45 | .323 | 1.43 | 7.0 | 6.0 | 8.5 | 36.1 | 28 | 22 | 22 | 4 | 24 | 34 | 0 | 2 | 1 | 0 | 0 | 0 | 1 | 4.56 |
| RP | Ramirez, R.Ramirez, Ramon >> | 31 | 2012 | R | 31 | 41 | 0 | 3 | 1 | 3.70 | .303 | 1.26 | 7.0 | 4.4 | 7.5 | 41.1 | 32 | 19 | 17 | 4 | 20 | 34 | 0 | 5 | 1 | 0 | 0 | 2 | 4 | 4.22 |