| SP | Steele, E.Steele, Elmer >> | 22 | 1908 | R | 84 | 26 | 26 | 15 | 3 | 3.18 | .286 | 1.18 | 8.2 | 2.5 | 3.5 | 181.1 | 164 | 70 | 64 | 10 | 50 | 71 | 4 | 0 | 0 | 1 | 18 | 4 | 0 | 3.83 |
| SP | Morgan, C.Morgan, Cy † >> | 29 | 1907 | R | 76 | 26 | 26 | 15 | 6 | 3.04 | .290 | 1.20 | 8.0 | 2.8 | 5.5 | 189.1 | 168 | 81 | 64 | 14 | 59 | 116 | 6 | 0 | 0 | 0 | 18 | 5 | 1 | 3.75 |
| CL | Brasier, R.Brasier, Ryan >> | 30 | 2018 | R | 89 | 53 | 0 | 1 | 3 | 3.30 | .271 | 1.08 | 6.9 | 2.9 | 5.0 | 60.0 | 46 | 23 | 22 | 5 | 19 | 33 | 0 | 30 | 5 | 0 | 0 | 2 | 0 | 4.03 |
| RP | Miller, A.Miller, Andrew >> | 29 | 2014 | L | 78 | 67 | 0 | 4 | 3 | 3.84 | .310 | 1.32 | 7.4 | 4.6 | 9.9 | 93.2 | 76 | 40 | 40 | 12 | 48 | 102 | 0 | 4 | 2 | 0 | 0 | 2 | 3 | 4.10 |
| RP | Uehara, K.Uehara, Koji >> | 41 | 2016 | R | 60 | 45 | 0 | 4 | 2 | 4.47 | .293 | 1.24 | 8.3 | 3.0 | 9.9 | 48.1 | 44 | 25 | 24 | 10 | 16 | 53 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 4.50 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 31 | 2011 | R | 56 | 40 | 0 | 4 | 4 | 4.50 | .303 | 1.28 | 9.4 | 2.2 | 10.0 | 46.0 | 48 | 26 | 23 | 5 | 11 | 51 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 2.98 |