| # | Pitcher | JJ | JI | G | P | SV | IP | H | CP | CL | HR | BB | K | WHIP | EFE | RJG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 52 | Ryan Buchter | 54 | 0 | 6 | 0 | 0 | 39.1 | 32 | 17 | 12 | 4 | 15 | 41 | 1.19 | 2.75 | 6 |
| 40 | Chris Bassitt | 11 | 7 | 2 | 3 | 0 | 47.2 | 40 | 21 | 16 | 4 | 19 | 41 | 1.24 | 3.02 | 2 |
| 5 | Jake Smolinski | 1 | 0 | 0 | 0 | 0 | 1.0 | 2 | 2 | 2 | 1 | 0 | 0 | 2.00 | 18.00 | 0 |
| 37 | Edwin Jackson | 17 | 17 | 6 | 3 | 0 | 92.0 | 75 | 37 | 34 | 12 | 37 | 68 | 1.22 | 3.33 | 3 |
| 35 | Aaron Brooks | 3 | 0 | 0 | 0 | 0 | 2.2 | 1 | 0 | 0 | 0 | 2 | 1 | 1.13 | 0.00 | 0 |
| 66 | Ryan Dull | 28 | 0 | 0 | 0 | 0 | 25.1 | 22 | 12 | 12 | 3 | 7 | 21 | 1.14 | 4.26 | 0 |
| 50 | Mike Fiers | 10 | 9 | 5 | 2 | 0 | 53.0 | 45 | 22 | 22 | 12 | 11 | 52 | 1.06 | 3.74 | 6 |
| 61 | Cory Gearrin | 6 | 0 | 0 | 0 | 0 | 6.0 | 10 | 4 | 4 | 0 | 2 | 2 | 2.00 | 6.00 | 1 |
| 61 | Carlos Ramirez | 3 | 0 | 0 | 0 | 0 | 6.0 | 2 | 2 | 2 | 0 | 4 | 2 | 1.00 | 3.00 | 0 |
| 44 | Chris Hatcher | 34 | 0 | 3 | 3 | 0 | 36.1 | 43 | 23 | 20 | 7 | 17 | 30 | 1.65 | 4.95 | 3 |
| 15 | Emilio Pagan | 55 | 0 | 3 | 1 | 0 | 62.0 | 55 | 30 | 30 | 13 | 19 | 63 | 1.19 | 4.35 | 3 |
| 33 | Daniel Mengden | 22 | 17 | 7 | 6 | 0 | 115.2 | 103 | 58 | 52 | 18 | 26 | 72 | 1.12 | 4.05 | 4 |
| 47 | Frankie Montas | 13 | 11 | 5 | 4 | 0 | 65.0 | 74 | 34 | 28 | 5 | 21 | 43 | 1.46 | 3.88 | 3 |
| 32 | Jeurys Familia | 30 | 0 | 4 | 2 | 1 | 31.1 | 24 | 13 | 12 | 2 | 14 | 40 | 1.21 | 3.45 | 4 |
| 35 | Danny Coulombe | 27 | 0 | 1 | 1 | 0 | 23.2 | 24 | 13 | 12 | 5 | 11 | 26 | 1.48 | 4.56 | 1 |
| 60 | Andrew Triggs | 9 | 9 | 3 | 1 | 0 | 41.1 | 37 | 24 | 24 | 7 | 18 | 43 | 1.33 | 5.23 | 2 |
| 46 | Santiago Casilla | 26 | 0 | 0 | 0 | 1 | 31.1 | 18 | 11 | 11 | 0 | 20 | 22 | 1.21 | 3.16 | 0 |
| 54 | Josh Lucas | 8 | 1 | 0 | 0 | 0 | 14.1 | 16 | 11 | 10 | 1 | 9 | 14 | 1.74 | 6.28 | 0 |
| 63 | Dean Kiekhefer | 4 | 0 | 0 | 0 | 0 | 2.0 | 7 | 4 | 4 | 1 | 1 | 1 | 4.00 | 18.00 | 0 |
| 39 | Blake Treinen | 68 | 0 | 9 | 2 | 38 | 80.1 | 46 | 12 | 7 | 2 | 21 | 100 | 0.83 | 0.78 | 5 |
| 53 | Trevor Cahill | 21 | 20 | 7 | 4 | 0 | 110.0 | 90 | 52 | 46 | 8 | 41 | 100 | 1.19 | 3.76 | 4 |
| 62 | Lou Trivino | 69 | 1 | 8 | 3 | 4 | 74.0 | 53 | 24 | 24 | 8 | 31 | 82 | 1.14 | 2.92 | 5 |
| 31 | Shawn Kelley | 19 | 0 | 1 | 0 | 0 | 16.2 | 7 | 4 | 4 | 0 | 6 | 18 | 0.78 | 2.16 | 1 |
| 56 | Fernando Rodney | 22 | 0 | 1 | 1 | 0 | 20.2 | 20 | 9 | 9 | 2 | 13 | 20 | 1.60 | 3.92 | 3 |
| 36 | Yusmeiro Petit | 74 | 0 | 7 | 3 | 0 | 93.0 | 76 | 32 | 31 | 13 | 18 | 76 | 1.01 | 3.00 | 3 |
| 16 | Liam Hendriks | 25 | 8 | 0 | 1 | 0 | 24.0 | 25 | 11 | 11 | 3 | 10 | 22 | 1.46 | 4.13 | 0 |
| 30 | Brett Anderson | 17 | 17 | 4 | 5 | 0 | 80.1 | 90 | 42 | 40 | 10 | 13 | 47 | 1.28 | 4.48 | 2 |
| 58 | Paul Blackburn | 6 | 6 | 2 | 3 | 0 | 27.2 | 33 | 23 | 22 | 2 | 6 | 19 | 1.41 | 7.16 | 1 |
| 56 | Jeremy Bleich | 2 | 0 | 0 | 0 | 0 | 0.1 | 2 | 2 | 2 | 0 | 0 | 1 | 6.00 | 54.00 | 0 |
| 49 | Kendall Graveman | 7 | 7 | 1 | 5 | 0 | 34.1 | 44 | 32 | 29 | 9 | 13 | 27 | 1.66 | 7.60 | 1 |
| 55 | Sean Manaea | 27 | 27 | 12 | 9 | 0 | 160.2 | 141 | 67 | 64 | 21 | 32 | 108 | 1.08 | 3.59 | 4 |
| 48 | Daniel Gossett | 5 | 5 | 0 | 3 | 0 | 24.1 | 25 | 14 | 14 | 5 | 8 | 12 | 1.36 | 5.18 | 0 |
| 57 | Wilmer Font | 4 | 0 | 0 | 0 | 0 | 6.2 | 13 | 11 | 11 | 5 | 4 | 9 | 2.55 | 14.85 | 2 |
| 57 | J.B. Wendelken | 13 | 0 | 0 | 0 | 0 | 16.2 | 8 | 1 | 1 | 1 | 5 | 14 | 0.78 | 0.54 | 0 |
