| SP | Scherzer, M.Scherzer, Max >> | 33 | 2017 | R | 95 | 36 | 36 | 15 | 10 | 3.10 | .272 | 1.11 | 6.8 | 3.2 | 8.1 | 258.1 | 194 | 94 | 89 | 26 | 92 | 232 | 3 | 0 | 0 | 0 | 25 | 3 | 4 | 3.62 |
| SP | Joss, A.Joss, Addie $$ >> | 28 | 1908 | R | 83 | 34 | 34 | 14 | 9 | 3.88 | .278 | 1.14 | 8.5 | 1.7 | 3.9 | 250.2 | 237 | 109 | 108 | 24 | 48 | 109 | 11 | 0 | 0 | 1 | 18 | 5 | 5 | 4.01 |
| SP | Greinke, Z.Greinke, Zack >> | 32 | 2015 | R | 93 | 34 | 34 | 15 | 14 | 3.80 | .276 | 1.11 | 7.5 | 2.5 | 4.9 | 248.2 | 207 | 107 | 105 | 35 | 70 | 136 | 9 | 0 | 0 | 3 | 19 | 8 | 6 | 4.68 |
| RP | Feliz, N.Feliz, Neftali >> | 21 | 2009 | R | 97 | 74 | 0 | 5 | 4 | 2.62 | .256 | 1.03 | 4.9 | 4.4 | 7.7 | 82.1 | 45 | 25 | 24 | 6 | 40 | 70 | 0 | 12 | 5 | 0 | 0 | 0 | 0 | 3.71 |
| RP | Devine, J.Devine, Joey † >> | 25 | 2008 | R | 82 | 53 | 0 | 7 | 5 | 1.97 | .244 | 0.94 | 5.5 | 3.0 | 6.8 | 64.0 | 39 | 16 | 14 | 3 | 21 | 48 | 0 | 8 | 2 | 0 | 0 | 2 | 0 | 3.19 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 79 | 32 | 0 | 6 | 1 | 2.12 | .301 | 1.29 | 6.6 | 5.0 | 8.2 | 34.0 | 25 | 8 | 8 | 0 | 19 | 31 | 0 | 8 | 1 | 0 | 0 | 0 | 1 | 2.85 |
| RP | Holland, G.Holland, Greg >> | 27 | 2013 | R | 72 | 16 | 0 | 5 | 2 | 3.57 | .338 | 1.42 | 8.5 | 4.8 | 9.5 | 17.2 | 16 | 7 | 7 | 0 | 9 | 18 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 2.82 |
| SP | Waddell, R.Waddell, Rube >> | 29 | 1905 | L | 66 | 14 | 0 | 3 | 2 | 3.78 | .281 | 1.16 | 7.0 | 3.5 | 4.4 | 66.2 | 51 | 28 | 28 | 6 | 26 | 32 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4.44 |