| SP | Steele, E.Steele, Elmer † >> | 22 | 1908 | R | 81 | 25 | 25 | 13 | 4 | 3.75 | .295 | 1.24 | 9.4 | 1.7 | 5.4 | 187.0 | 195 | 84 | 78 | 19 | 36 | 112 | 6 | 0 | 0 | 1 | 14 | 4 | 0 | 3.76 |
| SP | Martinez, P.Martinez, Pedro >> | 30 | 2001 | R | 83 | 24 | 24 | 8 | 7 | 4.84 | .323 | 1.42 | 9.5 | 3.3 | 9.8 | 152.1 | 160 | 88 | 82 | 24 | 56 | 165 | 0 | 0 | 0 | 0 | 11 | 2 | 4 | 4.03 |
| SP | Morgan, C.Morgan, Cy † >> | 29 | 1907 | R | 77 | 24 | 24 | 16 | 6 | 3.73 | .313 | 1.35 | 8.4 | 3.7 | 4.8 | 178.1 | 167 | 76 | 74 | 9 | 74 | 94 | 3 | 0 | 0 | 2 | 14 | 3 | 0 | 3.90 |
| RP | Uehara, K.Uehara, Koji † >> | 38 | 2013 | R | 100 | 68 | 0 | 5 | 3 | 1.98 | .229 | 0.89 | 5.0 | 3.0 | 7.9 | 91.0 | 51 | 23 | 20 | 8 | 30 | 80 | 0 | 13 | 4 | 0 | 0 | 0 | 0 | 3.37 |
| RP | Brasier, R.Brasier, Ryan † >> | 30 | 2018 | R | 88 | 49 | 0 | 4 | 4 | 2.88 | .287 | 1.17 | 8.0 | 2.6 | 6.4 | 56.1 | 50 | 21 | 18 | 5 | 16 | 40 | 0 | 12 | 2 | 0 | 0 | 2 | 1 | 3.70 |
| RP | Miller, A.Miller, Andrew >> | 29 | 2014 | L | 85 | 34 | 0 | 3 | 1 | 3.41 | .284 | 1.14 | 6.3 | 3.9 | 8.3 | 37.0 | 26 | 14 | 14 | 3 | 16 | 34 | 0 | 4 | 1 | 0 | 0 | 2 | 1 | 3.68 |
| RP | Kimbrel, C.Kimbrel, Craig >> | 28 | 2016 | R | 60 | 14 | 0 | 2 | 2 | 3.46 | .328 | 1.46 | 4.8 | 8.3 | 9.0 | 13.0 | 7 | 7 | 5 | 1 | 12 | 13 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 4.77 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 30 | 2010 | R | 30 | 20 | 0 | 0 | 0 | 5.03 | .322 | 1.42 | 9.0 | 4.3 | 8.5 | 19.2 | 19 | 11 | 11 | 2 | 9 | 18 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 3.89 |
| SP | Cicotte, E.Cicotte, Eddie >> | 25 | 1909 | R | 46 | 12 | 1 | 4 | 1 | 4.34 | .331 | 1.46 | 9.2 | 4.0 | 4.7 | 56.0 | 57 | 27 | 27 | 6 | 25 | 29 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4.75 |