| SP | Scherzer, M.Scherzer, Max >> | 34 | 2018 | R | 100 | 3 | 3 | 2 | 0 | 2.57 | .276 | 1.10 | 6.0 | 3.9 | 9.4 | 21.0 | 14 | 6 | 6 | 1 | 9 | 22 | 1 | 0 | 0 | 1 | 3 | 1 | 1 | 2.95 |
| SP | Kluber, C.Kluber, Corey >> | 32 | 2018 | R | 91 | 2 | 2 | 1 | 1 | 1.93 | .276 | 1.07 | 9.0 | 0.6 | 6.4 | 14.0 | 14 | 5 | 3 | 1 | 1 | 10 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 2.93 |
| RP | Familia, J.Familia, Jeurys >> | 28 | 2018 | R | 55 | 6 | 0 | 0 | 0 | 3.52 | .343 | 1.57 | 11.6 | 3.9 | 7.7 | 7.2 | 9 | 3 | 3 | 0 | 3 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2.57 |
| RP | Rodriguez, R.Rodriguez, Richard >> | 28 | 2018 | R | 77 | 6 | 0 | 0 | 0 | 2.35 | .207 | 0.78 | 6.4 | 1.3 | 7.7 | 7.2 | 5 | 2 | 2 | 2 | 1 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5.43 |
| CL | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 100 | 4 | 0 | 0 | 0 | 4.50 | .250 | 1.00 | 6.8 | 2.3 | 9.0 | 4.0 | 3 | 2 | 2 | 1 | 1 | 4 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 5.00 |
| SP | Hamels, C.Hamels, Cole >> | 35 | 2018 | L | 53 | 1 | 0 | 0 | 0 | 18.00 | .400 | 2.00 | 18.0 | 0.0 | 9.0 | 1.0 | 2 | 2 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14.00 |
| SU | Robertson, D.Robertson, David >> | 33 | 2018 | R | 89 | 6 | 0 | 1 | 2 | 16.62 | .435 | 2.31 | 13.5 | 9.0 | 9.0 | 4.1 | 6 | 8 | 8 | 1 | 4 | 4 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 7.25 |
| RP | Fields, J.Fields, Josh >> | 32 | 2018 | R | 87 | 2 | 0 | 0 | 0 | 0.00 | .333 | 1.50 | 9.0 | 9.0 | 18.0 | 1.1 | 1 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.00 |