| SP | Martinez, P.Martinez, Pedro >> | 29 | 2000 | R | 100 | 26 | 26 | 9 | 12 | 3.59 | .286 | 1.18 | 7.9 | 2.7 | 8.7 | 190.2 | 167 | 83 | 76 | 19 | 58 | 184 | 4 | 0 | 0 | 1 | 15 | 4 | 5 | 3.34 |
| SP | Kluber, C.Kluber, Corey >> | 31 | 2017 | R | 90 | 26 | 25 | 5 | 11 | 4.95 | .337 | 1.50 | 9.7 | 3.8 | 8.5 | 169.0 | 183 | 97 | 93 | 17 | 71 | 159 | 2 | 1 | 0 | 0 | 11 | 4 | 3 | 3.76 |
| SP | Nelson, R.Nelson, Roger >> | 28 | 1972 | R | 85 | 24 | 24 | 4 | 8 | 6.11 | .348 | 1.59 | 9.9 | 4.4 | 6.1 | 116.1 | 128 | 83 | 79 | 22 | 57 | 79 | 0 | 0 | 0 | 0 | 6 | 1 | 1 | 5.60 |
| SP | Marichal, J.Marichal, Juan >> | 29 | 1966 | R | 77 | 24 | 24 | 11 | 9 | 4.14 | .305 | 1.29 | 9.2 | 2.5 | 5.1 | 180.1 | 183 | 89 | 83 | 14 | 50 | 101 | 9 | 0 | 0 | 2 | 11 | 4 | 2 | 3.79 |
| RP | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 99 | 69 | 0 | 2 | 1 | 2.51 | .255 | 1.03 | 6.8 | 2.5 | 8.6 | 46.2 | 35 | 14 | 13 | 5 | 13 | 44 | 0 | 4 | 2 | 0 | 0 | 0 | 0 | 3.35 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 79 | 38 | 0 | 1 | 2 | 1.67 | .246 | 0.98 | 5.0 | 3.8 | 7.1 | 43.0 | 24 | 9 | 8 | 3 | 18 | 34 | 0 | 2 | 1 | 0 | 0 | 0 | 2 | 3.58 |