| SP | Ramirez, E.Ramirez, Erasmo >> | 22 | 2012 | R | 98 | 25 | 25 | 2 | 6 | 2.74 | .271 | 1.10 | 7.3 | 2.6 | 6.7 | 108.1 | 88 | 34 | 33 | 5 | 31 | 80 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 3.04 |
| SP | Morrow, B.Morrow, Brandon >> | 28 | 2012 | R | 95 | 25 | 25 | 6 | 9 | 3.15 | .302 | 1.27 | 7.9 | 3.6 | 7.6 | 157.0 | 138 | 63 | 55 | 10 | 62 | 132 | 0 | 0 | 0 | 0 | 13 | 4 | 1 | 3.41 |
| SP | Vogelsong, R.Vogelsong, Ryan # >> | 35 | 2012 | R | 78 | 24 | 24 | 9 | 11 | 4.21 | .320 | 1.39 | 9.7 | 2.9 | 8.5 | 151.2 | 162 | 78 | 71 | 17 | 49 | 143 | 0 | 0 | 0 | 0 | 11 | 3 | 5 | 3.60 |
| SP | Santana, E.Santana, Ervin >> | 29 | 2012 | R | 67 | 16 | 16 | 6 | 7 | 5.56 | .338 | 1.51 | 11.0 | 2.7 | 7.0 | 90.2 | 110 | 60 | 56 | 13 | 27 | 70 | 1 | 0 | 0 | 0 | 9 | 2 | 1 | 4.29 |
| RP | Frasor, J.Frasor, Jason >> | 35 | 2012 | R | 32 | 63 | 0 | 5 | 4 | 3.54 | .315 | 1.38 | 8.9 | 3.5 | 10.1 | 84.0 | 83 | 38 | 33 | 7 | 33 | 94 | 0 | 1 | 3 | 0 | 0 | 0 | 11 | 3.02 |
| CL | Casilla, S.Casilla, Santiago >> | 32 | 2012 | R | 62 | 66 | 0 | 3 | 2 | 4.64 | .279 | 1.14 | 6.9 | 3.4 | 8.6 | 85.1 | 65 | 45 | 44 | 14 | 32 | 81 | 0 | 11 | 1 | 0 | 0 | 2 | 3 | 4.44 |
| SP | Rodriguez, W.Rodriguez, Wandy >> | 33 | 2012 | L | 56 | 0 | 0 | 0 | 0 | - | .000 | - | - | - | - | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
| SP | Colon, B.Colon, Bartolo >> | 39 | 2012 | R | 58 | 20 | 0 | 4 | 3 | 3.46 | .332 | 1.49 | 10.5 | 3.1 | 6.1 | 41.2 | 48 | 18 | 16 | 7 | 14 | 28 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 4.88 |