| SP | Flaherty, J.Flaherty, Jack # >> | 23 | 2019 | R | 82 | 22 | 22 | 8 | 11 | 4.78 | .327 | 1.41 | 9.2 | 3.5 | 9.1 | 131.2 | 134 | 71 | 70 | 21 | 51 | 132 | 0 | 0 | 0 | 0 | 10 | 7 | 4 | 4.40 |
| SP | Hudson, D.Hudson, Daniel >> | 23 | 2010 | R | 72 | 21 | 21 | 6 | 8 | 5.10 | .326 | 1.41 | 9.3 | 3.3 | 6.5 | 132.1 | 137 | 77 | 75 | 19 | 49 | 95 | 0 | 0 | 0 | 0 | 8 | 6 | 6 | 4.68 |
| SP | Schilling, C.Schilling, Curt >> | 36 | 2002 | R | 65 | 21 | 21 | 9 | 8 | 6.31 | .336 | 1.48 | 9.9 | 3.4 | 10.0 | 128.1 | 141 | 91 | 90 | 22 | 49 | 142 | 2 | 0 | 0 | 1 | 6 | 5 | 2 | 4.28 |
| SP | Valenzuela, F.Valenzuela, Fernando >> | 21 | 1981 | L | 61 | 20 | 20 | 7 | 6 | 4.11 | .310 | 1.33 | 7.6 | 4.3 | 7.2 | 138.0 | 117 | 63 | 63 | 17 | 66 | 111 | 4 | 0 | 0 | 1 | 13 | 3 | 3 | 4.49 |
| RP | Kimbrel, C.Kimbrel, Craig † >> | 24 | 2012 | R | 100 | 57 | 0 | 6 | 2 | 2.50 | .260 | 1.03 | 6.3 | 3.0 | 11.4 | 86.1 | 60 | 27 | 24 | 10 | 29 | 109 | 0 | 4 | 4 | 0 | 0 | 2 | 4 | 3.06 |
| RP | Feliz, N.Feliz, Neftali >> | 21 | 2009 | R | 97 | 49 | 0 | 6 | 4 | 2.63 | .296 | 1.25 | 7.5 | 3.7 | 9.8 | 65.0 | 54 | 19 | 19 | 6 | 27 | 71 | 0 | 6 | 3 | 0 | 0 | 1 | 0 | 3.31 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 91 | 39 | 0 | 1 | 1 | 5.15 | .342 | 1.56 | 10.3 | 4.0 | 10.7 | 43.2 | 49 | 26 | 25 | 5 | 19 | 51 | 0 | 5 | 1 | 0 | 0 | 0 | 0 | 3.47 |
| RP | Valverde, J.Valverde, Jose >> | 24 | 2003 | R | 63 | 23 | 0 | 2 | 0 | 3.67 | .314 | 1.37 | 7.3 | 5.0 | 9.0 | 27.0 | 22 | 13 | 11 | 4 | 15 | 27 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 4.59 |
| SP | Weaver, J.Weaver, Jered >> | 29 | 2011 | R | 54 | 7 | 2 | 0 | 2 | 7.04 | .333 | 1.50 | 12.0 | 1.8 | 6.0 | 15.1 | 20 | 13 | 12 | 6 | 3 | 10 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 7.47 |