| SP | Richard, J.Richard, J.R. >> | 30 | 1980 | R | 90 | 17 | 17 | 9 | 4 | 3.17 | .298 | 1.26 | 7.8 | 3.6 | 7.1 | 116.1 | 100 | 46 | 41 | 12 | 47 | 92 | 0 | 0 | 0 | 0 | 14 | 1 | 1 | 4.00 |
| SP | Marichal, J.Marichal, Juan >> | 29 | 1966 | R | 76 | 15 | 15 | 3 | 6 | 6.45 | .341 | 1.54 | 11.0 | 2.8 | 5.3 | 99.0 | 121 | 73 | 71 | 19 | 31 | 58 | 3 | 0 | 0 | 0 | 3 | 2 | 0 | 5.32 |
| CL | Doolittle, S.Doolittle, Sean † >> | 31 | 2018 | L | 99 | 42 | 0 | 3 | 6 | 3.74 | .297 | 1.25 | 8.8 | 2.5 | 9.4 | 43.1 | 42 | 18 | 18 | 3 | 12 | 45 | 0 | 21 | 2 | 0 | 0 | 1 | 4 | 2.72 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 92 | 44 | 0 | 3 | 0 | 2.56 | .262 | 1.06 | 5.7 | 4.0 | 9.0 | 52.2 | 33 | 18 | 15 | 6 | 23 | 52 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 3.83 |
| RP | Gallegos, G.Gallegos, Giovanny >> | 27 | 2019 | R | 82 | 30 | 0 | 3 | 0 | 3.38 | .320 | 1.41 | 7.4 | 5.6 | 11.1 | 34.2 | 28 | 16 | 13 | 4 | 21 | 42 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 3.91 |
| RP | Soria, J.Soria, Joakim >> | 24 | 2008 | R | 67 | 26 | 0 | 1 | 0 | 4.26 | .303 | 1.30 | 5.4 | 6.5 | 9.0 | 25.1 | 15 | 12 | 12 | 5 | 18 | 25 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 5.76 |