| SP | Martinez, P.Martinez, Pedro $ >> | 29 | 2000 | R | 100 | 8 | 8 | 4 | 2 | 3.74 | .294 | 1.21 | 7.9 | 3.1 | 11.1 | 55.1 | 48 | 25 | 23 | 4 | 19 | 68 | 2 | 0 | 0 | 0 | 5 | 2 | 0 | 2.62 |
| SP | Kluber, C.Kluber, Corey >> | 31 | 2017 | R | 89 | 8 | 8 | 2 | 4 | 4.44 | .310 | 1.31 | 7.8 | 4.1 | 8.8 | 46.2 | 40 | 24 | 23 | 6 | 21 | 45 | 1 | 0 | 0 | 1 | 4 | 2 | 1 | 4.24 |
| SP | Johnson, W.Johnson, Walter >> | 26 | 1913 | R | 95 | 8 | 8 | 3 | 2 | 4.84 | .287 | 1.16 | 9.2 | 1.4 | 5.3 | 44.2 | 45 | 24 | 24 | 8 | 7 | 26 | 0 | 0 | 0 | 0 | 4 | 2 | 0 | 4.80 |
| SP | Hunter, C.Hunter, Catfish # >> | 26 | 1972 | R | 81 | 8 | 8 | 2 | 3 | 5.36 | .329 | 1.45 | 9.0 | 4.0 | 4.8 | 47.0 | 47 | 30 | 28 | 11 | 21 | 25 | 1 | 0 | 0 | 0 | 3 | 1 | 1 | 6.38 |
| SP | Cueto, J.Cueto, Johnny >> | 28 | 2014 | R | 75 | 7 | 7 | 4 | 1 | 4.24 | .292 | 1.22 | 8.8 | 2.1 | 5.5 | 51.0 | 50 | 24 | 24 | 7 | 12 | 31 | 1 | 0 | 0 | 0 | 4 | 1 | 1 | 4.33 |
| CL | Uehara, K.Uehara, Koji >> | 38 | 2013 | R | 100 | 22 | 0 | 0 | 4 | 3.18 | .261 | 1.06 | 7.4 | 2.5 | 8.2 | 22.2 | 18 | 8 | 8 | 4 | 6 | 20 | 0 | 12 | 1 | 0 | 0 | 0 | 0 | 4.36 |
| SU | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 92 | 24 | 0 | 0 | 1 | 5.23 | .295 | 1.26 | 8.1 | 3.6 | 8.6 | 20.2 | 18 | 12 | 12 | 3 | 8 | 19 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 4.25 |
| RP | Saito, T.Saito, Takashi >> | 37 | 2007 | R | 91 | 18 | 0 | 2 | 1 | 2.86 | .290 | 1.23 | 9.0 | 2.0 | 9.0 | 22.0 | 22 | 8 | 7 | 1 | 5 | 22 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2.27 |
| RP | Gallegos, G.Gallegos, Giovanny >> | 27 | 2019 | R | 82 | 17 | 0 | 2 | 0 | 0.40 | .230 | 0.90 | 6.5 | 1.6 | 7.0 | 22.1 | 16 | 1 | 1 | 0 | 4 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.00 |
| RP | Britton, Z.Britton, Zach >> | 28 | 2016 | L | 78 | 21 | 0 | 1 | 1 | 2.61 | .244 | 0.97 | 8.1 | 0.9 | 8.6 | 20.2 | 18 | 6 | 6 | 2 | 2 | 19 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 2.70 |