| 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 |
| 1979 | Gulf Coast Astros | GCL | Rk | HOU | - | 22 | 1 | 0 | 1.13 | 3 | 0 | 0 | 0 | 3 | 0 | 0 | 8.0 | 7 | 1 | 1 | 0 | 2 | 5 | 0 | 0 | 0 | 1.13 | 7.88 | 0.00 | 2.25 | 5.63 | 1.13 | 2.50 |
| 1979 | Daytona Astros | FSL | A+ | HOU | - | 22 | 2 | 5 | 4.11 | 12 | 8 | 2 | 1 | 4 | 0 | 1 | 57.0 | 47 | 28 | 26 | 6 | 24 | 37 | 3 | 0 | 1 | 1.25 | 7.42 | 0.95 | 3.79 | 5.84 | 4.42 | 1.54 |
| 1980 | Daytona Astros | FSL | A+ | HOU | - | 23 | 12 | 10 | 2.16 | 24 | 24 | 13 | 3 | 0 | 0 | 0 | 179.0 | 149 | 58 | 43 | 10 | 49 | 89 | 3 | 0 | 3 | 1.11 | 7.49 | 0.50 | 2.46 | 4.47 | 2.92 | 1.82 |
| 1981 | Columbus Astros | Sou | AA | HOU | - | 24 | 4 | 6 | 5.52 | 17 | 14 | 1 | 0 | 3 | 1 | 0 | 93.0 | 112 | 64 | 57 | 12 | 33 | 60 | 5 | 0 | 2 | 1.56 | 10.84 | 1.16 | 3.19 | 5.81 | 6.19 | 1.82 |
| Tot: | Minors (3 yrs) | Minors | 19 | 21 | 3.39 | 56 | 46 | 16 | 4 | 1 | 10 | 1 | 337.0 | 315 | 151 | 127 | 28 | 108 | 191 | 11 | 0 | 6 | 1.26 | 8.41 | 0.75 | 2.88 | 5.10 | 4.03 | 1.77 | ||||
| Tot: | Rk (1 yrs) | Rk | 1 | 0 | 1.12 | 3 | 0 | 0 | 0 | 0 | 3 | 0 | 8.0 | 7 | 1 | 1 | 0 | 2 | 5 | 0 | 0 | 0 | 1.12 | 7.88 | 0.00 | 2.25 | 5.62 | 1.12 | 2.50 | ||||
| Tot: | A+ (2 yrs) | A+ | 14 | 15 | 2.63 | 36 | 32 | 15 | 4 | 0 | 4 | 1 | 236.0 | 196 | 86 | 69 | 16 | 73 | 126 | 6 | 0 | 4 | 1.14 | 7.47 | 0.61 | 2.78 | 4.81 | 3.28 | 1.73 | ||||
| Tot: | AA (1 yrs) | AA | 4 | 6 | 5.52 | 17 | 14 | 1 | 0 | 1 | 3 | 0 | 93.0 | 112 | 64 | 57 | 12 | 33 | 60 | 5 | 0 | 2 | 1.56 | 10.84 | 1.16 | 3.19 | 5.81 | 6.19 | 1.82 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 39 | 79 | 60 | 73 | 60 | 62 | .511 |