| SP | Greinke, Z.Greinke, Zack >> | 36 | 2019 | R | 88 | 34 | 34 | 7 | 21 | 5.57 | .332 | 1.42 | 10.2 | 2.6 | 8.9 | 206.2 | 233 | 137 | 128 | 44 | 60 | 203 | 1 | 0 | 0 | 0 | 12 | 15 | 4 | 4.90 |
| SP | Carrasco, C.Carrasco, Carlos >> | 32 | 2019 | R | 28 | 32 | 31 | 1 | 9 | 5.43 | .316 | 1.37 | 10.0 | 2.4 | 11.8 | 122.2 | 135 | 75 | 74 | 26 | 33 | 160 | 0 | 0 | 1 | 0 | 0 | 2 | 2 | 4.01 |
| SP | Bauer, T.Bauer, Trevor >> | 28 | 2019 | R | 69 | 32 | 32 | 5 | 16 | 6.50 | .342 | 1.53 | 10.1 | 3.7 | 11.6 | 177.1 | 198 | 128 | 128 | 41 | 73 | 229 | 0 | 0 | 0 | 0 | 13 | 5 | 12 | 4.75 |
| SP | Gonzales, M.Gonzales, Marco † >> | 27 | 2019 | L | 35 | 28 | 22 | 8 | 8 | 3.95 | .300 | 1.24 | 8.3 | 2.9 | 8.3 | 145.2 | 134 | 68 | 64 | 22 | 47 | 134 | 0 | 1 | 0 | 0 | 13 | 6 | 3 | 4.22 |
| CL | Chapman, A.Chapman, Aroldis >> | 31 | 2019 | L | 84 | 78 | 0 | 1 | 9 | 5.93 | .333 | 1.49 | 8.0 | 5.4 | 12.5 | 88.0 | 78 | 58 | 58 | 11 | 53 | 122 | 0 | 19 | 8 | 0 | 0 | 1 | 9 | 3.69 |
| RP | Kahnle, T.Kahnle, Tommy >> | 29 | 2019 | R | 83 | 94 | 0 | 5 | 6 | 4.38 | .308 | 1.33 | 8.5 | 3.5 | 11.5 | 121.1 | 114 | 62 | 59 | 16 | 47 | 154 | 0 | 4 | 1 | 0 | 0 | 1 | 20 | 3.36 |
| RP | Pressly, R.Pressly, Ryan >> | 30 | 2019 | R | 96 | 88 | 0 | 3 | 4 | 5.81 | .306 | 1.31 | 9.5 | 2.4 | 11.8 | 114.2 | 120 | 74 | 74 | 28 | 30 | 149 | 0 | 1 | 3 | 0 | 0 | 2 | 6 | 4.42 |
| RP | Parker, B.Parker, Blake >> | 34 | 2019 | R | 56 | 81 | 0 | 6 | 3 | 4.34 | .319 | 1.38 | 8.6 | 3.9 | 11.1 | 95.1 | 91 | 49 | 46 | 13 | 41 | 117 | 0 | 3 | 3 | 0 | 0 | 2 | 7 | 3.67 |