| # | Pitcher | JJ | JI | G | P | SV | IP | H | CP | CL | HR | BB | K | WHIP | EFE | RJG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 56 | Fernando Rodney | 17 | 0 | 0 | 2 | 0 | 14.1 | 20 | 15 | 15 | 2 | 12 | 14 | 2.23 | 9.42 | 0 |
| 16 | Liam Hendriks | 31 | 2 | 3 | 0 | 0 | 37.1 | 26 | 7 | 7 | 1 | 17 | 43 | 1.15 | 1.69 | 3 |
| 39 | Blake Treinen | 28 | 0 | 2 | 2 | 15 | 34.1 | 31 | 14 | 13 | 3 | 19 | 35 | 1.46 | 3.41 | 1 |
| 61 | Wei-Chung Wang | 7 | 0 | 0 | 0 | 0 | 9.2 | 5 | 2 | 2 | 1 | 1 | 6 | 0.62 | 1.86 | 0 |
| 57 | J.B. Wendelken | 18 | 0 | 0 | 1 | 0 | 21.0 | 20 | 14 | 13 | 2 | 6 | 23 | 1.24 | 5.57 | 0 |
| 53 | Tanner Anderson | 1 | 1 | 0 | 1 | 0 | 5.2 | 3 | 2 | 2 | 1 | 2 | 5 | 0.88 | 3.18 | 0 |
| 50 | Mike Fiers | 15 | 15 | 6 | 3 | 0 | 81.2 | 69 | 42 | 42 | 15 | 24 | 56 | 1.14 | 4.63 | 4 |
| 58 | Paul Blackburn | 1 | 1 | 0 | 1 | 0 | 3.0 | 5 | 5 | 5 | 1 | 3 | 4 | 2.67 | 15.00 | 0 |
| 47 | Frankie Montas | 13 | 13 | 8 | 2 | 0 | 76.0 | 70 | 31 | 24 | 6 | 20 | 79 | 1.18 | 2.84 | 4 |
| 30 | Brett Anderson | 14 | 14 | 6 | 4 | 0 | 78.2 | 80 | 35 | 34 | 7 | 28 | 43 | 1.37 | 3.89 | 3 |
| 36 | Yusmeiro Petit | 33 | 0 | 1 | 1 | 0 | 38.1 | 29 | 12 | 12 | 7 | 5 | 25 | 0.89 | 2.82 | 1 |
| 12 | Kendrys Morales | 1 | 0 | 0 | 0 | 0 | 1.0 | 1 | 1 | 1 | 0 | 2 | 0 | 3.00 | 9.00 | 0 |
| 66 | Ryan Dull | 7 | 0 | 0 | 0 | 0 | 9.0 | 19 | 13 | 12 | 4 | 4 | 8 | 2.56 | 12.00 | 0 |
| 48 | Joakim Soria | 30 | 1 | 1 | 4 | 0 | 31.2 | 28 | 20 | 20 | 3 | 10 | 30 | 1.20 | 5.68 | 1 |
| 35 | Aaron Brooks | 11 | 6 | 2 | 3 | 0 | 42.1 | 45 | 28 | 27 | 11 | 14 | 36 | 1.39 | 5.74 | 1 |
| 62 | Lou Trivino | 33 | 0 | 2 | 4 | 0 | 34.1 | 33 | 19 | 18 | 3 | 16 | 36 | 1.43 | 4.72 | 2 |
| 40 | Chris Bassitt | 10 | 10 | 3 | 3 | 0 | 58.2 | 46 | 25 | 24 | 8 | 24 | 57 | 1.19 | 3.68 | 2 |
| 52 | Ryan Buchter | 32 | 0 | 0 | 1 | 0 | 19.0 | 18 | 9 | 8 | 2 | 15 | 24 | 1.74 | 3.79 | 0 |
| 21 | Marco Estrada | 5 | 5 | 0 | 2 | 0 | 23.2 | 23 | 19 | 18 | 7 | 8 | 11 | 1.31 | 6.85 | 0 |
| 33 | Daniel Mengden | 5 | 3 | 1 | 1 | 0 | 23.0 | 23 | 13 | 13 | 1 | 15 | 19 | 1.65 | 5.09 | 1 |
