| SP | Greinke, Z.Greinke, Zack † >> | 36 | 2019 | R | 90 | 37 | 37 | 19 | 10 | 2.37 | .250 | 0.97 | 7.0 | 1.8 | 8.9 | 258.2 | 201 | 74 | 68 | 24 | 51 | 254 | 2 | 0 | 0 | 0 | 27 | 6 | 0 | 2.90 |
| SP | Bauer, T.Bauer, Trevor >> | 28 | 2019 | R | 77 | 34 | 34 | 11 | 15 | 4.70 | .323 | 1.38 | 8.9 | 3.5 | 11.4 | 208.2 | 206 | 109 | 109 | 24 | 81 | 263 | 0 | 0 | 0 | 0 | 17 | 11 | 8 | 3.30 |
| SP | Duffy, D.Duffy, Danny # >> | 30 | 2019 | L | 58 | 35 | 34 | 8 | 14 | 5.12 | .326 | 1.41 | 9.4 | 3.4 | 8.1 | 191.2 | 199 | 112 | 109 | 31 | 72 | 171 | 1 | 0 | 0 | 0 | 14 | 7 | 6 | 4.56 |
| SP | Keller, B.Keller, Brad # >> | 23 | 2019 | R | 49 | 32 | 32 | 8 | 11 | 4.99 | .311 | 1.32 | 8.5 | 3.4 | 7.9 | 157.0 | 149 | 91 | 87 | 23 | 59 | 138 | 0 | 0 | 0 | 0 | 4 | 5 | 7 | 4.37 |
| SP | Zeuch, T.Zeuch, T.J. + >> | 23 | 2019 | R | 34 | 31 | 25 | 1 | 8 | 4.63 | .330 | 1.45 | 8.5 | 4.5 | 7.9 | 95.1 | 90 | 49 | 49 | 18 | 48 | 83 | 0 | 0 | 1 | 0 | 0 | 3 | 3 | 5.33 |
| RP | Morgan, A.Morgan, Adam >> | 29 | 2019 | R | 90 | 85 | 0 | 10 | 7 | 2.90 | .266 | 1.08 | 6.6 | 3.1 | 11.1 | 118.0 | 87 | 38 | 38 | 13 | 41 | 146 | 0 | 6 | 4 | 0 | 0 | 0 | 0 | 3.00 |
| RP | Soria, J.Soria, Joakim >> | 35 | 2019 | R | 91 | 82 | 0 | 7 | 4 | 2.56 | .264 | 1.02 | 6.9 | 2.3 | 10.0 | 109.0 | 83 | 34 | 31 | 14 | 28 | 121 | 0 | 6 | 5 | 0 | 0 | 6 | 4 | 3.39 |
| RP | Hudson, D.Hudson, Daniel >> | 32 | 2019 | R | 84 | 65 | 0 | 4 | 6 | 2.72 | .265 | 1.07 | 6.2 | 3.4 | 7.9 | 76.0 | 52 | 23 | 23 | 8 | 29 | 67 | 0 | 4 | 3 | 0 | 0 | 1 | 0 | 3.79 |
| RP | Barlow, S.Barlow, Scott + >> | 26 | 2019 | R | 55 | 31 | 0 | 1 | 1 | 4.15 | .364 | 1.68 | 9.9 | 5.4 | 12.6 | 30.1 | 33 | 14 | 14 | 4 | 18 | 42 | 0 | 3 | 0 | 0 | 0 | 1 | 3 | 3.83 |
| RP | Newberry, J.Newberry, Jake # + >> | 24 | 2019 | R | 47 | 31 | 0 | 3 | 2 | 5.00 | .294 | 1.14 | 8.5 | 1.8 | 10.3 | 36.0 | 34 | 20 | 20 | 3 | 7 | 41 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 2.72 |