| SP | Verlander, J.Verlander, Justin >> | 36 | 2019 | R | 100 | 28 | 28 | 10 | 6 | 3.82 | .287 | 1.19 | 8.4 | 2.3 | 10.7 | 193.1 | 180 | 86 | 82 | 27 | 50 | 230 | 1 | 0 | 0 | 0 | 17 | 3 | 3 | 3.26 |
| SP | Carrasco, C.Carrasco, Carlos >> | 27 | 2014 | R | 83 | 27 | 27 | 0 | 7 | 5.73 | .335 | 1.48 | 10.3 | 3.1 | 9.4 | 97.1 | 111 | 63 | 62 | 9 | 33 | 101 | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 3.24 |
| SP | Giolito, L.Giolito, Lucas >> | 24 | 2019 | R | 72 | 26 | 26 | 6 | 11 | 5.38 | .347 | 1.58 | 10.4 | 3.8 | 8.9 | 150.2 | 174 | 101 | 90 | 29 | 64 | 149 | 0 | 0 | 0 | 0 | 11 | 2 | 3 | 4.85 |
| SP | Weaver, J.Weaver, Jered # >> | 29 | 2011 | R | 71 | 26 | 26 | 10 | 11 | 5.62 | .327 | 1.43 | 10.1 | 2.7 | 8.6 | 174.2 | 196 | 116 | 109 | 34 | 53 | 166 | 4 | 0 | 0 | 0 | 8 | 6 | 2 | 4.65 |
| SP | Porcello, R.Porcello, Rick >> | 27 | 2016 | R | 56 | 26 | 26 | 5 | 12 | 6.75 | .355 | 1.62 | 12.8 | 1.8 | 7.6 | 154.2 | 219 | 118 | 116 | 30 | 31 | 130 | 1 | 0 | 0 | 0 | 7 | 5 | 1 | 4.55 |
| RP | Doolittle, S.Doolittle, Sean >> | 31 | 2018 | L | 99 | 70 | 0 | 9 | 2 | 3.95 | .297 | 1.21 | 8.6 | 2.4 | 10.1 | 95.2 | 91 | 43 | 42 | 7 | 25 | 107 | 0 | 6 | 4 | 0 | 0 | 5 | 1 | 2.65 |
| RP | Robertson, D.Robertson, David >> | 32 | 2017 | R | 86 | 67 | 0 | 7 | 3 | 4.32 | .310 | 1.31 | 8.2 | 3.7 | 11.1 | 85.1 | 77 | 42 | 41 | 18 | 35 | 105 | 0 | 7 | 2 | 0 | 0 | 3 | 6 | 4.62 |
| RP | Workman, B.Workman, Brandon >> | 30 | 2019 | R | 57 | 44 | 0 | 0 | 3 | 3.09 | .352 | 1.63 | 6.4 | 8.3 | 9.0 | 55.1 | 39 | 20 | 19 | 0 | 51 | 55 | 0 | 2 | 3 | 0 | 0 | 0 | 4 | 3.78 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 34 | 2014 | R | 48 | 50 | 0 | 4 | 2 | 2.05 | .287 | 1.21 | 8.3 | 2.7 | 8.7 | 61.1 | 56 | 14 | 14 | 5 | 18 | 59 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 3.02 |
| SP | Paxton, J.Paxton, James >> | 29 | 2018 | L | 46 | 35 | 0 | 4 | 9 | 6.25 | .391 | 1.90 | 12.9 | 4.5 | 11.0 | 44.2 | 63 | 31 | 31 | 7 | 22 | 54 | 0 | 5 | 2 | 0 | 0 | 1 | 1 | 4.18 |