| 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 |
| 1976 | Memphis Blues | IL | AAA | HOU | - | 20 | 10 | 6 | 4.53 | 30 | 23 | 3 | 0 | 7 | 0 | 0 | 165.0 | 208 | 102 | 83 | 22 | 51 | 62 | 0 | 0 | 4 | 1.57 | 11.35 | 1.20 | 2.78 | 3.38 | 5.56 | 1.22 |
| 1976 | Houston Astros | NL | MLB | HOU | 51 | 20 | 3 | 1 | 2.79 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | 29.0 | 26 | 12 | 9 | 2 | 7 | 9 | 0 | 0 | 0 | 1.14 | 8.07 | 0.62 | 2.17 | 2.79 | 3.72 | 1.29 |
| 1977 | Houston Astros | NL | MLB | HOU | 42 | 21 | 9 | 14 | 3.48 | 34 | 30 | 5 | 0 | 4 | 1 | 0 | 214.2 | 237 | 88 | 83 | 20 | 52 | 83 | 0 | 3 | 3 | 1.35 | 9.94 | 0.84 | 2.18 | 3.48 | 3.69 | 1.60 |
| 1978 | Houston Astros | NL | MLB | HOU | 42 | 22 | 9 | 14 | 3.94 | 33 | 30 | 9 | 1 | 3 | 2 | 1 | 210.1 | 204 | 100 | 92 | 20 | 66 | 77 | 4 | 3 | 9 | 1.28 | 8.73 | 0.86 | 2.82 | 3.29 | 4.28 | 1.17 |
| 1979 | Syracuse Chiefs | IL | AAA | TOR | - | 23 | 3 | 0 | 1.80 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 25.0 | 20 | 5 | 5 | 1 | 7 | 13 | 1 | 0 | 0 | 1.08 | 7.20 | 0.36 | 2.52 | 4.68 | 1.80 | 1.86 |
| 1979 | Toronto Blue Jays | AL | MLB | TOR | 40 | 23 | 1 | 9 | 6.29 | 18 | 10 | 2 | 0 | 8 | 5 | 0 | 83.0 | 97 | 64 | 58 | 14 | 34 | 40 | 2 | 0 | 3 | 1.58 | 10.52 | 1.52 | 3.69 | 4.34 | 6.94 | 1.18 |
| 1980 | Wichita Aeros | Amer | AAA | CHN | - | 24 | 6 | 10 | 5.13 | 27 | 17 | 3 | 0 | 10 | 0 | 0 | 128.0 | 158 | 85 | 73 | 18 | 34 | 42 | 2 | 0 | 4 | 1.50 | 11.11 | 1.27 | 2.39 | 2.95 | 5.98 | 1.24 |
| Tot: | MLB (4 yrs) | MLB | 22 | 38 | 4.06 | 89 | 74 | 17 | 1 | 8 | 15 | 1 | 537.0 | 564 | 264 | 242 | 56 | 159 | 209 | 6 | 6 | 15 | 1.35 | 9.45 | 0.94 | 2.66 | 3.50 | 4.42 | 1.31 | ||||
| Tot: | AL (1 yrs) | AL | 1 | 9 | 6.29 | 18 | 10 | 2 | 0 | 5 | 8 | 0 | 83.0 | 97 | 64 | 58 | 14 | 34 | 40 | 2 | 0 | 3 | 1.58 | 10.52 | 1.52 | 3.69 | 4.34 | 6.94 | 1.18 | ||||
| Tot: | NL (3 yrs) | NL | 21 | 29 | 3.65 | 71 | 64 | 15 | 1 | 3 | 7 | 1 | 454.0 | 467 | 200 | 184 | 42 | 125 | 169 | 4 | 6 | 12 | 1.30 | 9.26 | 0.83 | 2.48 | 3.35 | 3.96 | 1.35 | ||||
| Tot: | Minors (3 yrs) | Minors | 19 | 16 | 4.56 | 61 | 44 | 6 | 0 | 0 | 17 | 0 | 318.0 | 386 | 192 | 161 | 41 | 92 | 117 | 3 | 0 | 8 | 1.50 | 10.92 | 1.16 | 2.60 | 3.31 | 5.43 | 1.27 | ||||
| Tot: | AAA (3 yrs) | AAA | 19 | 16 | 4.56 | 61 | 44 | 6 | 0 | 0 | 17 | 0 | 318.0 | 386 | 192 | 161 | 41 | 92 | 117 | 3 | 0 | 8 | 1.50 | 10.92 | 1.16 | 2.60 | 3.31 | 5.43 | 1.27 | ||||
| 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 |
| 1976 | Houston Astros | NL | MLB | HOU | 51 | 20 | P | 4 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | .000 | .111 | .000 | .111 | .125 | .000 | .000 | 10.00 | 30.00 | 3.00 | 0.00 | |
| 1977 | Houston Astros | NL | MLB | HOU | 42 | 21 | P | 35 | 69 | 2 | 6 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 25 | 1 | 5 | 0 | 0 | 1 | 8 | 75 | 1 | 5 | .087 | .100 | .116 | .216 | .029 | .029 | .136 | 0.00 | 33.33 | 0.00 | 0.00 | |
| 1978 | Houston Astros | NL | MLB | HOU | 42 | 22 | P | 33 | 64 | 3 | 11 | 1 | 0 | 0 | 3 | 0 | 0 | 4 | 22 | 0 | 6 | 0 | 0 | 1 | 12 | 74 | 1 | 10 | .172 | .221 | .188 | .409 | .078 | .016 | .262 | 5.41 | 29.73 | 5.50 | 0.00 | |
| 1980 | Wichita Aeros | Amer | AAA | CHN | - | 24 | P | 29 | 14 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 1 | 14 | 0 | 1 | .071 | .071 | .071 | .142 | -0.071 | .000 | .143 | 0.00 | 50.00 | 0.00 | 0.00 | |
| Tot: | MLB (3 yrs) | MLB | 72 | 141 | 5 | 17 | 1 | 1 | 0 | 4 | 0 | 0 | 5 | 50 | 1 | 12 | 0 | 0 | 2 | 20 | 159 | 2 | 15 | .121 | .156 | .142 | .298 | .057 | .021 | .187 | 3.14 | 31.45 | 10.00 | |||||||
| Tot: | NL (3 yrs) | NL | 72 | 141 | 5 | 17 | 1 | 1 | 0 | 4 | 0 | 0 | 5 | 50 | 1 | 12 | 0 | 0 | 2 | 20 | 159 | 2 | 15 | .121 | .156 | .142 | .298 | .057 | .021 | .187 | 3.14 | 31.45 | 10.00 | |||||||
| Tot: | Minors (1 yrs) | Minors | 29 | 14 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 1 | 14 | 0 | 1 | .071 | .071 | .071 | .143 | -0.071 | .000 | .143 | 0.00 | 50.00 | ||||||||
| Tot: | AAA (1 yrs) | AAA | 29 | 14 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 1 | 14 | 0 | 1 | .071 | .071 | .071 | .143 | -0.071 | .000 | .143 | 0.00 | 50.00 | ||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 16 | 80 | 41 | 49 | 41 | 62 | .465 |