| SP | Hershiser, O.Hershiser, Orel # >> | 31 | 1989 | R | 70 | 18 | 18 | 6 | 6 | 5.02 | .349 | 1.61 | 10.8 | 3.6 | 6.3 | 122.0 | 147 | 76 | 68 | 9 | 49 | 85 | 0 | 0 | 0 | 0 | 8 | 0 | 5 | 3.77 |
| SP | Swindell, G.Swindell, Greg >> | 24 | 1989 | L | 62 | 18 | 18 | 11 | 3 | 3.48 | .318 | 1.39 | 8.7 | 3.9 | 4.5 | 121.2 | 117 | 50 | 47 | 7 | 52 | 60 | 0 | 0 | 0 | 0 | 12 | 1 | 4 | 4.07 |
| SP | Heaton, N.Heaton, Neal >> | 29 | 1989 | L | 57 | 18 | 18 | 1 | 0 | 3.60 | .329 | 1.47 | 8.7 | 4.5 | 3.9 | 70.0 | 68 | 28 | 28 | 5 | 35 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4.57 |
| CL | Dibble, R.Dibble, Rob † >> | 25 | 1989 | R | 98 | 38 | 0 | 4 | 3 | 2.23 | .271 | 1.12 | 6.1 | 4.1 | 7.0 | 40.1 | 27 | 10 | 10 | 1 | 18 | 31 | 0 | 28 | 1 | 0 | 0 | 0 | 0 | 3.13 |
| RP | Minton, G.Minton, Greg >> | 38 | 1989 | R | 46 | 17 | 0 | 3 | 1 | 2.14 | .315 | 1.38 | 9.0 | 3.4 | 4.7 | 21.0 | 21 | 5 | 5 | 1 | 8 | 11 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 3.71 |
| RP | Schiraldi, C.Schiraldi, Calvin >> | 27 | 1989 | R | 49 | 29 | 0 | 6 | 0 | 3.73 | .335 | 1.49 | 8.6 | 4.8 | 5.9 | 41.0 | 39 | 17 | 17 | 4 | 22 | 27 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 4.63 |
| RP | Guetterman, L.Guetterman, Lee >> | 31 | 1989 | L | 42 | 43 | 0 | 4 | 0 | 4.33 | .336 | 1.52 | 10.7 | 3.0 | 5.0 | 27.0 | 32 | 13 | 13 | 3 | 9 | 15 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 4.33 |
| RP | Parrett, J.Parrett, Jeff >> | 28 | 1989 | R | 56 | 6 | 0 | 2 | 0 | 5.40 | .375 | 1.80 | 10.8 | 5.4 | 3.6 | 5.0 | 6 | 3 | 3 | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.00 |
| RP | Harris, G.Harris, Greg >> | 26 | 1989 | R | 69 | 10 | 0 | 0 | 2 | 7.20 | .408 | 2.07 | 11.4 | 7.2 | 3.0 | 15.0 | 19 | 12 | 12 | 1 | 12 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5.60 |