| SP | Tiant, L.Tiant, Luis † >> | 28 | 1968 | R | 97 | 25 | 25 | 14 | 9 | 3.81 | .307 | 1.33 | 7.7 | 4.3 | 8.4 | 165.1 | 141 | 81 | 70 | 16 | 79 | 154 | 0 | 0 | 0 | 0 | 15 | 0 | 2 | 3.83 |
| SP | Alexander, P.Alexander, Pete >> | 28 | 1915 | R | 88 | 24 | 24 | 11 | 11 | 3.91 | .277 | 1.14 | 7.6 | 2.7 | 5.0 | 163.1 | 137 | 79 | 71 | 17 | 49 | 90 | 3 | 0 | 0 | 0 | 14 | 2 | 0 | 4.19 |
| SP | Kluber, C.Kluber, Corey # >> | 31 | 2017 | R | 89 | 23 | 23 | 6 | 8 | 4.10 | .282 | 1.16 | 8.8 | 1.7 | 9.3 | 142.2 | 139 | 74 | 65 | 29 | 27 | 146 | 3 | 0 | 0 | 0 | 11 | 2 | 3 | 4.21 |
| SP | Sutton, D.Sutton, Don # >> | 27 | 1972 | R | 82 | 23 | 23 | 9 | 9 | 5.02 | .348 | 1.59 | 9.9 | 4.4 | 5.6 | 138.0 | 152 | 86 | 77 | 14 | 67 | 86 | 4 | 0 | 0 | 0 | 12 | 2 | 4 | 4.57 |
| CL | Doolittle, S.Doolittle, Sean † >> | 31 | 2018 | L | 99 | 63 | 0 | 3 | 6 | 4.03 | .312 | 1.32 | 8.8 | 3.2 | 9.4 | 73.2 | 71 | 35 | 33 | 6 | 26 | 76 | 0 | 31 | 3 | 0 | 0 | 3 | 0 | 3.18 |
| SU | Gossage, R.Gossage, Rich >> | 30 | 1981 | R | 90 | 65 | 0 | 2 | 2 | 4.59 | .324 | 1.44 | 8.9 | 4.2 | 7.9 | 64.2 | 63 | 35 | 33 | 6 | 30 | 56 | 0 | 0 | 4 | 0 | 0 | 0 | 2 | 3.88 |
| RP | Boxberger, B.Boxberger, Brad >> | 26 | 2014 | R | 83 | 48 | 0 | 3 | 1 | 6.93 | .402 | 1.99 | 11.9 | 6.3 | 9.2 | 50.2 | 66 | 39 | 39 | 7 | 35 | 51 | 0 | 1 | 0 | 0 | 0 | 1 | 4 | 4.94 |