| SP | Sale, C.Sale, Chris $$ >> | 29 | 2018 | L | 98 | 21 | 21 | 5 | 7 | 3.99 | .302 | 1.29 | 8.1 | 3.6 | 10.2 | 128.2 | 115 | 58 | 57 | 9 | 51 | 145 | 0 | 0 | 0 | 0 | 12 | 1 | 0 | 2.87 |
| SP | Leonard, D.Leonard, Dutch $$ >> | 22 | 1914 | L | 91 | 21 | 21 | 6 | 6 | 3.72 | .313 | 1.36 | 7.6 | 4.6 | 5.2 | 121.0 | 102 | 54 | 50 | 8 | 62 | 70 | 0 | 0 | 0 | 0 | 12 | 1 | 1 | 4.26 |
| SP | Mathewson, C.Mathewson, Christy >> | 28 | 1908 | R | 83 | 20 | 20 | 10 | 7 | 4.78 | .307 | 1.30 | 9.2 | 2.5 | 4.9 | 131.2 | 134 | 70 | 70 | 14 | 37 | 72 | 2 | 0 | 0 | 1 | 10 | 4 | 2 | 4.23 |
| SP | Bender, C.Bender, Chief >> | 26 | 1910 | R | 72 | 20 | 20 | 10 | 8 | 4.03 | .320 | 1.40 | 9.1 | 3.5 | 4.8 | 143.0 | 145 | 70 | 64 | 20 | 55 | 77 | 5 | 0 | 0 | 0 | 10 | 2 | 3 | 4.94 |
| CL | Uehara, K.Uehara, Koji † >> | 38 | 2013 | R | 100 | 42 | 0 | 2 | 5 | 2.95 | .251 | 0.98 | 7.1 | 1.9 | 9.6 | 42.2 | 33 | 14 | 14 | 4 | 9 | 45 | 0 | 21 | 5 | 0 | 0 | 1 | 0 | 2.81 |
| SU | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 92 | 38 | 0 | 2 | 3 | 4.17 | .305 | 1.32 | 7.7 | 4.2 | 7.7 | 41.0 | 35 | 19 | 19 | 4 | 19 | 35 | 0 | 1 | 5 | 0 | 0 | 0 | 0 | 3.95 |
| RP | Devine, J.Devine, Joey >> | 25 | 2008 | R | 80 | 45 | 0 | 5 | 4 | 4.43 | .326 | 1.41 | 8.6 | 4.3 | 7.7 | 42.2 | 40 | 23 | 21 | 4 | 20 | 36 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 4.10 |
| SP | Hunter, C.Hunter, Catfish >> | 26 | 1972 | R | 81 | 5 | 0 | 0 | 1 | 9.00 | .368 | 1.75 | 11.3 | 4.5 | 0.0 | 4.0 | 5 | 4 | 4 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 4.50 |