| SP | Bumgarner, M.Bumgarner, Madison >> | 25 | 2015 | L | 96 | 35 | 35 | 11 | 18 | 4.95 | .310 | 1.30 | 9.3 | 2.4 | 9.1 | 236.1 | 245 | 131 | 130 | 36 | 63 | 239 | 4 | 0 | 0 | 2 | 18 | 10 | 4 | 3.89 |
| SP | Ramirez, E.Ramirez, Erasmo # >> | 25 | 2015 | R | 77 | 34 | 34 | 9 | 15 | 4.83 | .327 | 1.42 | 10.1 | 2.6 | 6.3 | 177.0 | 199 | 97 | 95 | 34 | 52 | 123 | 1 | 0 | 0 | 1 | 8 | 7 | 3 | 5.11 |
| SP | Richards, G.Richards, Garrett >> | 27 | 2015 | R | 69 | 33 | 33 | 7 | 17 | 5.45 | .351 | 1.61 | 9.7 | 4.8 | 7.3 | 193.1 | 209 | 123 | 117 | 28 | 103 | 157 | 1 | 0 | 0 | 1 | 14 | 2 | 11 | 4.89 |
| SP | Bauer, T.Bauer, Trevor >> | 24 | 2015 | R | 58 | 31 | 31 | 13 | 7 | 4.08 | .307 | 1.30 | 7.6 | 4.1 | 7.5 | 185.1 | 157 | 87 | 84 | 17 | 84 | 155 | 0 | 0 | 0 | 0 | 14 | 5 | 6 | 3.96 |
| RP | Harris, W.Harris, Will >> | 30 | 2015 | R | 96 | 86 | 0 | 4 | 6 | 3.71 | .275 | 1.14 | 6.8 | 3.5 | 8.5 | 121.1 | 91 | 51 | 50 | 16 | 47 | 114 | 0 | 4 | 8 | 0 | 0 | 0 | 1 | 4.00 |
| RP | Bastardo, A.Bastardo, Antonio >> | 30 | 2015 | L | 74 | 85 | 0 | 2 | 2 | 3.08 | .302 | 1.28 | 7.4 | 4.1 | 10.3 | 108.0 | 89 | 41 | 37 | 10 | 49 | 124 | 0 | 8 | 1 | 0 | 0 | 2 | 10 | 3.32 |
| RP | Street, H.Street, Huston >> | 32 | 2015 | R | 53 | 74 | 0 | 5 | 5 | 6.02 | .351 | 1.60 | 11.1 | 3.5 | 8.2 | 83.2 | 102 | 57 | 56 | 11 | 32 | 76 | 0 | 5 | 5 | 0 | 0 | 2 | 6 | 4.12 |
| RP | Rosenthal, T.Rosenthal, Trevor >> | 25 | 2015 | R | 42 | 65 | 0 | 6 | 2 | 3.29 | .319 | 1.40 | 9.0 | 3.7 | 11.6 | 68.1 | 68 | 25 | 25 | 5 | 28 | 88 | 0 | 6 | 3 | 0 | 0 | 0 | 5 | 2.60 |
| RP | Wilhelmsen, T.Wilhelmsen, Tom >> | 31 | 2015 | R | 32 | 56 | 0 | 2 | 3 | 4.52 | .348 | 1.54 | 9.1 | 4.9 | 8.1 | 63.2 | 64 | 32 | 32 | 7 | 34 | 57 | 0 | 5 | 1 | 0 | 0 | 4 | 2 | 4.44 |
| SP | Billingsley, C.Billingsley, Chad >> | 31 | 2015 | R | 1 | 0 | 0 | 0 | 0 | - | .000 | - | - | - | - | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
| SP | de la Rosa, J.de la Rosa, Jorge >> | 34 | 2015 | L | 43 | 1 | 0 | 0 | 0 | 0.00 | .250 | 1.00 | 0.0 | 9.0 | 0.0 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.00 |
| SP | Pineda, M.Pineda, Michael >> | 26 | 2015 | R | 51 | 30 | 0 | 4 | 6 | 3.76 | .322 | 1.41 | 11.1 | 1.7 | 7.8 | 52.2 | 64 | 30 | 22 | 6 | 10 | 45 | 0 | 4 | 2 | 0 | 0 | 1 | 1 | 3.40 |