| SP | Arrieta, J.Arrieta, Jake # >> | 29 | 2015 | R | 93 | 26 | 26 | 13 | 7 | 3.55 | .279 | 1.15 | 7.9 | 2.4 | 8.0 | 162.1 | 143 | 66 | 64 | 17 | 43 | 144 | 1 | 0 | 0 | 0 | 17 | 2 | 5 | 3.42 |
| SP | Leonard, D.Leonard, Dutch $ >> | 22 | 1914 | L | 91 | 26 | 26 | 14 | 5 | 2.73 | .263 | 1.05 | 6.5 | 3.0 | 4.4 | 178.0 | 128 | 55 | 54 | 11 | 59 | 87 | 1 | 0 | 0 | 1 | 20 | 4 | 1 | 3.89 |
| SP | Alexander, P.Alexander, Pete † >> | 28 | 1915 | R | 88 | 25 | 25 | 14 | 6 | 2.97 | .257 | 1.02 | 6.8 | 2.4 | 5.0 | 184.2 | 139 | 63 | 61 | 12 | 49 | 103 | 2 | 0 | 0 | 1 | 21 | 4 | 3 | 3.59 |
| SP | Brown, M.Brown, Mordecai † >> | 32 | 1908 | R | 85 | 25 | 25 | 16 | 5 | 2.38 | .253 | 1.00 | 7.2 | 1.8 | 3.9 | 216.0 | 172 | 61 | 57 | 20 | 44 | 93 | 16 | 0 | 0 | 2 | 19 | 3 | 7 | 4.00 |
| SP | McDowell, S.McDowell, Sam >> | 26 | 1968 | L | 45 | 23 | 23 | 8 | 12 | 4.05 | .316 | 1.38 | 8.4 | 4.1 | 7.6 | 162.1 | 151 | 82 | 73 | 14 | 73 | 136 | 6 | 0 | 0 | 1 | 14 | 1 | 5 | 3.81 |
| RP | Bailey, A.Bailey, Andrew >> | 25 | 2009 | R | 66 | 6 | 0 | 0 | 1 | 1.80 | .250 | 1.00 | 7.2 | 1.8 | 5.4 | 5.0 | 4 | 1 | 1 | 1 | 1 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 5.00 |
| RP | Eichhorn, M.Eichhorn, Mark >> | 26 | 1986 | R | 48 | 1 | 0 | 0 | 0 | 0.00 | .000 | 0.00 | - | - | - | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |