| 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 | Charleston Charlies | IL | AAA | HOU | - | 24 | 9 | 11 | 3.01 | 29 | 29 | 12 | 1 | 0 | 0 | 0 | 206.0 | 188 | 94 | 69 | 13 | 59 | 86 | 7 | 2 | 0 | 1.20 | 8.21 | 0.57 | 2.58 | 3.76 | 4.11 | 1.46 |
| 1978 | Charleston Charlies | IL | AAA | HOU | - | 25 | 8 | 1 | 2.36 | 11 | 11 | 5 | 2 | 0 | 0 | 0 | 80.0 | 69 | 28 | 21 | 8 | 18 | 31 | 2 | 0 | 2 | 1.09 | 7.76 | 0.90 | 2.03 | 3.49 | 3.15 | 1.72 |
| 1978 | Houston Astros | NL | MLB | HOU | 34 | 25 | 1 | 2 | 4.67 | 17 | 1 | 0 | 0 | 16 | 5 | 0 | 34.2 | 43 | 19 | 18 | 2 | 10 | 17 | 0 | 1 | 0 | 1.53 | 11.16 | 0.52 | 2.60 | 4.41 | 4.93 | 1.70 |
| 1979 | Charleston Charlies | IL | AAA | HOU | - | 26 | 0 | 1 | 1.80 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 10.0 | 15 | 6 | 2 | 0 | 6 | 5 | 0 | 0 | 0 | 2.10 | 13.50 | 0.00 | 5.40 | 4.50 | 5.40 | 0.83 |
| 1979 | Houston Astros | NL | MLB | HOU | 38 | 26 | 4 | 7 | 3.26 | 31 | 16 | 2 | 2 | 15 | 3 | 0 | 121.1 | 122 | 45 | 44 | 6 | 30 | 37 | 0 | 1 | 2 | 1.25 | 9.05 | 0.45 | 2.23 | 2.74 | 3.34 | 1.23 |
| 1980 | Tucson Toros | PCL | AAA | HOU | - | 27 | 14 | 11 | 5.03 | 28 | 28 | 8 | 0 | 0 | 0 | 0 | 188.0 | 240 | 123 | 105 | 14 | 69 | 85 | 6 | 1 | 3 | 1.64 | 11.49 | 0.67 | 3.30 | 4.07 | 5.89 | 1.23 |
| 1981 | Toledo Mud Hens | IL | AAA | MIN | - | 28 | 10 | 12 | 3.91 | 27 | 27 | 8 | 1 | 0 | 0 | 0 | 184.0 | 210 | 91 | 80 | 9 | 65 | 77 | 4 | 2 | 1 | 1.49 | 10.27 | 0.44 | 3.18 | 3.77 | 4.45 | 1.18 |
| 1982 | Columbus Astros | Sou | AA | HOU | - | 29 | 3 | 1 | 1.08 | 10 | 3 | 0 | 0 | 7 | 5 | 1 | 33.1 | 30 | 6 | 4 | 1 | 9 | 14 | 2 | 0 | 0 | 1.17 | 8.10 | 0.27 | 2.43 | 3.78 | 1.62 | 1.56 |
| 1982 | Toledo Mud Hens | IL | AAA | MIN | - | 29 | 4 | 11 | 4.73 | 18 | 18 | 1 | 0 | 0 | 0 | 0 | 104.2 | 120 | 70 | 55 | 14 | 36 | 52 | 4 | 0 | 4 | 1.49 | 10.32 | 1.20 | 3.10 | 4.47 | 6.02 | 1.44 |
| Tot: | MLB (2 yrs) | MLB | 5 | 9 | 3.58 | 48 | 17 | 2 | 2 | 8 | 31 | 0 | 156.0 | 165 | 64 | 62 | 8 | 40 | 54 | 0 | 2 | 2 | 1.31 | 9.52 | 0.46 | 2.31 | 3.12 | 3.69 | 1.35 | ||||
| Tot: | NL (2 yrs) | NL | 5 | 9 | 3.58 | 48 | 17 | 2 | 2 | 8 | 31 | 0 | 156.0 | 165 | 64 | 62 | 8 | 40 | 54 | 0 | 2 | 2 | 1.31 | 9.52 | 0.46 | 2.31 | 3.12 | 3.69 | 1.35 | ||||
| Tot: | Minors (6 yrs) | Minors | 48 | 48 | 3.75 | 125 | 118 | 34 | 4 | 5 | 7 | 1 | 806.0 | 872 | 418 | 336 | 59 | 262 | 350 | 25 | 5 | 10 | 1.41 | 9.74 | 0.66 | 2.93 | 3.91 | 4.67 | 1.34 | ||||
| Tot: | AA (1 yrs) | AA | 3 | 1 | 1.08 | 10 | 3 | 0 | 0 | 5 | 7 | 1 | 33.1 | 30 | 6 | 4 | 1 | 9 | 14 | 2 | 0 | 0 | 1.17 | 8.10 | 0.27 | 2.43 | 3.78 | 1.62 | 1.56 | ||||
| Tot: | AAA (6 yrs) | AAA | 45 | 47 | 3.87 | 115 | 115 | 34 | 4 | 0 | 0 | 0 | 772.2 | 842 | 412 | 332 | 58 | 253 | 336 | 23 | 5 | 10 | 1.42 | 9.81 | 0.68 | 2.95 | 3.91 | 4.80 | 1.33 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| 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 |
| 1978 | Houston Astros | NL | MLB | HOU | 34 | 25 | P | 17 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 40.00 | 0.00 | 0.00 | |
| 1979 | Houston Astros | NL | MLB | HOU | 38 | 26 | P | 31 | 31 | 2 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 18 | 0 | 2 | 0 | 0 | 0 | 9 | 36 | 1 | 7 | .258 | .324 | .290 | .614 | .129 | .032 | .615 | 8.33 | 50.00 | 6.00 | 0.00 | |
| Tot: | MLB (2 yrs) | MLB | 48 | 36 | 2 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 20 | 0 | 2 | 0 | 0 | 0 | 9 | 41 | 1 | 7 | .222 | .282 | .250 | .532 | .111 | .028 | .500 | 7.32 | 48.78 | 6.67 | |||||||
| Tot: | NL (2 yrs) | NL | 48 | 36 | 2 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 20 | 0 | 2 | 0 | 0 | 0 | 9 | 41 | 1 | 7 | .222 | .282 | .250 | .532 | .111 | .028 | .500 | 7.32 | 48.78 | 6.67 | |||||||
| Tot: | Minors (1 yrs) | Minors | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Tot: | AAA (1 yrs) | AAA | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 14 | 84 | 40 | 54 | 40 | 64 | .511 |