| year | team name | league | level | mlb | # | age | w | l | era | g | gs | cg | sho | gr | gf | sv | ip | h | r | er | hr | bb | so | wp | bk | hb | whip | h9 | hr9 | bb9 | so9 | ra9 | so/bb |
| 1980 | Gulf Coast Astros Blue | GCL | Rk | HOU | - | 21 | 0 | 0 | 1.69 | 10 | 0 | 0 | 0 | 10 | 0 | 4 | 16.0 | 10 | 3 | 3 | 0 | 7 | 15 | 0 | 0 | 1 | 1.06 | 5.63 | 0.00 | 3.94 | 8.44 | 1.69 | 2.14 |
| 1980 | Daytona Astros | FSL | A+ | HOU | - | 21 | 4 | 1 | 3.32 | 14 | 0 | 0 | 0 | 14 | 0 | 4 | 19.0 | 21 | 7 | 7 | 1 | 7 | 15 | 3 | 0 | 1 | 1.47 | 9.95 | 0.47 | 3.32 | 7.11 | 3.32 | 2.14 |
| 1981 | Daytona Astros | FSL | A+ | HOU | - | 22 | 6 | 9 | 3.04 | 53 | 0 | 0 | 0 | 53 | 48 | 13 | 77.0 | 67 | 35 | 26 | 1 | 40 | 79 | 10 | 0 | 5 | 1.39 | 7.83 | 0.12 | 4.68 | 9.23 | 4.09 | 1.98 |
| 1982 | Columbus Astros | Sou | AA | HOU | - | 23 | 5 | 7 | 3.90 | 52 | 0 | 0 | 0 | 52 | 42 | 12 | 92.1 | 88 | 46 | 40 | 5 | 38 | 86 | 7 | 0 | 5 | 1.36 | 8.58 | 0.49 | 3.70 | 8.38 | 4.48 | 2.26 |
| 1983 | Columbus Astros | Sou | AA | HOU | - | 24 | 5 | 9 | 4.63 | 45 | 0 | 0 | 0 | 45 | 28 | 5 | 89.1 | 95 | 53 | 46 | 7 | 53 | 51 | 6 | 0 | 3 | 1.66 | 9.57 | 0.71 | 5.34 | 5.14 | 5.34 | 0.96 |
| 1984 | Tulsa Drillers | Tex | AA | TEX | - | 25 | 3 | 3 | 3.96 | 19 | 1 | 0 | 0 | 18 | 8 | 0 | 38.2 | 36 | 18 | 17 | 3 | 22 | 23 | 3 | 0 | 2 | 1.50 | 8.38 | 0.70 | 5.12 | 5.35 | 4.19 | 1.05 |
| Tot: | Minors (5 yrs) | Minors | 23 | 29 | 3.76 | 193 | 1 | 0 | 0 | 126 | 192 | 38 | 332.1 | 317 | 162 | 139 | 17 | 167 | 269 | 29 | 0 | 17 | 1.46 | 8.58 | 0.46 | 4.52 | 7.28 | 4.39 | 1.61 | ||||
| Tot: | Rk (1 yrs) | Rk | 0 | 0 | 1.69 | 10 | 0 | 0 | 0 | 0 | 10 | 4 | 16.0 | 10 | 3 | 3 | 0 | 7 | 15 | 0 | 0 | 1 | 1.06 | 5.62 | 0.00 | 3.94 | 8.44 | 1.69 | 2.14 | ||||
| Tot: | A+ (2 yrs) | A+ | 10 | 10 | 3.09 | 67 | 0 | 0 | 0 | 48 | 67 | 17 | 96.0 | 88 | 42 | 33 | 2 | 47 | 94 | 13 | 0 | 6 | 1.41 | 8.25 | 0.19 | 4.41 | 8.81 | 3.94 | 2.00 | ||||
| Tot: | AA (3 yrs) | AA | 13 | 19 | 4.21 | 116 | 1 | 0 | 0 | 78 | 115 | 17 | 220.1 | 219 | 117 | 103 | 15 | 113 | 160 | 16 | 0 | 10 | 1.51 | 8.95 | 0.61 | 4.62 | 6.54 | 4.78 | 1.42 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 64 | 45 | 63 | 57 | 63 | 81 | .519 |