| SP | Shoemaker, M.Shoemaker, Matt † >> | 32 | 2019 | R | 97 | 37 | 37 | 17 | 6 | 2.96 | .271 | 1.06 | 6.2 | 3.4 | 9.1 | 228.1 | 157 | 81 | 75 | 21 | 86 | 230 | 0 | 0 | 0 | 0 | 23 | 12 | 3 | 3.47 |
| SP | Canning, G.Canning, Griffin # + >> | 23 | 2019 | R | 78 | 36 | 36 | 11 | 11 | 4.27 | .298 | 1.23 | 8.0 | 3.1 | 11.0 | 183.1 | 162 | 93 | 87 | 30 | 64 | 223 | 0 | 0 | 0 | 0 | 15 | 8 | 9 | 3.87 |
| SP | Cashner, A.Cashner, Andrew # >> | 32 | 2019 | R | 50 | 34 | 34 | 0 | 5 | 5.88 | .356 | 1.63 | 9.7 | 5.0 | 8.7 | 119.1 | 128 | 79 | 78 | 23 | 66 | 115 | 0 | 0 | 0 | 0 | 0 | 4 | 7 | 5.34 |
| SP | Sandoval, P.Sandoval, Patrick + >> | 22 | 2019 | L | 59 | 34 | 33 | 8 | 8 | 5.16 | .350 | 1.57 | 9.7 | 4.5 | 11.4 | 144.2 | 155 | 89 | 83 | 16 | 72 | 183 | 0 | 0 | 0 | 0 | 2 | 7 | 11 | 3.55 |
| SP | Barria, J.Barria, Jaime >> | 22 | 2019 | R | 30 | 25 | 23 | 0 | 4 | 5.29 | .344 | 1.54 | 9.8 | 4.1 | 8.3 | 80.0 | 87 | 49 | 47 | 18 | 36 | 74 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 5.54 |
| RP | Bedrosian, C.Bedrosian, Cam # >> | 27 | 2019 | R | 84 | 90 | 0 | 8 | 2 | 4.56 | .313 | 1.33 | 7.7 | 4.3 | 10.7 | 106.2 | 91 | 55 | 54 | 15 | 51 | 126 | 0 | 3 | 5 | 0 | 0 | 4 | 12 | 4.02 |
| RP | Chatwood, T.Chatwood, Tyler † >> | 29 | 2019 | R | 62 | 75 | 0 | 23 | 5 | 4.15 | .315 | 1.34 | 7.9 | 4.2 | 8.8 | 160.2 | 141 | 77 | 74 | 29 | 74 | 156 | 0 | 1 | 0 | 0 | 0 | 7 | 10 | 4.93 |
| RP | Watson, T.Watson, Tony >> | 34 | 2019 | L | 53 | 53 | 0 | 2 | 1 | 4.15 | .296 | 1.21 | 9.0 | 1.9 | 8.2 | 56.1 | 56 | 26 | 26 | 11 | 12 | 51 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 4.54 |