| SP | Kluber, C.Kluber, Corey >> | 31 | 2017 | R | 96 | 20 | 20 | 7 | 9 | 5.14 | .313 | 1.34 | 9.6 | 2.5 | 10.1 | 136.2 | 145 | 78 | 78 | 20 | 38 | 153 | 4 | 0 | 0 | 0 | 9 | 4 | 3 | 3.59 |
| SP | Buchholz, C.Buchholz, Clay # >> | 29 | 2013 | R | 81 | 19 | 19 | 8 | 7 | 4.86 | .329 | 1.45 | 9.6 | 3.5 | 7.9 | 126.0 | 134 | 70 | 68 | 12 | 49 | 111 | 0 | 0 | 0 | 0 | 8 | 2 | 2 | 3.69 |
| SP | Darvish, Y.Darvish, Yu >> | 26 | 2013 | R | 80 | 19 | 19 | 6 | 7 | 5.10 | .359 | 1.66 | 8.5 | 6.5 | 10.7 | 114.2 | 108 | 68 | 65 | 20 | 82 | 135 | 0 | 0 | 0 | 0 | 8 | 3 | 2 | 5.15 |
| SP | Bauer, T.Bauer, Trevor >> | 27 | 2018 | R | 59 | 19 | 19 | 2 | 11 | 7.40 | .395 | 1.92 | 12.3 | 5.0 | 11.0 | 101.0 | 138 | 84 | 83 | 14 | 56 | 123 | 0 | 0 | 0 | 0 | 3 | 4 | 9 | 4.15 |
| RP | Uehara, K.Uehara, Koji >> | 38 | 2013 | R | 100 | 48 | 0 | 1 | 1 | 2.01 | .261 | 1.06 | 7.2 | 2.4 | 12.2 | 71.2 | 57 | 16 | 16 | 4 | 19 | 96 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1.83 |
| RP | Parker, B.Parker, Blake >> | 32 | 2017 | R | 80 | 51 | 0 | 4 | 3 | 3.55 | .291 | 1.23 | 8.1 | 3.0 | 10.1 | 63.1 | 57 | 28 | 25 | 10 | 21 | 71 | 0 | 5 | 3 | 0 | 0 | 0 | 3 | 3.81 |
| RP | Workman, B.Workman, Brandon >> | 30 | 2019 | R | 57 | 42 | 0 | 1 | 1 | 5.06 | .340 | 1.52 | 7.3 | 6.6 | 12.6 | 42.2 | 34 | 24 | 24 | 10 | 31 | 59 | 0 | 5 | 1 | 0 | 0 | 1 | 7 | 5.57 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 34 | 2014 | R | 47 | 34 | 0 | 3 | 2 | 6.09 | .370 | 1.76 | 12.4 | 3.4 | 7.4 | 34.0 | 47 | 23 | 23 | 4 | 13 | 28 | 0 | 5 | 1 | 0 | 0 | 0 | 0 | 4.03 |
| RP | Neris, H.Neris, Hector >> | 30 | 2019 | R | 38 | 29 | 0 | 2 | 2 | 5.64 | .385 | 1.85 | 11.4 | 5.4 | 10.2 | 30.1 | 38 | 19 | 19 | 4 | 18 | 34 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 4.37 |
| SP | Kennedy, I.Kennedy, Ian >> | 27 | 2011 | R | 45 | 3 | 0 | 0 | 1 | 1.17 | .233 | 0.91 | 6.4 | 2.6 | 7.7 | 7.2 | 5 | 1 | 1 | 0 | 2 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2.14 |
| SP | Wheeler, Z.Wheeler, Zack >> | 28 | 2018 | R | 40 | 15 | 0 | 2 | 1 | 8.10 | .370 | 1.76 | 10.4 | 5.9 | 8.0 | 26.2 | 30 | 24 | 24 | 7 | 17 | 23 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 6.69 |