| SP | Flaherty, J.Flaherty, Jack >> | 23 | 2019 | R | 91 | 4 | 4 | 2 | 1 | 3.60 | .318 | 1.36 | 8.6 | 3.6 | 9.7 | 25.0 | 24 | 10 | 10 | 3 | 10 | 27 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 3.72 |
| SP | Iwakuma, H.Iwakuma, Hisashi >> | 32 | 2013 | R | 65 | 4 | 4 | 0 | 2 | 6.46 | .366 | 1.73 | 14.5 | 1.6 | 6.3 | 23.2 | 37 | 18 | 17 | 8 | 4 | 16 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 6.65 |
| SP | Gonzalez, G.Gonzalez, Gio >> | 27 | 2012 | L | 46 | 4 | 4 | 1 | 2 | 7.48 | .404 | 1.98 | 11.1 | 7.3 | 7.7 | 21.2 | 26 | 18 | 18 | 2 | 17 | 18 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 5.10 |
| RP | Sanchez, A.Sanchez, Aaron >> | 21 | 2014 | R | 91 | 9 | 0 | 0 | 0 | 2.13 | .283 | 1.11 | 6.8 | 3.8 | 11.3 | 12.2 | 9 | 3 | 3 | 1 | 5 | 15 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3.08 |
| RP | McHugh, C.McHugh, Collin >> | 31 | 2018 | R | 63 | 8 | 0 | 0 | 1 | 3.55 | .309 | 1.18 | 7.5 | 3.8 | 9.8 | 12.2 | 10 | 5 | 5 | 3 | 5 | 13 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 5.83 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 34 | 2014 | R | 45 | 6 | 0 | 2 | 0 | 1.23 | .267 | 0.82 | 3.9 | 3.9 | 7.7 | 7.1 | 3 | 1 | 1 | 1 | 3 | 6 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 5.29 |
| RP | Rodriguez, F.Rodriguez, Francisco >> | 32 | 2014 | R | 28 | 4 | 0 | 0 | 0 | 4.50 | .250 | 1.00 | 4.5 | 4.5 | 13.5 | 4.0 | 2 | 2 | 2 | 2 | 2 | 6 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 8.00 |
| RP | Watson, T.Watson, Tony >> | 29 | 2014 | L | 16 | 4 | 0 | 0 | 0 | 3.00 | .217 | 0.83 | 4.5 | 3.0 | 13.5 | 6.0 | 3 | 2 | 2 | 0 | 2 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.00 |
| SP | Marquez, G.Marquez, German >> | 23 | 2018 | R | 16 | 2 | 0 | 1 | 0 | 0.00 | .333 | 1.50 | - | - | - | 0.2 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |