| # | Pitcher | JJ | JI | G | P | SV | IP | H | CP | CL | HR | BB | K | WHIP | EFE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ken Giles | 4 | 0 | 0 | 0 | 0 | 4.0 | 1 | 0 | 0 | 0 | 3 | 6 | 1.00 | 0.00 |
| 1 | Riley O'Brien | 1 | 0 | 0 | 0 | 0 | 1.0 | 1 | 0 | 0 | 0 | 1 | 1 | 2.00 | 0.00 |
| 1 | Justus Sheffield | 5 | 0 | 0 | 0 | 0 | 6.2 | 2 | 0 | 0 | 0 | 2 | 3 | 0.60 | 0.00 |
| 4 | Erik Swanson | 21 | 0 | 0 | 0 | 1 | 21.1 | 14 | 2 | 2 | 2 | 4 | 30 | 0.84 | 0.84 |
| 5 | Penn Murfee | 29 | 1 | 1 | 0 | 0 | 31.2 | 17 | 7 | 7 | 2 | 8 | 38 | 0.79 | 1.99 |
| 6 | Tommy Milone | 3 | 0 | 0 | 1 | 0 | 9.0 | 5 | 2 | 2 | 1 | 0 | 4 | 0.56 | 2.00 |
| 7 | Logan Gilbert | 16 | 16 | 9 | 3 | 0 | 94.2 | 80 | 31 | 28 | 10 | 26 | 92 | 1.12 | 2.66 |
| 8 | Paul Sewald | 29 | 0 | 3 | 2 | 8 | 28.2 | 14 | 9 | 9 | 5 | 7 | 31 | 0.73 | 2.83 |
| 9 | Marco Gonzales | 16 | 16 | 4 | 9 | 0 | 87.2 | 84 | 41 | 32 | 14 | 32 | 49 | 1.32 | 3.29 |
| 10 | Roenis Elias | 7 | 0 | 0 | 0 | 0 | 7.2 | 7 | 3 | 3 | 1 | 3 | 6 | 1.30 | 3.52 |
| 11 | Andres Munoz | 29 | 0 | 1 | 3 | 1 | 28.2 | 26 | 14 | 12 | 5 | 8 | 42 | 1.19 | 3.77 |
| 12 | Robbie Ray | 16 | 16 | 6 | 6 | 0 | 97.2 | 77 | 42 | 41 | 14 | 34 | 105 | 1.14 | 3.78 |
| 13 | Ryan Borucki | 8 | 0 | 0 | 0 | 0 | 6.2 | 8 | 3 | 3 | 1 | 1 | 5 | 1.35 | 4.05 |
| 14 | George Kirby | 10 | 10 | 2 | 3 | 0 | 53.0 | 58 | 28 | 24 | 12 | 7 | 49 | 1.23 | 4.08 |
| 15 | Wyatt Mills | 8 | 0 | 0 | 0 | 0 | 8.2 | 5 | 4 | 4 | 0 | 3 | 6 | 0.92 | 4.15 |
| 16 | Chris Flexen | 15 | 15 | 4 | 8 | 0 | 83.1 | 90 | 40 | 40 | 11 | 29 | 58 | 1.43 | 4.32 |
| 17 | Matthew Festa | 21 | 0 | 0 | 0 | 0 | 20.2 | 17 | 11 | 10 | 5 | 7 | 31 | 1.16 | 4.35 |
| 18 | Anthony Misiewicz | 17 | 0 | 0 | 1 | 0 | 13.2 | 14 | 7 | 7 | 1 | 6 | 8 | 1.46 | 4.61 |
| 19 | Diego Castillo | 30 | 0 | 5 | 1 | 4 | 28.0 | 24 | 18 | 15 | 2 | 10 | 31 | 1.21 | 4.82 |
| 20 | Drew Steckenrider | 16 | 0 | 0 | 2 | 2 | 14.1 | 21 | 9 | 9 | 2 | 5 | 10 | 1.81 | 5.65 |
| 21 | Danny Young | 2 | 0 | 0 | 0 | 0 | 3.2 | 7 | 3 | 3 | 1 | 2 | 5 | 2.45 | 7.36 |
| 22 | Yohan Ramirez | 7 | 0 | 1 | 0 | 0 | 8.1 | 7 | 7 | 7 | 3 | 6 | 10 | 1.56 | 7.56 |
| 23 | Matt Brash | 5 | 5 | 1 | 3 | 0 | 20.0 | 24 | 17 | 17 | 3 | 17 | 19 | 2.05 | 7.65 |
| 24 | Sergio Romo | 17 | 0 | 0 | 0 | 0 | 14.1 | 18 | 13 | 13 | 6 | 4 | 11 | 1.53 | 8.16 |
| 25 | Matt Koch | 4 | 0 | 0 | 0 | 0 | 4.1 | 5 | 4 | 4 | 2 | 1 | 3 | 1.38 | 8.31 |
