| SP | Giolito, L.Giolito, Lucas >> | 24 | 2019 | R | 96 | 34 | 34 | 14 | 11 | 3.78 | .292 | 1.21 | 6.9 | 4.0 | 11.0 | 216.2 | 166 | 93 | 91 | 29 | 97 | 264 | 1 | 0 | 0 | 1 | 22 | 5 | 6 | 3.72 |
| SP | Buehler, W.Buehler, Walker # >> | 24 | 2019 | R | 93 | 33 | 33 | 10 | 15 | 4.54 | .296 | 1.24 | 8.5 | 2.7 | 10.6 | 210.1 | 198 | 108 | 106 | 37 | 63 | 247 | 3 | 0 | 0 | 1 | 20 | 4 | 2 | 3.90 |
| SP | Morton, C.Morton, Charlie >> | 36 | 2019 | R | 92 | 32 | 32 | 11 | 8 | 4.45 | .320 | 1.38 | 9.2 | 3.1 | 11.2 | 192.0 | 197 | 98 | 95 | 28 | 67 | 238 | 0 | 0 | 0 | 0 | 18 | 7 | 4 | 3.57 |
| RP | Workman, B.Workman, Brandon >> | 30 | 2019 | R | 95 | 86 | 0 | 14 | 3 | 3.66 | .327 | 1.40 | 6.3 | 6.3 | 11.9 | 108.1 | 76 | 46 | 44 | 14 | 76 | 143 | 0 | 0 | 3 | 0 | 0 | 6 | 4 | 4.31 |
| RP | Cordero, J.Cordero, Jimmy >> | 27 | 2019 | R | 89 | 72 | 0 | 4 | 4 | 4.22 | .310 | 1.31 | 8.3 | 3.4 | 9.0 | 81.0 | 75 | 41 | 38 | 16 | 31 | 81 | 0 | 0 | 4 | 0 | 0 | 3 | 3 | 4.83 |
| RP | Kintzler, B.Kintzler, Brandon >> | 34 | 2019 | R | 80 | 62 | 0 | 3 | 2 | 5.13 | .322 | 1.41 | 9.8 | 3.0 | 9.0 | 66.2 | 72 | 38 | 38 | 12 | 22 | 66 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 4.41 |
| RP | Wittgren, N.Wittgren, Nick >> | 28 | 2019 | R | 82 | 47 | 0 | 3 | 2 | 5.09 | .378 | 1.76 | 11.9 | 3.9 | 10.2 | 46.0 | 61 | 26 | 26 | 11 | 20 | 52 | 0 | 1 | 1 | 0 | 0 | 3 | 0 | 5.35 |
| SP | Poncedeleon, D.Poncedeleon, Daniel >> | 27 | 2019 | R | 73 | 8 | 0 | 2 | 2 | 6.04 | .396 | 1.93 | 13.1 | 4.5 | 12.3 | 22.1 | 32 | 15 | 15 | 2 | 11 | 30 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3.09 |