| SP | Giolito, L.Giolito, Lucas † # >> | 24 | 2019 | R | 95 | 31 | 31 | 9 | 12 | 4.12 | .297 | 1.20 | 8.5 | 2.3 | 11.4 | 194.1 | 184 | 93 | 89 | 28 | 50 | 245 | 1 | 0 | 0 | 1 | 17 | 12 | 0 | 3.31 |
| SP | Montas, F.Montas, Frankie >> | 26 | 2019 | R | 81 | 30 | 30 | 4 | 13 | 5.68 | .337 | 1.48 | 9.8 | 3.6 | 10.8 | 166.1 | 180 | 113 | 105 | 21 | 66 | 200 | 0 | 0 | 0 | 0 | 14 | 8 | 8 | 3.57 |
| SP | Snell, B.Snell, Blake # >> | 26 | 2019 | L | 65 | 29 | 28 | 4 | 6 | 4.54 | .324 | 1.40 | 8.9 | 3.8 | 11.5 | 134.2 | 132 | 68 | 68 | 15 | 56 | 171 | 0 | 0 | 0 | 0 | 2 | 6 | 8 | 3.29 |
| SP | Heaney, A.Heaney, Andrew >> | 28 | 2019 | L | 54 | 31 | 30 | 4 | 14 | 7.29 | .383 | 1.81 | 13.0 | 3.3 | 11.2 | 150.2 | 217 | 124 | 122 | 33 | 55 | 187 | 0 | 0 | 0 | 0 | 3 | 8 | 3 | 4.63 |
| SP | Eickhoff, J.Eickhoff, Jerad >> | 28 | 2019 | R | 45 | 33 | 29 | 6 | 12 | 7.06 | .381 | 1.82 | 12.3 | 4.1 | 8.5 | 131.1 | 179 | 111 | 103 | 40 | 60 | 123 | 0 | 1 | 0 | 0 | 2 | 4 | 0 | 6.56 |
| RP | Drake, O.Drake, Oliver >> | 32 | 2019 | R | 95 | 99 | 0 | 7 | 6 | 4.31 | .311 | 1.33 | 8.4 | 3.6 | 11.4 | 129.1 | 120 | 62 | 62 | 19 | 52 | 163 | 0 | 6 | 6 | 0 | 0 | 3 | 2 | 3.67 |
| RP | Wingenter, T.Wingenter, Trey >> | 25 | 2019 | R | 78 | 95 | 0 | 4 | 9 | 3.90 | .336 | 1.50 | 8.3 | 5.3 | 12.0 | 122.1 | 112 | 55 | 53 | 20 | 72 | 163 | 0 | 6 | 4 | 0 | 0 | 2 | 3 | 4.28 |
| RP | Goody, N.Goody, Nick † >> | 27 | 2019 | R | 63 | 94 | 0 | 10 | 6 | 4.10 | .320 | 1.40 | 7.6 | 5.0 | 10.0 | 116.1 | 98 | 54 | 53 | 13 | 65 | 129 | 0 | 8 | 4 | 0 | 0 | 1 | 0 | 3.94 |
| RP | Suero, W.Suero, Wander >> | 27 | 2019 | R | 53 | 79 | 0 | 5 | 6 | 4.24 | .302 | 1.24 | 7.0 | 4.2 | 9.3 | 104.0 | 81 | 50 | 49 | 12 | 48 | 107 | 0 | 6 | 4 | 0 | 0 | 6 | 4 | 4.00 |
| RP | Rondon, H.Rondon, Hector >> | 31 | 2019 | R | 44 | 67 | 0 | 7 | 4 | 5.47 | .342 | 1.52 | 10.6 | 3.3 | 8.0 | 80.2 | 94 | 51 | 49 | 19 | 29 | 71 | 0 | 5 | 2 | 0 | 0 | 3 | 0 | 5.51 |