| SP | Martinez, P.Martinez, Pedro # $ >> | 29 | 2000 | R | 100 | 36 | 36 | 15 | 15 | 4.81 | .311 | 1.34 | 9.9 | 2.2 | 8.0 | 215.1 | 236 | 118 | 115 | 35 | 52 | 192 | 4 | 0 | 0 | 2 | 16 | 4 | 2 | 4.11 |
| SP | Bender, C.Bender, Chief >> | 26 | 1910 | R | 71 | 31 | 30 | 9 | 10 | 5.39 | .330 | 1.44 | 10.1 | 2.9 | 5.9 | 170.1 | 191 | 106 | 102 | 20 | 54 | 112 | 5 | 1 | 0 | 1 | 11 | 7 | 7 | 4.29 |
| CL | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 98 | 90 | 0 | 6 | 9 | 4.17 | .291 | 1.23 | 8.5 | 2.7 | 9.2 | 105.2 | 99 | 52 | 49 | 9 | 31 | 107 | 0 | 31 | 8 | 0 | 0 | 0 | 2 | 2.96 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 92 | 94 | 0 | 4 | 4 | 4.28 | .323 | 1.40 | 9.0 | 3.6 | 7.0 | 111.1 | 111 | 57 | 53 | 17 | 45 | 86 | 0 | 4 | 4 | 0 | 0 | 3 | 0 | 4.74 |
| RP | Gallegos, G.Gallegos, Giovanny >> | 27 | 2019 | R | 82 | 71 | 0 | 10 | 1 | 5.15 | .303 | 1.31 | 8.5 | 3.3 | 8.4 | 92.2 | 87 | 55 | 53 | 16 | 34 | 86 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 4.50 |