| SP | Martinez, P.Martinez, Pedro >> | 29 | 2000 | R | 100 | 32 | 32 | 12 | 10 | 4.30 | .299 | 1.27 | 8.3 | 3.2 | 7.9 | 205.1 | 189 | 104 | 98 | 26 | 72 | 181 | 5 | 0 | 0 | 1 | 15 | 2 | 3 | 3.97 |
| SP | Kluber, C.Kluber, Corey † >> | 31 | 2017 | R | 89 | 31 | 31 | 14 | 9 | 4.46 | .320 | 1.39 | 9.8 | 2.7 | 8.0 | 191.2 | 208 | 96 | 95 | 26 | 58 | 169 | 2 | 0 | 0 | 1 | 20 | 5 | 5 | 3.99 |
| SP | Alexander, P.Alexander, Pete >> | 28 | 1915 | R | 88 | 31 | 31 | 12 | 12 | 4.95 | .312 | 1.33 | 9.0 | 2.9 | 5.7 | 181.2 | 182 | 105 | 100 | 23 | 59 | 115 | 4 | 0 | 0 | 0 | 16 | 6 | 6 | 4.46 |
| SP | Hunter, C.Hunter, Catfish >> | 26 | 1972 | R | 81 | 32 | 31 | 7 | 13 | 5.63 | .347 | 1.58 | 10.5 | 3.8 | 5.3 | 172.2 | 201 | 123 | 108 | 30 | 72 | 101 | 3 | 0 | 0 | 0 | 14 | 2 | 2 | 5.38 |
| SP | Marichal, J.Marichal, Juan >> | 29 | 1966 | R | 76 | 31 | 30 | 11 | 11 | 5.16 | .339 | 1.53 | 11.0 | 2.8 | 5.3 | 171.0 | 209 | 108 | 98 | 37 | 53 | 101 | 4 | 0 | 1 | 2 | 13 | 1 | 3 | 5.58 |
| CL | Uehara, K.Uehara, Koji † >> | 38 | 2013 | R | 100 | 86 | 0 | 3 | 7 | 3.18 | .255 | 1.01 | 6.8 | 2.3 | 10.6 | 96.1 | 72 | 34 | 34 | 12 | 25 | 113 | 0 | 35 | 7 | 0 | 0 | 2 | 1 | 3.11 |
| SU | Chapman, A.Chapman, Aroldis >> | 26 | 2014 | L | 93 | 87 | 0 | 4 | 1 | 4.18 | .336 | 1.51 | 7.4 | 6.1 | 10.4 | 97.0 | 80 | 48 | 45 | 10 | 66 | 112 | 0 | 3 | 0 | 0 | 0 | 1 | 5 | 4.10 |
| RP | Gallegos, G.Gallegos, Giovanny # >> | 27 | 2019 | R | 82 | 80 | 0 | 8 | 3 | 3.83 | .292 | 1.21 | 8.3 | 2.6 | 8.0 | 101.0 | 93 | 56 | 43 | 13 | 29 | 90 | 0 | 1 | 5 | 0 | 0 | 3 | 3 | 3.84 |
| RP | Pagan, E.Pagan, Emilio >> | 28 | 2019 | R | 76 | 65 | 0 | 4 | 4 | 5.73 | .315 | 1.35 | 9.0 | 3.2 | 9.2 | 77.0 | 77 | 50 | 49 | 13 | 27 | 79 | 0 | 1 | 1 | 0 | 0 | 2 | 4 | 4.27 |