| SP | Buehler, W.Buehler, Walker >> | 23 | 2018 | R | 97 | 34 | 34 | 13 | 11 | 3.63 | .306 | 1.29 | 8.0 | 3.6 | 10.3 | 200.2 | 177 | 88 | 81 | 20 | 81 | 229 | 0 | 0 | 0 | 0 | 18 | 8 | 0 | 3.35 |
| SP | Minor, M.Minor, Mike # >> | 30 | 2018 | L | 79 | 33 | 33 | 10 | 12 | 4.75 | .333 | 1.47 | 9.8 | 3.5 | 8.1 | 187.2 | 204 | 103 | 99 | 25 | 72 | 169 | 0 | 0 | 0 | 0 | 15 | 5 | 3 | 4.17 |
| SP | Marquez, G.Marquez, German † >> | 23 | 2018 | R | 65 | 32 | 32 | 11 | 9 | 4.41 | .321 | 1.38 | 9.6 | 2.8 | 10.1 | 196.0 | 210 | 97 | 96 | 37 | 60 | 220 | 0 | 0 | 0 | 0 | 18 | 8 | 0 | 4.25 |
| SP | Syndergaard, N.Syndergaard, Noah >> | 25 | 2018 | R | 57 | 32 | 32 | 8 | 7 | 4.31 | .337 | 1.50 | 11.1 | 2.4 | 9.9 | 194.0 | 239 | 96 | 93 | 24 | 52 | 214 | 0 | 0 | 0 | 0 | 21 | 5 | 3 | 3.28 |
| SP | Newcomb, S.Newcomb, Sean # >> | 25 | 2018 | L | 48 | 31 | 31 | 7 | 12 | 5.63 | .342 | 1.52 | 9.5 | 4.2 | 9.8 | 155.0 | 163 | 100 | 97 | 20 | 73 | 168 | 0 | 0 | 0 | 0 | 8 | 6 | 1 | 4.04 |
| RP | Dominguez, S.Dominguez, Seranthony >> | 23 | 2018 | R | 96 | 86 | 0 | 7 | 3 | 3.65 | .304 | 1.28 | 7.3 | 4.2 | 10.4 | 118.1 | 96 | 48 | 48 | 15 | 55 | 137 | 0 | 4 | 5 | 0 | 0 | 4 | 10 | 3.83 |
| RP | Holder, J.Holder, Jonathan >> | 25 | 2018 | R | 67 | 83 | 0 | 8 | 10 | 4.72 | .321 | 1.41 | 9.9 | 2.8 | 8.4 | 101.0 | 111 | 62 | 53 | 17 | 31 | 94 | 0 | 9 | 4 | 0 | 0 | 1 | 0 | 4.28 |
| RP | Barnes, M.Barnes, Matt >> | 28 | 2018 | R | 58 | 64 | 0 | 2 | 2 | 3.39 | .278 | 1.10 | 6.8 | 3.2 | 12.3 | 74.1 | 56 | 29 | 28 | 7 | 26 | 101 | 0 | 10 | 2 | 0 | 0 | 4 | 6 | 2.72 |
| RP | Venters, J.Venters, Jonny >> | 33 | 2018 | L | 49 | 52 | 0 | 3 | 3 | 2.97 | .275 | 1.10 | 5.7 | 4.4 | 7.5 | 60.2 | 38 | 20 | 20 | 5 | 29 | 50 | 0 | 5 | 2 | 0 | 0 | 2 | 5 | 3.97 |
| RP | Belisle, M.Belisle, Matt >> | 38 | 2018 | R | 1 | 44 | 0 | 2 | 3 | 5.40 | .360 | 1.61 | 11.0 | 3.6 | 6.1 | 53.1 | 65 | 34 | 32 | 11 | 21 | 36 | 0 | 2 | 1 | 0 | 0 | 4 | 1 | 5.75 |
| SP | Bailey, H.Bailey, Homer >> | 32 | 2018 | R | 1 | 22 | 0 | 3 | 3 | 6.84 | .406 | 1.90 | 12.5 | 4.8 | 8.0 | 26.1 | 36 | 20 | 20 | 8 | 14 | 23 | 0 | 2 | 2 | 0 | 0 | 4 | 0 | 7.31 |