| SP | Buchholz, C.Buchholz, Clay # >> | 29 | 2013 | R | 81 | 33 | 33 | 15 | 16 | 5.16 | .337 | 1.47 | 9.3 | 3.9 | 7.9 | 212.2 | 220 | 125 | 122 | 28 | 93 | 186 | 4 | 0 | 0 | 0 | 15 | 12 | 3 | 4.45 |
| SP | Paxton, J.Paxton, James >> | 29 | 2018 | L | 46 | 32 | 32 | 10 | 13 | 5.78 | .345 | 1.51 | 10.1 | 3.5 | 10.7 | 166.2 | 187 | 108 | 107 | 27 | 65 | 198 | 0 | 0 | 0 | 0 | 11 | 11 | 8 | 4.10 |
| SP | Archer, C.Archer, Chris >> | 26 | 2015 | R | 42 | 31 | 31 | 8 | 15 | 6.42 | .358 | 1.63 | 10.7 | 4.0 | 9.5 | 169.2 | 201 | 123 | 121 | 37 | 76 | 178 | 0 | 0 | 0 | 0 | 10 | 7 | 12 | 5.21 |
| RP | Parker, B.Parker, Blake # >> | 32 | 2017 | R | 79 | 79 | 0 | 4 | 3 | 4.67 | .312 | 1.35 | 9.6 | 2.7 | 10.8 | 98.1 | 104 | 52 | 51 | 15 | 29 | 118 | 0 | 7 | 3 | 0 | 0 | 1 | 5 | 3.50 |
| RP | Ottavino, A.Ottavino, Adam >> | 32 | 2018 | R | 61 | 64 | 0 | 4 | 5 | 3.74 | .300 | 1.25 | 6.4 | 4.9 | 11.7 | 79.1 | 56 | 33 | 33 | 10 | 43 | 103 | 0 | 6 | 1 | 0 | 0 | 3 | 4 | 3.78 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 34 | 2014 | R | 47 | 57 | 0 | 2 | 1 | 3.25 | .325 | 1.32 | 8.9 | 3.1 | 6.4 | 63.2 | 62 | 23 | 23 | 7 | 22 | 45 | 0 | 5 | 1 | 0 | 0 | 8 | 1 | 4.44 |
| RP | Smith, C.Smith, Carson >> | 25 | 2015 | R | 37 | 44 | 0 | 1 | 1 | 2.36 | .295 | 1.24 | 7.5 | 3.7 | 9.2 | 53.1 | 44 | 14 | 14 | 4 | 22 | 54 | 0 | 1 | 0 | 0 | 0 | 1 | 3 | 3.25 |
| SP | Zimmermann, J.Zimmermann, Jordan >> | 28 | 2014 | R | 36 | 18 | 0 | 3 | 1 | 2.61 | .333 | 1.35 | 8.1 | 4.5 | 7.7 | 20.2 | 18 | 6 | 6 | 0 | 10 | 17 | 0 | 1 | 1 | 0 | 0 | 3 | 2 | 3.25 |