| SP | Martinez, P.Martinez, Pedro # >> | 29 | 2000 | R | 100 | 12 | 12 | 4 | 3 | 3.86 | .293 | 1.21 | 8.7 | 2.2 | 9.8 | 70.0 | 68 | 35 | 30 | 14 | 17 | 76 | 2 | 0 | 0 | 1 | 7 | 2 | 1 | 4.24 |
| SP | Cole, G.Cole, Gerrit # >> | 28 | 2019 | R | 92 | 12 | 12 | 4 | 4 | 4.98 | .320 | 1.35 | 9.0 | 3.3 | 8.0 | 72.1 | 72 | 41 | 40 | 12 | 26 | 64 | 0 | 0 | 0 | 0 | 7 | 4 | 1 | 4.64 |
| SP | Hunter, C.Hunter, Catfish >> | 26 | 1972 | R | 81 | 13 | 12 | 2 | 4 | 5.70 | .341 | 1.52 | 10.6 | 3.0 | 4.6 | 71.0 | 84 | 49 | 45 | 11 | 24 | 36 | 2 | 1 | 0 | 0 | 4 | 2 | 2 | 5.10 |
| CL | Uehara, K.Uehara, Koji >> | 38 | 2013 | R | 100 | 36 | 0 | 1 | 4 | 4.62 | .316 | 1.38 | 8.1 | 4.4 | 8.5 | 39.0 | 35 | 21 | 20 | 6 | 19 | 37 | 0 | 15 | 3 | 0 | 0 | 0 | 0 | 4.56 |
| SU | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 92 | 32 | 0 | 0 | 1 | 3.38 | .320 | 1.30 | 7.9 | 4.0 | 10.1 | 34.2 | 30 | 13 | 13 | 2 | 15 | 38 | 0 | 0 | 1 | 0 | 0 | 4 | 0 | 3.21 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 79 | 28 | 0 | 3 | 1 | 4.02 | .299 | 1.28 | 8.1 | 3.5 | 8.4 | 31.1 | 28 | 14 | 14 | 2 | 12 | 29 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 3.13 |