| SP | Greinke, Z.Greinke, Zack † >> | 32 | 2015 | R | 94 | 17 | 17 | 8 | 2 | 2.52 | .250 | 0.99 | 7.1 | 1.8 | 6.3 | 125.0 | 99 | 40 | 35 | 13 | 25 | 87 | 4 | 0 | 0 | 0 | 13 | 1 | 2 | 3.58 |
| SP | Leonard, D.Leonard, Dutch $ >> | 22 | 1914 | L | 91 | 16 | 16 | 5 | 6 | 4.08 | .300 | 1.27 | 7.5 | 4.0 | 4.6 | 99.1 | 82 | 47 | 45 | 6 | 44 | 51 | 2 | 0 | 0 | 2 | 9 | 2 | 0 | 4.15 |
| SP | Mathewson, C.Mathewson, Christy >> | 28 | 1908 | R | 82 | 16 | 16 | 9 | 3 | 3.67 | .281 | 1.14 | 8.5 | 1.8 | 5.4 | 112.2 | 106 | 47 | 46 | 12 | 23 | 67 | 0 | 0 | 0 | 0 | 10 | 3 | 2 | 3.89 |
| SP | Fernandez, S.Fernandez, Sid † # >> | 23 | 1985 | L | 49 | 16 | 16 | 10 | 2 | 2.99 | .272 | 1.10 | 5.8 | 4.2 | 6.8 | 111.1 | 71 | 39 | 37 | 13 | 52 | 84 | 3 | 0 | 0 | 0 | 11 | 2 | 2 | 4.47 |
| RP | Wagner, B.Wagner, Billy † >> | 28 | 1999 | L | 95 | 51 | 0 | 6 | 3 | 2.14 | .229 | 0.89 | 5.6 | 2.4 | 9.3 | 67.1 | 42 | 19 | 16 | 1 | 18 | 69 | 0 | 10 | 1 | 0 | 0 | 0 | 2 | 1.94 |
| RP | Hader, J.Hader, Josh † >> | 24 | 2018 | L | 93 | 35 | 0 | 3 | 2 | 1.40 | .226 | 0.88 | 4.2 | 3.7 | 8.3 | 51.1 | 24 | 8 | 8 | 3 | 21 | 47 | 0 | 4 | 1 | 0 | 0 | 0 | 0 | 3.16 |
| RP | Saito, T.Saito, Takashi >> | 37 | 2007 | R | 91 | 23 | 0 | 1 | 4 | 3.73 | .314 | 1.37 | 9.9 | 2.6 | 7.0 | 31.1 | 34 | 13 | 13 | 2 | 9 | 24 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 3.16 |
| RP | Boxberger, B.Boxberger, Brad >> | 26 | 2014 | R | 83 | 14 | 0 | 2 | 0 | 1.00 | .217 | 0.83 | 5.0 | 2.5 | 10.0 | 18.0 | 10 | 2 | 2 | 0 | 5 | 20 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1.61 |
| RP | Zimmerman, J.Zimmerman, Jeff >> | 27 | 1999 | R | 70 | 8 | 0 | 1 | 0 | 1.00 | .308 | 1.33 | 7.0 | 5.0 | 3.0 | 9.0 | 7 | 1 | 1 | 1 | 5 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 5.44 |