| SP | McDowell, S.McDowell, Sam >> | 26 | 1968 | L | 45 | 30 | 30 | 13 | 11 | 3.54 | .307 | 1.31 | 6.7 | 5.1 | 7.5 | 211.0 | 157 | 93 | 83 | 18 | 119 | 177 | 6 | 0 | 0 | 1 | 20 | 5 | 10 | 4.19 |
| SP | Kershaw, C.Kershaw, Clayton † >> | 28 | 2016 | L | 99 | 31 | 31 | 19 | 4 | 3.03 | .249 | 0.98 | 7.1 | 1.7 | 7.7 | 237.2 | 187 | 85 | 80 | 26 | 45 | 202 | 3 | 0 | 0 | 1 | 22 | 4 | 7 | 3.34 |
| SP | Cole, G.Cole, Gerrit # >> | 28 | 2019 | R | 91 | 33 | 33 | 14 | 12 | 4.92 | .305 | 1.29 | 9.3 | 2.3 | 8.1 | 208.1 | 215 | 116 | 114 | 40 | 54 | 187 | 2 | 0 | 0 | 1 | 16 | 5 | 1 | 4.55 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 79 | 64 | 0 | 9 | 3 | 2.37 | .232 | 0.89 | 5.2 | 2.8 | 6.5 | 79.2 | 46 | 22 | 21 | 6 | 25 | 57 | 0 | 6 | 3 | 0 | 0 | 1 | 3 | 3.53 |
| RP | Boxberger, B.Boxberger, Brad # >> | 26 | 2014 | R | 83 | 47 | 0 | 5 | 3 | 4.15 | .257 | 1.04 | 6.1 | 3.3 | 9.0 | 52.0 | 35 | 24 | 24 | 5 | 19 | 52 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 3.35 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 92 | 39 | 0 | 2 | 4 | 3.26 | .284 | 1.16 | 7.6 | 3.1 | 8.8 | 38.2 | 32 | 14 | 14 | 5 | 13 | 37 | 0 | 2 | 1 | 0 | 0 | 1 | 0 | 3.87 |
| RP | Wilhelm, H.Wilhelm, Hoyt >> | 43 | 1965 | R | 68 | 17 | 0 | 1 | 0 | 5.06 | .297 | 1.27 | 8.6 | 3.0 | 5.1 | 21.1 | 20 | 12 | 12 | 1 | 7 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3.48 |
| RP | Messersmith, A.Messersmith, Andy >> | 23 | 1968 | R | 57 | 8 | 0 | 1 | 0 | 0.00 | .107 | 0.36 | 1.1 | 2.3 | 6.8 | 8.1 | 1 | 0 | 0 | 0 | 2 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.25 |
| SP | Johnson, R.Johnson, Randy # >> | 41 | 2004 | L | 84 | 14 | 5 | 0 | 3 | 3.69 | .246 | 0.95 | 7.4 | 1.2 | 6.7 | 75.2 | 62 | 32 | 31 | 4 | 10 | 56 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 2.68 |
| CL | Adams, M.Adams, Mike † >> | 31 | 2009 | R | 99 | 62 | 0 | 4 | 5 | 2.10 | .237 | 0.93 | 5.8 | 2.7 | 7.3 | 64.1 | 41 | 15 | 15 | 4 | 19 | 52 | 0 | 40 | 3 | 0 | 0 | 0 | 0 | 3.08 |