| SP | Strasburg, S.Strasburg, Stephen >> | 30 | 2019 | R | 96 | 20 | 20 | 7 | 9 | 3.95 | .305 | 1.28 | 8.7 | 2.9 | 11.9 | 127.2 | 123 | 56 | 56 | 18 | 41 | 168 | 0 | 0 | 0 | 0 | 11 | 4 | 3 | 3.26 |
| SP | Voth, A.Voth, Austin + >> | 27 | 2019 | R | 91 | 19 | 19 | 3 | 9 | 3.36 | .305 | 1.27 | 8.3 | 3.2 | 10.3 | 96.1 | 88 | 37 | 36 | 15 | 34 | 110 | 0 | 0 | 0 | 0 | 4 | 5 | 0 | 3.96 |
| SP | Minor, M.Minor, Mike # >> | 31 | 2019 | L | 70 | 17 | 17 | 5 | 7 | 4.90 | .298 | 1.21 | 9.1 | 1.9 | 10.1 | 104.2 | 105 | 58 | 57 | 18 | 22 | 117 | 0 | 0 | 0 | 0 | 9 | 6 | 0 | 3.81 |
| SP | Lyles, J.Lyles, Jordan >> | 28 | 2019 | R | 62 | 17 | 17 | 4 | 11 | 5.27 | .359 | 1.66 | 9.9 | 5.1 | 9.3 | 80.1 | 88 | 47 | 47 | 12 | 45 | 83 | 0 | 0 | 0 | 0 | 3 | 2 | 4 | 4.64 |
| SP | Lopez, R.Lopez, Reynaldo >> | 25 | 2019 | R | 31 | 13 | 12 | 5 | 7 | 6.09 | .322 | 1.40 | 9.5 | 3.0 | 8.7 | 68.0 | 72 | 46 | 46 | 12 | 23 | 66 | 0 | 0 | 0 | 0 | 4 | 2 | 2 | 4.46 |
| CL | Rivero, F.Rivero, Felipe >> | 27 | 2019 | L | 98 | 26 | 0 | 0 | 1 | 2.19 | .267 | 1.05 | 7.1 | 2.6 | 12.8 | 24.2 | 19 | 9 | 6 | 1 | 7 | 34 | 0 | 15 | 3 | 0 | 0 | 1 | 3 | 1.71 |
| SU | Adams, A.Adams, Austin # + >> | 28 | 2019 | R | 94 | 40 | 0 | 1 | 2 | 5.08 | .361 | 1.63 | 7.6 | 7.4 | 13.4 | 33.2 | 28 | 20 | 19 | 7 | 27 | 49 | 0 | 0 | 2 | 0 | 0 | 2 | 2 | 5.42 |
| RP | Cordero, J.Cordero, Jimmy + >> | 27 | 2019 | R | 89 | 50 | 0 | 4 | 0 | 2.86 | .283 | 1.14 | 6.7 | 3.5 | 9.3 | 66.0 | 49 | 23 | 21 | 4 | 26 | 68 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3.05 |
| RP | Rainey, T.Rainey, Tanner + >> | 26 | 2019 | R | 68 | 33 | 0 | 2 | 1 | 6.21 | .390 | 1.89 | 9.8 | 7.4 | 11.2 | 33.1 | 36 | 25 | 23 | 3 | 27 | 41 | 0 | 1 | 1 | 0 | 0 | 1 | 2 | 4.24 |
| RP | Stammen, C.Stammen, Craig >> | 35 | 2019 | R | 66 | 30 | 0 | 1 | 0 | 2.76 | .333 | 1.50 | 11.8 | 2.0 | 7.9 | 32.2 | 42 | 10 | 10 | 3 | 7 | 28 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 3.13 |