| SP | Smoltz, J.Smoltz, John >> | 22 | 1989 | R | 94 | 18 | 18 | 6 | 8 | 3.93 | .310 | 1.35 | 7.7 | 4.5 | 5.3 | 107.2 | 91 | 49 | 47 | 8 | 54 | 63 | 1 | 0 | 0 | 0 | 11 | 0 | 3 | 4.31 |
| SP | Perez, P.Perez, Pascual # >> | 32 | 1989 | R | 82 | 17 | 17 | 6 | 8 | 4.46 | .291 | 1.22 | 8.6 | 2.4 | 5.6 | 103.0 | 98 | 53 | 51 | 13 | 28 | 64 | 0 | 0 | 0 | 0 | 10 | 1 | 2 | 4.24 |
| SP | Morgan, M.Morgan, Mike >> | 30 | 1989 | R | 87 | 16 | 15 | 1 | 4 | 3.51 | .315 | 1.37 | 10.4 | 2.0 | 4.6 | 66.2 | 76 | 26 | 26 | 2 | 15 | 34 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3.09 |
| SP | Hershiser, O.Hershiser, Orel # >> | 31 | 1989 | R | 70 | 17 | 17 | 6 | 7 | 4.14 | .323 | 1.41 | 9.5 | 3.2 | 5.8 | 104.1 | 110 | 50 | 48 | 8 | 37 | 67 | 1 | 0 | 0 | 0 | 10 | 2 | 1 | 3.84 |
| SP | Bankhead, S.Bankhead, Scott >> | 26 | 1989 | R | 65 | 19 | 17 | 5 | 5 | 3.56 | .305 | 1.31 | 8.9 | 2.9 | 4.9 | 116.1 | 115 | 46 | 46 | 6 | 37 | 63 | 1 | 0 | 0 | 0 | 12 | 1 | 1 | 3.57 |
| SU | Orosco, J.Orosco, Jesse >> | 32 | 1989 | L | 96 | 33 | 0 | 1 | 2 | 4.86 | .301 | 1.29 | 8.2 | 3.5 | 7.6 | 33.1 | 30 | 18 | 18 | 0 | 13 | 28 | 0 | 4 | 2 | 0 | 0 | 0 | 0 | 2.48 |
| RP | Charlton, N.Charlton, Norm >> | 26 | 1989 | L | 83 | 34 | 0 | 7 | 4 | 5.32 | .324 | 1.44 | 8.6 | 4.4 | 8.8 | 47.1 | 45 | 28 | 28 | 6 | 23 | 46 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 4.17 |
| CL | Jones, D.Jones, Doug † >> | 32 | 1989 | R | 62 | 34 | 0 | 3 | 2 | 2.35 | .268 | 1.10 | 7.1 | 2.8 | 6.2 | 38.1 | 30 | 11 | 10 | 1 | 12 | 26 | 0 | 22 | 3 | 0 | 0 | 0 | 0 | 2.92 |
| RP | Lefferts, C.Lefferts, Craig >> | 32 | 1989 | L | 68 | 36 | 0 | 5 | 1 | 4.45 | .264 | 1.07 | 8.5 | 1.2 | 6.2 | 58.2 | 55 | 29 | 29 | 8 | 8 | 40 | 0 | 1 | 1 | 0 | 0 | 0 | 3 | 3.83 |
| RP | Parrett, J.Parrett, Jeff >> | 28 | 1989 | R | 56 | 20 | 0 | 2 | 0 | 6.12 | .348 | 1.60 | 11.2 | 3.2 | 5.8 | 25.0 | 31 | 17 | 17 | 2 | 9 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3.84 |