| SP | Nelson, R.Nelson, Roger >> | 28 | 1972 | R | 87 | 19 | 19 | 11 | 4 | 3.51 | .294 | 1.21 | 8.3 | 2.6 | 6.5 | 102.2 | 94 | 41 | 40 | 8 | 30 | 74 | 0 | 0 | 0 | 0 | 6 | 4 | 3 | 3.57 |
| CL | Feliz, N.Feliz, Neftali † >> | 21 | 2009 | R | 97 | 36 | 0 | 2 | 1 | 1.37 | .285 | 1.17 | 6.0 | 4.6 | 9.2 | 39.1 | 26 | 6 | 6 | 2 | 20 | 40 | 0 | 26 | 4 | 0 | 0 | 1 | 0 | 3.23 |
| SU | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 91 | 39 | 0 | 1 | 2 | 4.24 | .328 | 1.44 | 9.0 | 4.1 | 9.7 | 40.1 | 40 | 19 | 19 | 5 | 18 | 43 | 0 | 2 | 3 | 0 | 0 | 1 | 0 | 3.90 |
| RP | Saito, T.Saito, Takashi >> | 37 | 2007 | R | 90 | 49 | 0 | 1 | 1 | 2.08 | .260 | 1.04 | 6.3 | 3.2 | 9.0 | 60.2 | 42 | 18 | 14 | 6 | 21 | 60 | 0 | 0 | 3 | 0 | 0 | 1 | 0 | 3.40 |
| RP | Clippard, T.Clippard, Tyler >> | 26 | 2011 | R | 77 | 20 | 0 | 1 | 0 | 6.27 | .333 | 1.50 | 8.5 | 5.5 | 9.0 | 18.2 | 17 | 13 | 13 | 5 | 11 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.44 |
| RP | Gregerson, L.Gregerson, Luke >> | 26 | 2010 | R | 69 | 18 | 0 | 0 | 1 | 5.29 | .329 | 1.47 | 11.1 | 2.1 | 11.1 | 17.0 | 21 | 10 | 10 | 1 | 4 | 21 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2.00 |
| SP | Strasburg, S.Strasburg, Stephen >> | 28 | 2017 | R | 66 | 16 | 0 | 4 | 1 | 4.26 | .288 | 1.18 | 8.2 | 2.6 | 10.3 | 67.2 | 61 | 32 | 32 | 11 | 19 | 77 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 3.78 |