| SP | Buchholz, C.Buchholz, Clay # >> | 29 | 2013 | R | 81 | 8 | 8 | 4 | 4 | 5.30 | .331 | 1.42 | 9.3 | 3.6 | 8.1 | 52.2 | 54 | 31 | 31 | 5 | 21 | 47 | 0 | 0 | 0 | 0 | 3 | 3 | 0 | 3.83 |
| SP | Paxton, J.Paxton, James >> | 29 | 2018 | L | 45 | 8 | 8 | 4 | 2 | 6.98 | .348 | 1.55 | 10.2 | 4.0 | 9.5 | 38.2 | 43 | 30 | 30 | 6 | 17 | 40 | 0 | 0 | 0 | 0 | 3 | 2 | 2 | 4.45 |
| SP | Archer, C.Archer, Chris >> | 26 | 2015 | R | 40 | 8 | 8 | 1 | 5 | 6.22 | .341 | 1.51 | 10.4 | 3.3 | 8.8 | 46.1 | 53 | 33 | 32 | 9 | 17 | 45 | 0 | 0 | 0 | 0 | 3 | 2 | 5 | 4.83 |
| RP | Parker, B.Parker, Blake >> | 32 | 2017 | R | 79 | 20 | 0 | 2 | 2 | 4.63 | .271 | 1.11 | 7.8 | 2.3 | 8.2 | 23.1 | 20 | 13 | 12 | 3 | 6 | 21 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 3.65 |
| RP | Ottavino, A.Ottavino, Adam >> | 32 | 2018 | R | 60 | 9 | 0 | 0 | 1 | 7.56 | .390 | 1.80 | 6.8 | 10.1 | 15.8 | 8.1 | 6 | 7 | 7 | 2 | 9 | 14 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 6.50 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 34 | 2014 | R | 45 | 12 | 0 | 0 | 0 | 2.84 | .387 | 1.74 | 9.8 | 6.8 | 9.0 | 12.2 | 13 | 4 | 4 | 1 | 9 | 12 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 4.83 |
| RP | Smith, C.Smith, Carson >> | 25 | 2015 | R | 35 | 13 | 0 | 1 | 0 | 1.04 | .246 | 0.98 | 6.9 | 2.1 | 6.9 | 17.1 | 13 | 2 | 2 | 1 | 4 | 13 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 2.94 |
| SP | Berrios, J.Berrios, Jose >> | 24 | 2018 | R | 34 | 6 | 0 | 1 | 1 | 12.79 | .486 | 2.84 | 19.5 | 7.5 | 4.5 | 6.1 | 13 | 9 | 9 | 1 | 5 | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 6.67 |