| 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 |
| 1977 | Gulf Coast Astros | GCL | Rk | HOU | - | 18 | 3 | 4 | 3.00 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 48.0 | 42 | 23 | 16 | 1 | 20 | 27 | 1 | 0 | 0 | 1.29 | 7.88 | 0.19 | 3.75 | 5.06 | 4.31 | 1.35 |
| 1977 | Cocoa Astros | FSL | A+ | HOU | - | 18 | 0 | 2 | 9.75 | 3 | 2 | 1 | 0 | 1 | 0 | 0 | 12.0 | 15 | 15 | 13 | 1 | 14 | 7 | 1 | 2 | 0 | 2.42 | 11.25 | 0.75 | 10.50 | 5.25 | 11.25 | 0.50 |
| 1978 | Gulf Coast Astros | GCL | Rk | HOU | - | 19 | 2 | 3 | 3.77 | 8 | 8 | 2 | 1 | 0 | 0 | 0 | 43.0 | 44 | 24 | 18 | 0 | 17 | 23 | 0 | 0 | 1 | 1.42 | 9.21 | 0.00 | 3.56 | 4.81 | 5.02 | 1.35 |
| 1978 | Daytona Astros | FSL | A+ | HOU | - | 19 | 1 | 9 | 8.84 | 12 | 12 | 1 | 0 | 0 | 0 | 0 | 57.0 | 85 | 64 | 56 | 3 | 34 | 31 | 2 | 0 | 6 | 2.09 | 13.42 | 0.47 | 5.37 | 4.89 | 10.11 | 0.91 |
| 1979 | Daytona Astros | FSL | A+ | HOU | - | 20 | 5 | 13 | 3.74 | 22 | 19 | 5 | 0 | 3 | 0 | 0 | 130.0 | 127 | 67 | 54 | 3 | 62 | 111 | 6 | 0 | 7 | 1.45 | 8.79 | 0.21 | 4.29 | 7.68 | 4.64 | 1.79 |
| 1979 | Columbus Astros | Sou | AA | HOU | - | 20 | 1 | 2 | 4.06 | 5 | 5 | 1 | 0 | 0 | 0 | 0 | 31.0 | 30 | 17 | 14 | 3 | 14 | 13 | 1 | 0 | 0 | 1.42 | 8.71 | 0.87 | 4.06 | 3.77 | 4.94 | 0.93 |
| 1980 | Columbus Astros | Sou | AA | HOU | - | 21 | 8 | 11 | 3.49 | 28 | 28 | 9 | 2 | 0 | 0 | 0 | 201.0 | 186 | 99 | 78 | 17 | 76 | 95 | 1 | 0 | 10 | 1.30 | 8.33 | 0.76 | 3.40 | 4.25 | 4.43 | 1.25 |
| 1981 | Columbus Astros | Sou | AA | HOU | - | 22 | 5 | 10 | 5.54 | 22 | 21 | 3 | 0 | 1 | 1 | 0 | 112.0 | 127 | 86 | 69 | 13 | 65 | 49 | 6 | 0 | 5 | 1.71 | 10.21 | 1.04 | 5.22 | 3.94 | 6.91 | 0.75 |
| 1981 | Tucson Toros | PCL | AAA | HOU | 26 | 22 | 1 | 4 | 7.36 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | 22.0 | 38 | 23 | 18 | 2 | 12 | 11 | 2 | 0 | 1 | 2.27 | 15.55 | 0.82 | 4.91 | 4.50 | 9.41 | 0.92 |
| Tot: | Minors (5 yrs) | Minors | 26 | 58 | 4.61 | 113 | 108 | 22 | 3 | 1 | 5 | 0 | 656.0 | 694 | 418 | 336 | 43 | 314 | 367 | 20 | 2 | 30 | 1.54 | 9.52 | 0.59 | 4.31 | 5.04 | 5.73 | 1.17 | ||||
| Tot: | Rk (2 yrs) | Rk | 5 | 7 | 3.36 | 16 | 16 | 2 | 1 | 0 | 0 | 0 | 91.0 | 86 | 47 | 34 | 1 | 37 | 50 | 1 | 0 | 1 | 1.35 | 8.51 | 0.10 | 3.66 | 4.95 | 4.65 | 1.35 | ||||
| Tot: | A+ (3 yrs) | A+ | 6 | 24 | 5.56 | 37 | 33 | 7 | 0 | 0 | 4 | 0 | 199.0 | 227 | 146 | 123 | 7 | 110 | 149 | 9 | 2 | 13 | 1.69 | 10.27 | 0.32 | 4.97 | 6.74 | 6.60 | 1.35 | ||||
| Tot: | AA (3 yrs) | AA | 14 | 23 | 4.21 | 55 | 54 | 13 | 2 | 1 | 1 | 0 | 344.0 | 343 | 202 | 161 | 33 | 155 | 157 | 8 | 0 | 15 | 1.45 | 8.97 | 0.86 | 4.06 | 4.11 | 5.28 | 1.01 | ||||
| Tot: | AAA (1 yrs) | AAA | 1 | 4 | 7.36 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | 22.0 | 38 | 23 | 18 | 2 | 12 | 11 | 2 | 0 | 1 | 2.27 | 15.55 | 0.82 | 4.91 | 4.50 | 9.41 | 0.92 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| year | team name | league | level | mlb | # | age | pos | tbc+ | g | ab | r | h | 2b | 3b | hr | rbi | sb | cs | bb | so | hbp | sh | sf | ibb | gdp | tb | pa | xbh | 1b | avg | obp | slg | ops | seca | iso | babip | bb% | so% | so/bb | ab/hr |
| Tot: | Minors (1 yrs) | Minors | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Tot: | Rk (1 yrs) | Rk | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Tot: | A+ (1 yrs) | A+ | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 33 | 47 | 42 | 37 | 42 | 90 | .434 |