| SP | Greinke, Z.Greinke, Zack >> | 32 | 2015 | R | 98 | 30 | 30 | 11 | 12 | 2.58 | .274 | 1.10 | 8.0 | 2.0 | 7.3 | 226.1 | 200 | 78 | 65 | 18 | 49 | 184 | 4 | 0 | 0 | 2 | 22 | 7 | 6 | 3.15 |
| SP | Archer, C.Archer, Chris # >> | 26 | 2015 | R | 87 | 29 | 29 | 5 | 15 | 6.82 | .376 | 1.77 | 11.6 | 4.5 | 9.5 | 155.2 | 199 | 121 | 118 | 20 | 77 | 163 | 0 | 0 | 0 | 0 | 7 | 5 | 10 | 4.16 |
| SP | Odorizzi, J.Odorizzi, Jake # >> | 25 | 2015 | R | 77 | 29 | 29 | 8 | 12 | 4.62 | .319 | 1.36 | 9.6 | 2.7 | 7.4 | 167.2 | 178 | 88 | 86 | 20 | 50 | 138 | 0 | 0 | 0 | 0 | 16 | 8 | 6 | 3.95 |
| SP | Richards, G.Richards, Garrett >> | 27 | 2015 | R | 69 | 26 | 26 | 7 | 11 | 5.75 | .361 | 1.68 | 11.4 | 3.8 | 6.3 | 159.2 | 201 | 105 | 102 | 21 | 68 | 112 | 0 | 0 | 0 | 0 | 13 | 2 | 6 | 4.63 |
| SP | Miller, S.Miller, Shelby >> | 24 | 2015 | R | 63 | 27 | 27 | 9 | 12 | 5.81 | .328 | 1.44 | 10.4 | 2.6 | 7.6 | 153.1 | 176 | 101 | 99 | 31 | 45 | 130 | 0 | 0 | 0 | 0 | 11 | 4 | 4 | 4.90 |
| RP | Chapman, A.Chapman, Aroldis >> | 27 | 2015 | L | 78 | 78 | 0 | 4 | 2 | 2.95 | .299 | 1.25 | 6.3 | 5.0 | 11.2 | 97.2 | 68 | 32 | 32 | 6 | 54 | 121 | 0 | 0 | 4 | 0 | 0 | 3 | 5 | 3.07 |
| RP | Gregerson, L.Gregerson, Luke >> | 31 | 2015 | R | 80 | 79 | 0 | 6 | 4 | 3.58 | .311 | 1.35 | 9.2 | 3.0 | 7.0 | 93.0 | 95 | 39 | 37 | 8 | 31 | 72 | 0 | 2 | 4 | 0 | 0 | 0 | 2 | 3.57 |
| RP | Bastardo, A.Bastardo, Antonio >> | 30 | 2015 | L | 74 | 59 | 0 | 4 | 5 | 2.93 | .323 | 1.39 | 7.1 | 5.5 | 9.3 | 67.2 | 53 | 23 | 22 | 5 | 41 | 69 | 0 | 1 | 1 | 0 | 0 | 3 | 11 | 3.88 |
| RP | Matusz, B.Matusz, Brian >> | 28 | 2015 | L | 58 | 38 | 0 | 3 | 1 | 3.96 | .322 | 1.40 | 9.5 | 3.3 | 9.9 | 38.2 | 40 | 18 | 17 | 3 | 14 | 42 | 0 | 4 | 0 | 0 | 0 | 1 | 3 | 3.00 |
| CL | Davis, W.Davis, Wade † >> | 29 | 2015 | R | 99 | 60 | 0 | 2 | 4 | 3.38 | .315 | 1.36 | 7.8 | 4.7 | 10.6 | 58.2 | 50 | 23 | 22 | 5 | 30 | 68 | 0 | 33 | 3 | 0 | 0 | 1 | 0 | 3.38 |