| SP | Cole, G.Cole, Gerrit † # >> | 28 | 2019 | R | 97 | 37 | 37 | 17 | 11 | 3.29 | .272 | 1.11 | 7.8 | 2.2 | 11.0 | 240.2 | 209 | 96 | 88 | 33 | 59 | 292 | 3 | 0 | 0 | 0 | 27 | 2 | 4 | 3.12 |
| SP | Buehler, W.Buehler, Walker >> | 23 | 2018 | R | 90 | 36 | 36 | 16 | 11 | 2.99 | .299 | 1.24 | 7.8 | 3.4 | 9.4 | 210.2 | 183 | 77 | 70 | 24 | 79 | 220 | 0 | 0 | 0 | 0 | 21 | 7 | 5 | 3.62 |
| SP | Hamels, C.Hamels, Cole >> | 28 | 2011 | L | 80 | 35 | 35 | 12 | 11 | 5.76 | .344 | 1.55 | 10.5 | 3.5 | 7.1 | 182.2 | 212 | 118 | 117 | 30 | 71 | 144 | 1 | 0 | 0 | 1 | 12 | 5 | 4 | 4.81 |
| SP | Tanaka, M.Tanaka, Masahiro >> | 26 | 2015 | R | 70 | 34 | 34 | 10 | 11 | 6.68 | .362 | 1.67 | 11.7 | 3.4 | 7.7 | 164.1 | 213 | 144 | 122 | 38 | 62 | 141 | 0 | 0 | 0 | 0 | 11 | 5 | 4 | 5.52 |
| SP | Keuchel, D.Keuchel, Dallas # >> | 27 | 2015 | L | 69 | 31 | 31 | 9 | 13 | 4.76 | .332 | 1.47 | 10.3 | 2.9 | 7.9 | 187.1 | 214 | 112 | 99 | 34 | 61 | 164 | 2 | 0 | 0 | 1 | 16 | 4 | 6 | 4.65 |
| RP | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 99 | 116 | 0 | 4 | 2 | 5.44 | .285 | 1.16 | 8.3 | 2.2 | 11.2 | 96.0 | 88 | 63 | 58 | 15 | 23 | 119 | 0 | 5 | 2 | 0 | 0 | 4 | 4 | 3.40 |
| RP | Gallegos, G.Gallegos, Giovanny † >> | 27 | 2019 | R | 83 | 86 | 0 | 9 | 2 | 3.42 | .267 | 1.06 | 6.1 | 3.4 | 10.6 | 100.0 | 68 | 41 | 38 | 20 | 38 | 118 | 0 | 18 | 3 | 0 | 0 | 3 | 4 | 4.47 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 78 | 70 | 0 | 4 | 4 | 3.74 | .294 | 1.22 | 7.4 | 3.6 | 9.7 | 79.1 | 65 | 35 | 33 | 12 | 32 | 85 | 0 | 7 | 3 | 0 | 0 | 2 | 6 | 4.11 |
| RP | O'Day, D.O'Day, Darren >> | 32 | 2014 | R | 64 | 53 | 0 | 4 | 2 | 5.33 | .353 | 1.60 | 8.6 | 5.9 | 8.1 | 50.2 | 48 | 30 | 30 | 8 | 33 | 45 | 0 | 9 | 4 | 0 | 0 | 2 | 0 | 5.38 |
| RP | Janssen, C.Janssen, Casey >> | 31 | 2012 | R | 56 | 47 | 0 | 2 | 3 | 4.94 | .301 | 1.25 | 8.5 | 2.8 | 9.5 | 51.0 | 48 | 28 | 28 | 9 | 16 | 54 | 0 | 3 | 1 | 0 | 0 | 2 | 0 | 4.24 |