| SP | Greinke, Z.Greinke, Zack >> | 32 | 2015 | R | 94 | 28 | 28 | 9 | 12 | 4.51 | .313 | 1.32 | 8.8 | 3.1 | 6.3 | 175.2 | 171 | 96 | 88 | 26 | 61 | 123 | 1 | 0 | 0 | 0 | 15 | 8 | 5 | 4.71 |
| RP | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 98 | 72 | 0 | 6 | 1 | 3.11 | .285 | 1.16 | 6.9 | 3.6 | 9.1 | 81.0 | 62 | 28 | 28 | 9 | 32 | 82 | 0 | 4 | 3 | 0 | 0 | 3 | 2 | 3.72 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 91 | 69 | 0 | 5 | 5 | 2.39 | .249 | 0.96 | 5.6 | 3.2 | 9.3 | 94.1 | 58 | 27 | 25 | 8 | 33 | 97 | 0 | 5 | 1 | 0 | 0 | 3 | 0 | 3.19 |
| RP | Rodney, F.Rodney, Fernando >> | 35 | 2012 | R | 79 | 58 | 0 | 3 | 1 | 3.34 | .289 | 1.21 | 8.3 | 2.7 | 7.5 | 64.2 | 59 | 24 | 24 | 5 | 19 | 53 | 0 | 7 | 4 | 0 | 0 | 1 | 2 | 3.30 |
| RP | Betancourt, R.Betancourt, Rafael >> | 32 | 2007 | R | 74 | 47 | 0 | 2 | 4 | 5.88 | .316 | 1.35 | 9.7 | 2.4 | 10.0 | 52.0 | 56 | 34 | 34 | 14 | 14 | 58 | 0 | 5 | 1 | 0 | 0 | 2 | 0 | 5.19 |
| RP | Bailey, A.Bailey, Andrew >> | 25 | 2009 | R | 64 | 33 | 0 | 0 | 2 | 5.54 | .333 | 1.42 | 7.8 | 5.1 | 8.3 | 37.1 | 32 | 24 | 23 | 9 | 21 | 34 | 0 | 1 | 1 | 0 | 0 | 3 | 3 | 6.27 |
| SP | Hamels, C.Hamels, Cole >> | 28 | 2011 | L | 63 | 2 | 1 | 1 | 0 | 0.00 | .148 | 0.52 | 2.6 | 2.6 | 9.0 | 7.2 | 2 | 0 | 0 | 0 | 2 | 7 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1.86 |
| SP | Valenzuela, F.Valenzuela, Fernando >> | 21 | 1981 | L | 61 | 21 | 0 | 3 | 6 | 6.08 | .337 | 1.50 | 9.7 | 3.8 | 7.4 | 40.0 | 43 | 27 | 27 | 9 | 17 | 33 | 0 | 0 | 3 | 0 | 0 | 1 | 0 | 5.63 |