| SP | Greinke, Z.Greinke, Zack >> | 32 | 2015 | R | 94 | 13 | 13 | 3 | 5 | 4.24 | .315 | 1.38 | 9.2 | 3.2 | 6.4 | 85.0 | 87 | 51 | 40 | 11 | 30 | 60 | 0 | 0 | 0 | 0 | 6 | 0 | 4 | 4.33 |
| SP | Nelson, R.Nelson, Roger >> | 28 | 1972 | R | 85 | 13 | 13 | 5 | 5 | 7.15 | .351 | 1.59 | 12.1 | 2.4 | 4.0 | 61.2 | 82 | 50 | 49 | 11 | 16 | 27 | 0 | 0 | 0 | 0 | 3 | 2 | 3 | 5.34 |
| SP | Bender, C.Bender, Chief >> | 26 | 1910 | R | 72 | 13 | 13 | 4 | 5 | 7.00 | .343 | 1.57 | 10.9 | 3.3 | 5.3 | 72.0 | 87 | 58 | 56 | 11 | 26 | 42 | 1 | 0 | 0 | 1 | 3 | 0 | 1 | 4.90 |
| CL | Kimbrel, C.Kimbrel, Craig >> | 24 | 2012 | R | 100 | 38 | 0 | 2 | 4 | 4.63 | .331 | 1.46 | 8.7 | 4.4 | 12.6 | 35.0 | 34 | 18 | 18 | 5 | 17 | 49 | 0 | 19 | 3 | 0 | 0 | 1 | 6 | 3.60 |
| RP | Boxberger, B.Boxberger, Brad >> | 26 | 2014 | R | 83 | 33 | 0 | 2 | 0 | 4.64 | .281 | 1.17 | 6.9 | 3.9 | 10.5 | 42.2 | 32 | 23 | 22 | 6 | 18 | 49 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 3.81 |
| RP | Gallegos, G.Gallegos, Giovanny >> | 27 | 2019 | R | 80 | 24 | 0 | 1 | 0 | 9.53 | .401 | 2.01 | 14.5 | 3.9 | 8.0 | 28.1 | 45 | 31 | 30 | 6 | 12 | 25 | 0 | 1 | 1 | 0 | 0 | 0 | 5 | 5.29 |