| SP | Johnson, W.Johnson, Walter † $ >> | 26 | 1913 | R | 95 | 35 | 35 | 17 | 11 | 3.17 | .282 | 1.17 | 8.2 | 2.3 | 4.7 | 250.0 | 227 | 101 | 88 | 21 | 65 | 131 | 1 | 0 | 0 | 1 | 24 | 3 | 2 | 3.86 |
| SP | Cole, G.Cole, Gerrit # >> | 28 | 2019 | R | 91 | 34 | 34 | 14 | 12 | 6.31 | .353 | 1.60 | 10.2 | 4.2 | 9.4 | 189.2 | 214 | 135 | 133 | 22 | 89 | 197 | 0 | 0 | 0 | 0 | 13 | 7 | 3 | 3.95 |
| SP | Brown, M.Brown, Mordecai >> | 32 | 1908 | R | 85 | 33 | 33 | 16 | 11 | 3.53 | .272 | 1.11 | 7.7 | 2.3 | 4.2 | 240.0 | 206 | 101 | 94 | 19 | 60 | 111 | 12 | 0 | 0 | 1 | 21 | 3 | 7 | 3.89 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 92 | 70 | 0 | 6 | 4 | 4.27 | .320 | 1.41 | 8.5 | 4.2 | 9.3 | 78.0 | 74 | 38 | 37 | 9 | 36 | 81 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3.81 |
| RP | Balfour, G.Balfour, Grant >> | 31 | 2008 | R | 76 | 55 | 0 | 6 | 1 | 3.66 | .295 | 1.24 | 7.2 | 4.0 | 9.0 | 59.0 | 47 | 26 | 24 | 4 | 26 | 59 | 0 | 3 | 1 | 0 | 0 | 1 | 5 | 3.25 |
| RP | Soria, J.Soria, Joakim >> | 24 | 2008 | R | 67 | 28 | 0 | 2 | 4 | 4.55 | .310 | 1.35 | 7.4 | 5.0 | 5.0 | 29.2 | 24 | 15 | 15 | 7 | 16 | 16 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 6.69 |
| SU | Devine, J.Devine, Joey >> | 25 | 2008 | R | 80 | 44 | 0 | 0 | 1 | 2.74 | .281 | 1.15 | 6.5 | 3.9 | 9.6 | 46.0 | 33 | 14 | 14 | 2 | 20 | 49 | 0 | 3 | 2 | 0 | 0 | 1 | 0 | 2.80 |