| SP | Strasburg, S.Strasburg, Stephen >> | 30 | 2019 | R | 96 | 33 | 33 | 10 | 13 | 3.57 | .281 | 1.15 | 7.4 | 3.0 | 11.0 | 206.2 | 169 | 82 | 82 | 26 | 68 | 252 | 2 | 0 | 0 | 1 | 23 | 5 | 3 | 3.26 |
| SP | Samardzija, J.Samardzija, Jeff >> | 34 | 2019 | R | 82 | 32 | 32 | 7 | 9 | 3.77 | .304 | 1.26 | 8.6 | 2.8 | 7.5 | 176.2 | 168 | 82 | 74 | 26 | 55 | 146 | 0 | 0 | 0 | 0 | 13 | 8 | 1 | 4.34 |
| RP | Pagan, E.Pagan, Emilio >> | 28 | 2019 | R | 100 | 106 | 0 | 6 | 10 | 4.87 | .300 | 1.26 | 8.5 | 2.9 | 12.2 | 138.2 | 131 | 77 | 75 | 28 | 44 | 187 | 0 | 2 | 9 | 0 | 0 | 3 | 3 | 3.95 |
| RP | Harris, W.Harris, Will >> | 34 | 2019 | R | 94 | 102 | 0 | 8 | 5 | 5.16 | .327 | 1.43 | 9.4 | 3.5 | 10.9 | 127.1 | 132 | 74 | 73 | 26 | 50 | 154 | 0 | 8 | 6 | 0 | 0 | 4 | 2 | 4.51 |
| RP | Robles, H.Robles, Hansel >> | 28 | 2019 | R | 87 | 83 | 0 | 8 | 6 | 3.65 | .295 | 1.23 | 8.0 | 3.0 | 10.1 | 101.0 | 90 | 42 | 41 | 14 | 34 | 113 | 0 | 11 | 4 | 0 | 0 | 3 | 5 | 3.66 |
| RP | Wingenter, T.Wingenter, Trey >> | 25 | 2019 | R | 85 | 68 | 0 | 6 | 6 | 5.97 | .356 | 1.59 | 7.6 | 6.8 | 12.0 | 72.1 | 61 | 49 | 48 | 15 | 54 | 96 | 0 | 3 | 2 | 0 | 0 | 5 | 1 | 5.50 |