| SP | Kershaw, C.Kershaw, Clayton # >> | 28 | 2016 | L | 98 | 5 | 5 | 1 | 3 | 7.15 | .342 | 1.56 | 11.1 | 2.9 | 11.1 | 34.0 | 42 | 27 | 27 | 9 | 11 | 42 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4.94 |
| SP | Buchholz, C.Buchholz, Clay >> | 29 | 2013 | R | 81 | 5 | 5 | 1 | 3 | 4.33 | .303 | 1.27 | 8.2 | 3.3 | 4.9 | 35.1 | 32 | 17 | 17 | 7 | 13 | 19 | 1 | 0 | 0 | 0 | 2 | 1 | 0 | 5.71 |
| SP | Bauer, T.Bauer, Trevor >> | 27 | 2018 | R | 60 | 4 | 4 | 0 | 1 | 9.43 | .394 | 1.95 | 12.0 | 5.6 | 10.3 | 21.0 | 28 | 22 | 22 | 4 | 13 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.05 |
| SP | Paxton, J.Paxton, James >> | 29 | 2018 | L | 45 | 4 | 4 | 1 | 2 | 4.84 | .337 | 1.52 | 9.0 | 4.9 | 9.4 | 22.1 | 22 | 14 | 12 | 3 | 12 | 23 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 4.32 |
| RP | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 99 | 14 | 0 | 0 | 0 | 6.88 | .338 | 1.53 | 12.7 | 1.1 | 11.1 | 17.0 | 24 | 14 | 13 | 3 | 2 | 21 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 3.18 |
| RP | Hochevar, L.Hochevar, Luke >> | 30 | 2013 | R | 80 | 10 | 0 | 2 | 1 | 3.29 | .359 | 1.61 | 11.8 | 3.5 | 9.7 | 13.2 | 17 | 5 | 5 | 1 | 5 | 14 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 3.23 |
| RP | Ottavino, A.Ottavino, Adam >> | 32 | 2018 | R | 60 | 12 | 0 | 1 | 2 | 6.00 | .357 | 1.58 | 9.0 | 5.3 | 9.0 | 12.0 | 12 | 8 | 8 | 2 | 7 | 12 | 0 | 2 | 1 | 0 | 0 | 1 | 0 | 5.17 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 34 | 2014 | R | 45 | 10 | 0 | 0 | 1 | 5.00 | .386 | 1.78 | 13.0 | 3.0 | 10.0 | 9.0 | 13 | 5 | 5 | 1 | 3 | 10 | 0 | 1 | 2 | 0 | 0 | 1 | 1 | 3.56 |
| RP | Smith, C.Smith, Carson >> | 25 | 2015 | R | 35 | 6 | 0 | 0 | 0 | 5.68 | .387 | 1.89 | 12.0 | 6.0 | 16.5 | 6.1 | 8 | 4 | 4 | 1 | 4 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3.50 |