| SP | Samardzija, J.Samardzija, Jeff # >> | 27 | 2012 | R | 84 | 27 | 27 | 11 | 10 | 4.59 | .296 | 1.24 | 8.6 | 2.6 | 9.1 | 147.0 | 140 | 77 | 75 | 12 | 43 | 149 | 1 | 0 | 0 | 1 | 12 | 2 | 5 | 2.95 |
| SP | Villanueva, C.Villanueva, Carlos >> | 29 | 2012 | R | 75 | 25 | 25 | 2 | 7 | 4.70 | .294 | 1.25 | 7.6 | 3.6 | 8.5 | 92.0 | 78 | 51 | 48 | 12 | 37 | 87 | 0 | 0 | 0 | 0 | 1 | 0 | 5 | 4.01 |
| SP | Gallardo, Y.Gallardo, Yovani >> | 26 | 2012 | R | 71 | 24 | 24 | 6 | 13 | 3.93 | .298 | 1.27 | 8.1 | 3.3 | 9.5 | 144.1 | 130 | 68 | 63 | 18 | 53 | 152 | 0 | 0 | 0 | 0 | 13 | 1 | 2 | 3.64 |
| SP | Diamond, S.Diamond, Scott >> | 25 | 2012 | L | 52 | 23 | 22 | 8 | 7 | 4.09 | .310 | 1.33 | 9.7 | 2.3 | 5.6 | 123.1 | 132 | 58 | 56 | 14 | 32 | 76 | 0 | 0 | 0 | 0 | 11 | 2 | 2 | 4.07 |
| SP | Volstad, C.Volstad, Chris >> | 26 | 2012 | R | 7 | 24 | 10 | 4 | 5 | 6.22 | .376 | 1.81 | 12.0 | 4.4 | 7.1 | 72.1 | 96 | 55 | 50 | 9 | 35 | 57 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 4.50 |
| RP | Burnett, S.Burnett, Sean >> | 30 | 2012 | L | 49 | 59 | 0 | 4 | 2 | 2.28 | .269 | 1.08 | 7.2 | 2.5 | 10.0 | 75.0 | 60 | 26 | 19 | 7 | 21 | 83 | 0 | 1 | 2 | 0 | 0 | 2 | 5 | 2.92 |
| RP | Burton, J.Burton, Jared >> | 31 | 2012 | R | 94 | 58 | 0 | 1 | 3 | 3.07 | .267 | 1.07 | 6.2 | 3.5 | 9.0 | 70.1 | 48 | 25 | 24 | 4 | 27 | 70 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 2.99 |
| RP | Lindblom, J.Lindblom, Josh # >> | 25 | 2012 | R | 54 | 55 | 0 | 3 | 2 | 4.83 | .326 | 1.44 | 9.1 | 3.9 | 8.1 | 63.1 | 64 | 38 | 34 | 7 | 27 | 57 | 0 | 3 | 1 | 0 | 0 | 1 | 6 | 3.97 |
| RP | Adams, M.Adams, Mike # >> | 34 | 2012 | R | 29 | 37 | 0 | 1 | 2 | 5.65 | .299 | 1.21 | 8.4 | 2.5 | 10.0 | 43.0 | 40 | 27 | 27 | 4 | 12 | 48 | 0 | 0 | 1 | 0 | 0 | 3 | 1 | 3.02 |
| RP | Francisco, F.Francisco, Frank >> | 33 | 2012 | R | 17 | 35 | 0 | 0 | 1 | 5.09 | .337 | 1.52 | 8.3 | 5.6 | 11.0 | 40.2 | 37 | 24 | 23 | 6 | 25 | 49 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.38 |
| SP | Nicasio, J.Nicasio, Juan >> | 25 | 2012 | R | 17 | 23 | 6 | 9 | 5 | 4.67 | .325 | 1.41 | 9.6 | 3.2 | 8.9 | 90.2 | 96 | 47 | 47 | 10 | 32 | 89 | 0 | 0 | 0 | 0 | 1 | 3 | 3 | 3.63 |