| SP | Arrieta, J.Arrieta, Jake >> | 29 | 2015 | R | 93 | 36 | 36 | 15 | 6 | 3.11 | .272 | 1.12 | 7.6 | 2.5 | 6.5 | 220.0 | 186 | 78 | 76 | 23 | 60 | 160 | 0 | 0 | 0 | 0 | 21 | 1 | 2 | 3.74 |
| SP | Richard, J.Richard, J.R. >> | 30 | 1980 | R | 90 | 35 | 35 | 13 | 12 | 3.52 | .298 | 1.25 | 7.1 | 4.2 | 7.2 | 227.1 | 180 | 97 | 89 | 16 | 105 | 181 | 1 | 0 | 0 | 1 | 25 | 4 | 4 | 3.76 |
| SP | Mathewson, C.Mathewson, Christy # >> | 29 | 1909 | R | 85 | 33 | 33 | 16 | 8 | 4.44 | .296 | 1.25 | 8.8 | 2.5 | 3.6 | 198.2 | 194 | 100 | 98 | 19 | 54 | 79 | 3 | 0 | 0 | 2 | 18 | 3 | 6 | 4.31 |
| CL | Kimbrel, C.Kimbrel, Craig >> | 24 | 2012 | R | 100 | 93 | 0 | 8 | 5 | 2.88 | .244 | 0.94 | 5.6 | 2.9 | 9.3 | 128.0 | 79 | 44 | 41 | 8 | 41 | 132 | 0 | 14 | 5 | 0 | 0 | 4 | 5 | 2.80 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 79 | 58 | 0 | 5 | 6 | 3.15 | .244 | 0.97 | 6.0 | 2.8 | 7.7 | 71.1 | 47 | 25 | 25 | 8 | 22 | 61 | 0 | 14 | 2 | 0 | 0 | 0 | 1 | 3.68 |
| RP | Britton, Z.Britton, Zach >> | 28 | 2016 | L | 77 | 39 | 0 | 5 | 2 | 2.84 | .249 | 0.99 | 4.9 | 4.1 | 9.2 | 44.1 | 24 | 14 | 14 | 5 | 20 | 45 | 0 | 2 | 1 | 0 | 0 | 0 | 6 | 3.80 |
| RP | Rhodes, A.Rhodes, Arthur >> | 32 | 2001 | L | 64 | 16 | 0 | 2 | 1 | 3.05 | .295 | 1.26 | 8.6 | 3.2 | 8.1 | 20.2 | 19 | 7 | 7 | 3 | 7 | 18 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 4.20 |
| RP | Fingers, R.Fingers, Rollie >> | 35 | 1981 | R | 53 | 42 | 0 | 4 | 1 | 3.77 | .330 | 1.47 | 9.9 | 3.4 | 5.2 | 71.2 | 78 | 35 | 30 | 9 | 27 | 41 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 4.68 |