| SP | Syndergaard, N.Syndergaard, Noah >> | 22 | 2015 | R | 93 | 21 | 21 | 5 | 9 | 5.01 | .312 | 1.31 | 9.4 | 2.4 | 9.9 | 129.1 | 135 | 72 | 72 | 15 | 35 | 142 | 1 | 0 | 0 | 1 | 12 | 6 | 4 | 3.26 |
| SP | Kazmir, S.Kazmir, Scott # >> | 31 | 2015 | L | 70 | 23 | 23 | 3 | 13 | 5.65 | .350 | 1.57 | 11.8 | 2.3 | 6.9 | 127.1 | 167 | 85 | 80 | 16 | 33 | 97 | 0 | 0 | 0 | 0 | 8 | 6 | 4 | 4.03 |
| SP | Sanchez, A.Sanchez, Anibal >> | 31 | 2015 | R | 53 | 23 | 23 | 7 | 11 | 5.25 | .332 | 1.47 | 10.6 | 2.7 | 7.0 | 132.0 | 155 | 83 | 77 | 18 | 39 | 103 | 0 | 0 | 0 | 0 | 10 | 3 | 5 | 4.17 |
| SP | Volquez, E.Volquez, Edinson >> | 32 | 2015 | R | 40 | 22 | 22 | 7 | 7 | 4.14 | .334 | 1.50 | 9.1 | 4.4 | 7.3 | 128.1 | 130 | 69 | 59 | 12 | 62 | 104 | 0 | 0 | 0 | 0 | 10 | 1 | 4 | 4.07 |
| SP | Chavez, J.Chavez, Jesse >> | 32 | 2015 | R | 31 | 23 | 22 | 6 | 9 | 5.53 | .347 | 1.56 | 10.4 | 3.6 | 7.4 | 114.0 | 132 | 73 | 70 | 12 | 46 | 94 | 0 | 0 | 0 | 0 | 6 | 4 | 1 | 4.04 |
| RP | O'Day, D.O'Day, Darren >> | 33 | 2015 | R | 91 | 71 | 0 | 5 | 3 | 4.95 | .338 | 1.52 | 10.2 | 3.6 | 10.2 | 76.1 | 86 | 47 | 42 | 8 | 30 | 86 | 0 | 2 | 3 | 0 | 0 | 1 | 0 | 3.33 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 35 | 2015 | R | 67 | 72 | 0 | 6 | 2 | 3.32 | .284 | 1.17 | 7.9 | 2.6 | 6.5 | 84.0 | 74 | 36 | 31 | 11 | 24 | 61 | 0 | 9 | 3 | 0 | 0 | 2 | 0 | 4.18 |
| RP | Janssen, C.Janssen, Casey >> | 34 | 2015 | R | 44 | 64 | 0 | 1 | 4 | 4.16 | .309 | 1.34 | 10.6 | 1.6 | 6.0 | 62.2 | 73 | 30 | 29 | 9 | 11 | 41 | 0 | 5 | 2 | 0 | 0 | 0 | 3 | 4.10 |
| RP | Hunter, T.Hunter, Tommy >> | 29 | 2015 | R | 29 | 46 | 0 | 5 | 3 | 2.65 | .282 | 1.14 | 7.2 | 3.0 | 6.7 | 51.0 | 41 | 15 | 15 | 1 | 17 | 38 | 0 | 7 | 1 | 0 | 0 | 2 | 1 | 2.88 |
| RP | Richard, C.Richard, Clayton >> | 32 | 2015 | L | 18 | 80 | 0 | 3 | 2 | 4.18 | .314 | 1.34 | 9.0 | 3.1 | 6.1 | 90.1 | 90 | 42 | 42 | 8 | 31 | 61 | 0 | 6 | 3 | 0 | 0 | 3 | 10 | 3.93 |