| SP | Smoltz, J.Smoltz, John >> | 22 | 1989 | R | 94 | 34 | 34 | 8 | 18 | 3.32 | .300 | 1.28 | 8.1 | 3.4 | 5.2 | 252.1 | 227 | 98 | 93 | 18 | 96 | 146 | 9 | 0 | 0 | 1 | 25 | 2 | 3 | 3.94 |
| SP | Perez, P.Perez, Pascual >> | 32 | 1989 | R | 82 | 33 | 33 | 8 | 11 | 3.79 | .314 | 1.37 | 9.3 | 3.1 | 5.2 | 206.2 | 214 | 90 | 87 | 20 | 70 | 120 | 0 | 0 | 0 | 0 | 21 | 0 | 4 | 4.12 |
| SP | Robinson, D.Robinson, Don # >> | 32 | 1989 | R | 68 | 32 | 32 | 12 | 8 | 4.35 | .317 | 1.39 | 10.1 | 2.4 | 5.6 | 196.1 | 219 | 97 | 95 | 17 | 53 | 123 | 0 | 0 | 0 | 0 | 18 | 1 | 3 | 3.70 |
| SP | Maddux, G.Maddux, Greg >> | 23 | 1989 | R | 48 | 32 | 32 | 12 | 10 | 3.59 | .322 | 1.43 | 9.4 | 3.5 | 4.7 | 228.1 | 238 | 97 | 91 | 9 | 88 | 118 | 2 | 0 | 0 | 0 | 22 | 0 | 5 | 3.64 |
| SP | Darling, R.Darling, Ron >> | 29 | 1989 | R | 40 | 31 | 31 | 7 | 18 | 4.78 | .340 | 1.53 | 10.3 | 3.5 | 5.5 | 197.2 | 226 | 111 | 105 | 19 | 76 | 120 | 2 | 0 | 0 | 0 | 15 | 3 | 10 | 4.24 |
| RP | DiPino, F.DiPino, Frank >> | 33 | 1989 | L | 70 | 76 | 0 | 4 | 7 | 2.49 | .260 | 1.06 | 7.5 | 2.0 | 5.0 | 101.1 | 84 | 32 | 28 | 9 | 23 | 56 | 0 | 10 | 3 | 0 | 0 | 0 | 0 | 3.73 |
| RP | Minton, G.Minton, Greg >> | 38 | 1989 | R | 46 | 60 | 0 | 6 | 4 | 3.88 | .325 | 1.44 | 8.8 | 4.3 | 5.3 | 72.0 | 70 | 31 | 31 | 6 | 34 | 42 | 0 | 7 | 4 | 0 | 0 | 0 | 4 | 4.33 |
| RP | Williamson, M.Williamson, Mark >> | 30 | 1989 | R | 32 | 42 | 0 | 7 | 2 | 1.81 | .284 | 1.19 | 7.7 | 3.2 | 4.3 | 54.2 | 46 | 11 | 11 | 0 | 19 | 26 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 3.09 |