| SP | Arrieta, J.Arrieta, Jake >> | 29 | 2015 | R | 100 | 10 | 10 | 6 | 2 | 2.95 | .252 | 1.01 | 6.9 | 2.3 | 9.5 | 76.1 | 58 | 26 | 25 | 4 | 19 | 80 | 1 | 0 | 0 | 0 | 8 | 0 | 4 | 2.33 |
| SP | Harvey, M.Harvey, Matt >> | 26 | 2015 | R | 96 | 9 | 9 | 4 | 3 | 2.45 | .294 | 1.19 | 8.7 | 2.0 | 8.7 | 62.1 | 60 | 19 | 17 | 3 | 14 | 60 | 0 | 0 | 0 | 0 | 6 | 4 | 1 | 2.56 |
| SP | McCullers, L.McCullers, Lance >> | 22 | 2015 | R | 87 | 9 | 9 | 7 | 1 | 2.73 | .267 | 1.08 | 7.2 | 2.6 | 10.7 | 59.1 | 47 | 21 | 18 | 5 | 17 | 70 | 0 | 0 | 0 | 0 | 6 | 1 | 2 | 2.64 |
| SP | Wada, T.Wada, Tsuyoshi >> | 34 | 2015 | R | 69 | 8 | 8 | 1 | 3 | 4.58 | .325 | 1.39 | 11.2 | 1.5 | 8.3 | 37.1 | 46 | 19 | 19 | 5 | 6 | 34 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 3.57 |
| SP | Martinez, N.Martinez, Nick # >> | 24 | 2015 | R | 20 | 6 | 6 | 1 | 3 | 4.83 | .340 | 1.55 | 12.2 | 2.0 | 7.8 | 31.2 | 42 | 19 | 17 | 2 | 7 | 27 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 2.77 |
| RP | Wilson, J.Wilson, Justin >> | 27 | 2015 | L | 80 | 25 | 0 | 1 | 2 | 1.48 | .222 | 0.82 | 6.3 | 1.2 | 9.9 | 30.1 | 21 | 5 | 5 | 1 | 4 | 33 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1.73 |
| RP | Morales, F.Morales, Franklin >> | 29 | 2015 | L | 61 | 21 | 0 | 2 | 1 | 3.93 | .329 | 1.42 | 11.5 | 1.5 | 8.0 | 18.1 | 23 | 8 | 8 | 2 | 3 | 16 | 0 | 2 | 0 | 0 | 0 | 1 | 2 | 3.33 |
| RP | Boxberger, B.Boxberger, Brad >> | 27 | 2015 | R | 57 | 26 | 0 | 1 | 0 | 2.54 | .315 | 1.38 | 9.0 | 3.5 | 11.3 | 28.1 | 28 | 8 | 8 | 0 | 11 | 35 | 0 | 3 | 1 | 0 | 0 | 0 | 1 | 1.68 |
| RP | Rodney, F.Rodney, Fernando >> | 38 | 2015 | R | 38 | 19 | 0 | 0 | 0 | 0.82 | .250 | 1.00 | 6.1 | 2.9 | 6.5 | 22.0 | 15 | 2 | 2 | 2 | 7 | 16 | 0 | 4 | 1 | 0 | 0 | 0 | 0 | 3.68 |
| RP | Axford, J.Axford, John >> | 32 | 2015 | R | 23 | 12 | 0 | 1 | 1 | 2.25 | .234 | 0.92 | 7.5 | 0.8 | 8.3 | 12.0 | 10 | 3 | 3 | 1 | 1 | 11 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2.50 |