| SP | Greinke, Z.Greinke, Zack # >> | 32 | 2015 | R | 92 | 34 | 34 | 16 | 11 | 3.70 | .290 | 1.20 | 8.6 | 2.2 | 8.3 | 248.1 | 237 | 104 | 102 | 34 | 61 | 229 | 6 | 0 | 0 | 4 | 19 | 6 | 8 | 3.75 |
| SP | Corbin, P.Corbin, Patrick # >> | 28 | 2018 | L | 64 | 33 | 33 | 10 | 8 | 5.79 | .352 | 1.60 | 11.3 | 3.1 | 10.5 | 188.0 | 235 | 125 | 121 | 36 | 65 | 220 | 0 | 0 | 0 | 0 | 14 | 6 | 9 | 4.28 |
| SP | Bauer, T.Bauer, Trevor >> | 27 | 2018 | R | 60 | 32 | 32 | 15 | 11 | 4.88 | .331 | 1.45 | 9.9 | 3.1 | 10.0 | 199.0 | 219 | 116 | 108 | 25 | 69 | 222 | 1 | 0 | 0 | 1 | 14 | 8 | 7 | 3.56 |
| SP | Castillo, L.Castillo, Luis >> | 26 | 2019 | R | 49 | 32 | 32 | 10 | 10 | 5.56 | .353 | 1.60 | 9.5 | 5.0 | 10.6 | 176.1 | 185 | 112 | 109 | 33 | 98 | 207 | 0 | 0 | 0 | 0 | 11 | 5 | 2 | 4.84 |
| SP | Paxton, J.Paxton, James >> | 29 | 2018 | L | 45 | 31 | 31 | 4 | 17 | 6.40 | .344 | 1.55 | 10.7 | 3.3 | 10.8 | 168.2 | 199 | 127 | 120 | 38 | 62 | 202 | 0 | 0 | 0 | 0 | 11 | 4 | 2 | 4.71 |
| RP | Frieri, E.Frieri, Ernesto >> | 26 | 2012 | R | 67 | 82 | 0 | 5 | 4 | 5.26 | .307 | 1.31 | 7.1 | 4.7 | 10.1 | 106.0 | 84 | 62 | 62 | 19 | 55 | 119 | 0 | 5 | 7 | 0 | 0 | 2 | 1 | 4.70 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 34 | 2014 | R | 45 | 84 | 0 | 7 | 2 | 4.50 | .347 | 1.58 | 10.4 | 3.9 | 7.2 | 86.0 | 99 | 47 | 43 | 15 | 37 | 69 | 0 | 11 | 6 | 0 | 0 | 1 | 2 | 4.99 |
| RP | Hernandez, D.Hernandez, David >> | 27 | 2012 | R | 32 | 61 | 0 | 3 | 3 | 4.61 | .321 | 1.39 | 8.6 | 4.0 | 11.7 | 66.1 | 63 | 37 | 34 | 10 | 29 | 86 | 0 | 5 | 2 | 0 | 0 | 2 | 1 | 3.77 |