| SP | Kershaw, C.Kershaw, Clayton >> | 27 | 2015 | L | 100 | 23 | 23 | 11 | 9 | 3.02 | .284 | 1.16 | 8.2 | 2.3 | 10.1 | 173.0 | 157 | 62 | 58 | 17 | 44 | 195 | 4 | 0 | 0 | 0 | 18 | 5 | 1 | 2.87 |
| SP | Liriano, F.Liriano, Francisco >> | 32 | 2015 | L | 79 | 22 | 22 | 2 | 12 | 5.69 | .350 | 1.61 | 10.2 | 4.2 | 10.8 | 123.1 | 140 | 80 | 78 | 19 | 58 | 147 | 0 | 0 | 0 | 0 | 8 | 1 | 3 | 4.06 |
| SP | Fernandez, J.Fernandez, Jose >> | 23 | 2015 | R | 71 | 22 | 22 | 9 | 5 | 5.55 | .350 | 1.60 | 11.9 | 2.6 | 11.3 | 120.0 | 158 | 74 | 74 | 17 | 34 | 150 | 0 | 0 | 0 | 0 | 7 | 2 | 4 | 3.24 |
| SP | Wilson, C.Wilson, C.J. >> | 35 | 2015 | L | 64 | 24 | 22 | 7 | 7 | 6.20 | .358 | 1.66 | 10.5 | 4.5 | 6.9 | 117.2 | 137 | 87 | 81 | 16 | 58 | 90 | 2 | 1 | 0 | 1 | 7 | 2 | 7 | 4.78 |
| RP | Rodriguez, F.Rodriguez, Francisco † >> | 33 | 2015 | R | 98 | 81 | 0 | 7 | 0 | 2.36 | .252 | 0.99 | 6.8 | 2.1 | 9.0 | 84.0 | 63 | 22 | 22 | 8 | 20 | 84 | 0 | 4 | 4 | 0 | 0 | 2 | 3 | 3.02 |
| RP | Madson, R.Madson, Ryan >> | 35 | 2015 | R | 78 | 65 | 0 | 4 | 2 | 3.86 | .292 | 1.22 | 7.7 | 3.5 | 7.5 | 60.2 | 51 | 26 | 26 | 7 | 23 | 50 | 0 | 3 | 2 | 0 | 0 | 1 | 0 | 4.05 |
| RP | Jepsen, K.Jepsen, Kevin >> | 31 | 2015 | R | 66 | 55 | 0 | 5 | 3 | 4.14 | .296 | 1.23 | 7.6 | 3.6 | 7.8 | 58.2 | 49 | 28 | 27 | 8 | 23 | 50 | 0 | 7 | 2 | 0 | 0 | 2 | 2 | 4.36 |
| RP | Matusz, B.Matusz, Brian >> | 28 | 2015 | L | 58 | 64 | 0 | 7 | 1 | 3.26 | .278 | 1.05 | 6.5 | 2.9 | 11.3 | 58.0 | 42 | 21 | 21 | 7 | 19 | 73 | 0 | 11 | 1 | 0 | 0 | 6 | 0 | 3.34 |