| SP | Martinez, P.Martinez, Pedro † >> | 29 | 2000 | R | 100 | 31 | 31 | 14 | 11 | 2.38 | .255 | 1.00 | 6.8 | 2.2 | 8.8 | 256.2 | 193 | 70 | 68 | 11 | 63 | 251 | 10 | 0 | 0 | 4 | 24 | 7 | 0 | 2.42 |
| SP | Leonard, D.Leonard, Dutch † >> | 22 | 1914 | L | 92 | 30 | 30 | 14 | 8 | 2.68 | .256 | 1.02 | 6.4 | 2.9 | 5.2 | 221.1 | 156 | 72 | 66 | 10 | 70 | 128 | 3 | 0 | 0 | 3 | 23 | 3 | 4 | 3.42 |
| SP | Steele, E.Steele, Elmer >> | 22 | 1908 | R | 80 | 30 | 30 | 12 | 15 | 3.39 | .279 | 1.14 | 8.1 | 2.2 | 4.5 | 238.2 | 214 | 97 | 90 | 23 | 57 | 119 | 14 | 0 | 0 | 5 | 17 | 6 | 0 | 4.05 |
| RP | Uehara, K.Uehara, Koji >> | 38 | 2013 | R | 98 | 70 | 0 | 5 | 4 | 1.91 | .273 | 1.11 | 8.0 | 2.0 | 8.8 | 80.0 | 71 | 20 | 17 | 2 | 18 | 78 | 0 | 9 | 3 | 0 | 0 | 1 | 0 | 2.09 |
| RP | Kimbrel, C.Kimbrel, Craig >> | 29 | 2017 | R | 97 | 57 | 0 | 5 | 6 | 3.08 | .290 | 1.22 | 6.5 | 4.6 | 8.9 | 61.1 | 44 | 21 | 21 | 5 | 31 | 60 | 0 | 10 | 0 | 0 | 0 | 0 | 2 | 3.62 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 94 | 29 | 0 | 2 | 4 | 3.82 | .227 | 0.88 | 6.0 | 1.9 | 7.6 | 33.0 | 22 | 14 | 14 | 3 | 7 | 28 | 0 | 4 | 1 | 0 | 0 | 0 | 0 | 3.12 |
| RP | Brasier, R.Brasier, Ryan >> | 30 | 2018 | R | 84 | 18 | 0 | 0 | 1 | 1.33 | .274 | 1.08 | 8.1 | 1.8 | 6.8 | 20.1 | 18 | 3 | 3 | 3 | 4 | 15 | 0 | 3 | 1 | 0 | 0 | 1 | 1 | 4.20 |