| SP | Guzman, J.Guzman, Juan >> | 25 | 1991 | R | 88 | 21 | 21 | 11 | 5 | 2.77 | .303 | 1.30 | 7.9 | 3.8 | 5.9 | 136.1 | 120 | 43 | 42 | 7 | 57 | 89 | 0 | 0 | 0 | 0 | 14 | 1 | 5 | 3.64 |
| SP | Martinez, D.Martinez, Dennis † >> | 36 | 1991 | R | 84 | 21 | 21 | 9 | 8 | 3.09 | .272 | 1.11 | 8.1 | 1.9 | 4.5 | 163.1 | 147 | 56 | 56 | 11 | 35 | 82 | 8 | 0 | 0 | 0 | 14 | 1 | 2 | 3.53 |
| SP | Nabholz, C.Nabholz, Chris >> | 24 | 1991 | L | 65 | 20 | 20 | 5 | 7 | 4.62 | .331 | 1.48 | 9.8 | 3.6 | 6.6 | 122.2 | 133 | 64 | 63 | 14 | 49 | 89 | 0 | 0 | 0 | 0 | 8 | 0 | 3 | 4.24 |
| SP | Benes, A.Benes, Andy † >> | 24 | 1991 | R | 87 | 20 | 20 | 10 | 5 | 2.69 | .277 | 1.12 | 7.5 | 2.6 | 5.6 | 154.0 | 128 | 52 | 46 | 15 | 45 | 95 | 3 | 0 | 0 | 0 | 16 | 4 | 0 | 3.99 |
| SP | DeLeon, J.DeLeon, Jose # >> | 31 | 1991 | R | 57 | 20 | 20 | 0 | 4 | 4.03 | .319 | 1.38 | 8.1 | 4.4 | 5.3 | 82.2 | 74 | 40 | 37 | 5 | 40 | 48 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 4.16 |
| RP | Henry, D.Henry, Doug † >> | 28 | 1991 | R | 99 | 52 | 0 | 9 | 4 | 3.79 | .290 | 1.21 | 6.5 | 4.4 | 6.8 | 76.0 | 55 | 36 | 32 | 6 | 37 | 57 | 0 | 4 | 2 | 0 | 0 | 1 | 0 | 4.03 |
| RP | Perez, M.Perez, Melido >> | 25 | 1991 | R | 76 | 43 | 0 | 1 | 3 | 3.80 | .294 | 1.25 | 8.0 | 3.2 | 5.2 | 64.0 | 57 | 32 | 27 | 6 | 23 | 37 | 0 | 8 | 3 | 0 | 0 | 0 | 4 | 4.14 |
| RP | Willis, C.Willis, Carl >> | 31 | 1991 | R | 75 | 21 | 0 | 4 | 2 | 4.08 | .323 | 1.43 | 10.3 | 2.9 | 6.4 | 28.2 | 32 | 13 | 13 | 3 | 9 | 20 | 0 | 2 | 2 | 0 | 0 | 0 | 5 | 3.93 |
| RP | Jones, C.Jones, Calvin >> | 28 | 1991 | R | 64 | 6 | 0 | 1 | 0 | 0.00 | .292 | 1.24 | 5.4 | 7.2 | 3.6 | 5.2 | 3 | 0 | 0 | 0 | 4 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 4.60 |
| RP | Machado, J.Machado, Julio >> | 26 | 1991 | R | 60 | 11 | 0 | 1 | 0 | 2.45 | .313 | 1.36 | 9.0 | 3.9 | 7.7 | 7.1 | 7 | 2 | 2 | 0 | 3 | 6 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 2.57 |
| SP | Hershiser, O.Hershiser, Orel >> | 33 | 1991 | R | 25 | 0 | 0 | 0 | 0 | - | .000 | - | - | - | - | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |