| SP | Kluber, C.Kluber, Corey >> | 31 | 2017 | R | 96 | 16 | 16 | 9 | 4 | 3.58 | .272 | 1.08 | 7.7 | 2.1 | 9.7 | 110.2 | 94 | 44 | 44 | 15 | 26 | 119 | 3 | 0 | 0 | 1 | 9 | 4 | 0 | 3.43 |
| SP | Harvey, M.Harvey, Matt >> | 24 | 2013 | R | 84 | 16 | 16 | 8 | 3 | 3.93 | .287 | 1.19 | 8.6 | 2.1 | 9.0 | 110.0 | 105 | 51 | 48 | 11 | 26 | 110 | 3 | 0 | 0 | 2 | 8 | 2 | 3 | 3.06 |
| SP | Buchholz, C.Buchholz, Clay # >> | 29 | 2013 | R | 81 | 15 | 15 | 8 | 6 | 4.50 | .323 | 1.42 | 9.4 | 3.4 | 8.3 | 98.0 | 102 | 54 | 49 | 16 | 37 | 90 | 1 | 0 | 0 | 0 | 9 | 1 | 1 | 4.45 |
| SP | Dickey, R.Dickey, R.A. >> | 38 | 2012 | R | 52 | 15 | 15 | 7 | 6 | 5.71 | .347 | 1.55 | 11.1 | 2.9 | 6.5 | 88.1 | 109 | 59 | 56 | 20 | 28 | 64 | 2 | 0 | 0 | 0 | 7 | 4 | 0 | 5.59 |
| RP | Benoit, J.Benoit, Joaquin >> | 33 | 2010 | R | 95 | 42 | 0 | 2 | 2 | 3.90 | .235 | 0.90 | 6.3 | 1.9 | 9.6 | 57.2 | 40 | 25 | 25 | 8 | 12 | 61 | 0 | 6 | 2 | 0 | 0 | 1 | 0 | 3.37 |
| RP | Parker, B.Parker, Blake >> | 32 | 2017 | R | 77 | 29 | 0 | 3 | 0 | 4.04 | .310 | 1.35 | 9.3 | 3.1 | 8.0 | 35.2 | 36 | 17 | 16 | 4 | 12 | 31 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 3.74 |
| RP | Ottavino, A.Ottavino, Adam >> | 32 | 2018 | R | 59 | 30 | 0 | 2 | 1 | 2.84 | .317 | 1.39 | 7.5 | 5.2 | 12.2 | 31.2 | 26 | 11 | 10 | 4 | 18 | 42 | 0 | 8 | 0 | 0 | 0 | 0 | 3 | 3.71 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 34 | 2014 | R | 45 | 22 | 0 | 1 | 1 | 5.24 | .337 | 1.52 | 10.6 | 3.3 | 8.6 | 22.1 | 26 | 14 | 13 | 3 | 8 | 21 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3.95 |
| RP | Smith, C.Smith, Carson >> | 25 | 2015 | R | 35 | 18 | 0 | 0 | 0 | 5.96 | .358 | 1.68 | 11.5 | 4.1 | 9.4 | 22.2 | 28 | 15 | 15 | 2 | 10 | 23 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 3.45 |
| SP | Romero, R.Romero, Ricky >> | 26 | 2011 | L | 35 | 2 | 0 | 1 | 0 | 4.91 | .214 | 0.82 | 3.0 | 6.0 | 12.0 | 3.2 | 1 | 2 | 2 | 0 | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2.33 |
| SP | Gonzalez, G.Gonzalez, Gio >> | 27 | 2012 | L | 46 | 8 | 0 | 0 | 1 | 8.15 | .376 | 1.81 | 13.8 | 3.2 | 7.4 | 17.2 | 26 | 16 | 16 | 5 | 6 | 14 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6.24 |