| SP | Buehler, W.Buehler, Walker # >> | 23 | 2018 | R | 90 | 34 | 34 | 14 | 7 | 3.46 | .281 | 1.16 | 7.7 | 2.7 | 9.4 | 208.1 | 178 | 86 | 80 | 35 | 63 | 218 | 0 | 0 | 0 | 0 | 22 | 3 | 4 | 4.04 |
| SP | Bumgarner, M.Bumgarner, Madison >> | 26 | 2016 | L | 76 | 33 | 33 | 8 | 17 | 4.97 | .320 | 1.39 | 9.1 | 3.4 | 9.7 | 208.1 | 211 | 117 | 115 | 31 | 79 | 225 | 3 | 0 | 0 | 0 | 17 | 4 | 5 | 3.97 |
| SP | Porcello, R.Porcello, Rick # >> | 27 | 2016 | R | 56 | 32 | 32 | 12 | 14 | 6.37 | .350 | 1.59 | 11.8 | 2.5 | 7.6 | 182.1 | 239 | 130 | 129 | 41 | 50 | 154 | 2 | 0 | 0 | 0 | 10 | 6 | 0 | 5.16 |
| SP | Johnson, J.Johnson, Josh >> | 26 | 2010 | R | 39 | 31 | 31 | 7 | 13 | 5.10 | .336 | 1.51 | 10.1 | 3.5 | 9.2 | 189.0 | 212 | 112 | 107 | 24 | 74 | 194 | 2 | 0 | 0 | 0 | 12 | 1 | 3 | 3.79 |
| RP | Hendriks, L.Hendriks, Liam >> | 30 | 2019 | R | 41 | 72 | 0 | 3 | 1 | 3.68 | .318 | 1.39 | 8.3 | 4.3 | 9.8 | 85.2 | 78 | 35 | 35 | 8 | 41 | 93 | 0 | 5 | 2 | 0 | 0 | 1 | 3 | 3.52 |
| RP | Rondon, H.Rondon, Hector >> | 27 | 2015 | R | 25 | 67 | 0 | 5 | 8 | 5.69 | .340 | 1.51 | 10.5 | 3.2 | 7.3 | 68.0 | 79 | 46 | 43 | 11 | 24 | 55 | 0 | 9 | 5 | 0 | 0 | 2 | 4 | 4.63 |
| RP | Rosenthal, T.Rosenthal, Trevor >> | 23 | 2013 | R | 13 | 54 | 0 | 3 | 2 | 3.47 | .332 | 1.46 | 9.5 | 3.6 | 9.8 | 57.0 | 60 | 28 | 22 | 8 | 23 | 62 | 0 | 3 | 2 | 0 | 0 | 2 | 0 | 3.96 |
| SP | Quintana, J.Quintana, Jose >> | 27 | 2016 | L | 13 | 1 | 0 | 0 | 0 | 0.00 | .333 | 1.50 | - | - | - | 0.2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |