| 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 | Maine | Yankee | NCAA-1 | Sr | 21 | 9 | 2 | 2.06 | 12 | 11 | 9 | 2 | 1 | 0 | 0 | 91.2 | 69 | 29 | 21 | 0 | 23 | 60 | 0 | 0 | 0 | 1.00 | 6.77 | 0.00 | 2.26 | 5.89 | 2.85 | 2.61 | |
| 1976 | Memphis Blues | IL | AAA | HOU | - | 21 | 0 | 0 | 2.70 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 10.0 | 11 | 5 | 3 | 2 | 3 | 8 | 2 | 0 | 0 | 1.40 | 9.90 | 1.80 | 2.70 | 7.20 | 4.50 | 2.67 |
| 1977 | Cocoa Astros | FSL | A+ | HOU | - | 22 | 4 | 5 | 2.55 | 33 | 0 | 0 | 0 | 33 | 0 | 8 | 60.0 | 54 | 24 | 17 | 1 | 26 | 35 | 4 | 0 | 0 | 1.33 | 8.10 | 0.15 | 3.90 | 5.25 | 3.60 | 1.35 |
| 1977 | Columbus Astros | Sou | AA | HOU | - | 22 | 0 | 0 | 6.43 | 6 | 0 | 0 | 0 | 6 | 0 | 0 | 7.0 | 13 | 5 | 5 | 1 | 3 | 9 | 0 | 0 | 0 | 2.29 | 16.71 | 1.29 | 3.86 | 11.57 | 6.43 | 3.00 |
| 1978 | Columbus Astros | Sou | AA | HOU | - | 23 | 0 | 3 | 3.38 | 21 | 0 | 0 | 0 | 21 | 0 | 2 | 32.0 | 37 | 15 | 12 | 1 | 10 | 24 | 3 | 0 | 1 | 1.47 | 10.41 | 0.28 | 2.81 | 6.75 | 4.22 | 2.40 |
| 1979 | Columbus Astros | Sou | AA | HOU | - | 24 | 4 | 2 | 1.00 | 12 | 3 | 3 | 1 | 9 | 0 | 1 | 54.0 | 32 | 7 | 6 | 3 | 10 | 47 | 1 | 0 | 0 | 0.78 | 5.33 | 0.50 | 1.67 | 7.83 | 1.17 | 4.70 |
| 1979 | Houston Astros | NL | MLB | HOU | 42 | 24 | 3 | 0 | 1.69 | 26 | 0 | 0 | 0 | 26 | 12 | 4 | 32.0 | 20 | 6 | 6 | 0 | 17 | 13 | 2 | 0 | 0 | 1.16 | 5.63 | 0.00 | 4.78 | 3.66 | 1.69 | 0.76 |
| 1980 | Tucson Toros | PCL | AAA | HOU | - | 25 | 5 | 3 | 4.78 | 34 | 0 | 0 | 0 | 34 | 0 | 15 | 49.0 | 44 | 28 | 26 | 2 | 28 | 47 | 1 | 0 | 1 | 1.47 | 8.08 | 0.37 | 5.14 | 8.63 | 5.14 | 1.68 |
| 1980 | Houston Astros | NL | MLB | HOU | 42 | 25 | 2 | 0 | 5.92 | 14 | 0 | 0 | 0 | 14 | 2 | 0 | 24.1 | 24 | 16 | 16 | 2 | 10 | 9 | 3 | 0 | 2 | 1.40 | 8.88 | 0.74 | 3.70 | 3.33 | 5.92 | 0.90 |
| 1981 | Tucson Toros | PCL | AAA | HOU | - | 26 | 5 | 4 | 3.62 | 50 | 0 | 0 | 0 | 50 | 38 | 9 | 87.0 | 85 | 43 | 35 | 4 | 32 | 62 | 10 | 0 | 2 | 1.34 | 8.79 | 0.41 | 3.31 | 6.41 | 4.45 | 1.94 |
| 1982 | Tucson Toros | PCL | AAA | HOU | 9 | 27 | 4 | 4 | 3.28 | 34 | 0 | 0 | 0 | 34 | 33 | 9 | 46.2 | 49 | 21 | 17 | 2 | 23 | 31 | 0 | 0 | 3 | 1.54 | 9.45 | 0.39 | 4.44 | 5.98 | 4.05 | 1.35 |
| 1982 | Houston Astros | NL | MLB | HOU | 42 | 27 | 1 | 2 | 4.21 | 22 | 0 | 0 | 0 | 22 | 13 | 3 | 25.2 | 29 | 12 | 12 | 0 | 6 | 18 | 0 | 1 | 0 | 1.36 | 10.17 | 0.00 | 2.10 | 6.31 | 4.21 | 3.00 |
| 1983 | Tucson Toros | PCL | AAA | HOU | - | 28 | 3 | 8 | 4.59 | 47 | 0 | 0 | 0 | 47 | 38 | 14 | 68.2 | 66 | 37 | 35 | 4 | 30 | 63 | 13 | 0 | 4 | 1.40 | 8.65 | 0.52 | 3.93 | 8.26 | 4.85 | 2.10 |
| 1984 | Denver Zephyrs | Amer | AAA | CHA | - | 29 | 5 | 1 | 1.95 | 26 | 0 | 0 | 0 | 26 | 22 | 8 | 37.0 | 27 | 8 | 8 | 4 | 10 | 36 | 2 | 0 | 1 | 1.00 | 6.57 | 0.97 | 2.43 | 8.76 | 1.95 | 3.60 |
| 1984 | Chicago White Sox | AL | MLB | CHA | 53 | 29 | 3 | 3 | 3.76 | 21 | 0 | 0 | 0 | 21 | 10 | 0 | 40.2 | 36 | 18 | 17 | 2 | 15 | 25 | 2 | 0 | 3 | 1.25 | 7.97 | 0.44 | 3.32 | 5.53 | 3.98 | 1.67 |
| 1985 | Indianapolis Indians | Amer | AAA | MON | - | 30 | 0 | 0 | 4.50 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 2.0 | 2 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 1 | 1.50 | 9.00 | 0.00 | 4.50 | 9.00 | 4.50 | 2.00 |
| 1985 | Montreal Expos | NL | MLB | MON | 42 | 30 | 3 | 3 | 3.44 | 42 | 0 | 0 | 0 | 42 | 15 | 2 | 68.0 | 58 | 28 | 26 | 5 | 22 | 34 | 1 | 5 | 2 | 1.18 | 7.68 | 0.66 | 2.91 | 4.50 | 3.71 | 1.55 |
| 1986 | West Palm Beach Expos | FSL | A+ | MON | - | 31 | 0 | 0 | 3.95 | 9 | 0 | 0 | 0 | 9 | 4 | 2 | 13.2 | 12 | 8 | 6 | 2 | 2 | 20 | 1 | 0 | 0 | 1.02 | 7.90 | 1.32 | 1.32 | 13.17 | 5.27 | 10.00 |
| 1986 | Indianapolis Indians | Amer | AAA | MON | - | 31 | 3 | 0 | 2.49 | 22 | 0 | 0 | 0 | 22 | 13 | 4 | 43.1 | 47 | 12 | 12 | 5 | 17 | 32 | 5 | 0 | 3 | 1.48 | 9.76 | 1.04 | 3.53 | 6.65 | 2.49 | 1.88 |
| 1986 | Montreal Expos | NL | MLB | MON | 42 | 31 | 0 | 4 | 6.28 | 21 | 0 | 0 | 0 | 21 | 10 | 1 | 28.2 | 33 | 20 | 20 | 2 | 10 | 20 | 1 | 2 | 1 | 1.50 | 10.36 | 0.63 | 3.14 | 6.28 | 6.28 | 2.00 |
| Tot: | MLB (6 yrs) | MLB | 12 | 12 | 3.98 | 146 | 0 | 0 | 0 | 62 | 146 | 10 | 219.1 | 200 | 100 | 97 | 11 | 80 | 119 | 9 | 8 | 8 | 1.28 | 8.21 | 0.45 | 3.28 | 4.88 | 4.10 | 1.49 | ||||
| Tot: | AL (1 yrs) | AL | 3 | 3 | 3.76 | 21 | 0 | 0 | 0 | 10 | 21 | 0 | 40.2 | 36 | 18 | 17 | 2 | 15 | 25 | 2 | 0 | 3 | 1.25 | 7.97 | 0.44 | 3.32 | 5.53 | 3.98 | 1.67 | ||||
| Tot: | NL (5 yrs) | NL | 9 | 9 | 4.03 | 125 | 0 | 0 | 0 | 52 | 125 | 10 | 178.2 | 164 | 82 | 80 | 9 | 65 | 94 | 7 | 8 | 5 | 1.28 | 8.26 | 0.45 | 3.27 | 4.74 | 4.13 | 1.45 | ||||
| Tot: | Minors (11 yrs) | Minors | 33 | 30 | 3.23 | 297 | 4 | 3 | 1 | 149 | 293 | 72 | 510.1 | 479 | 214 | 183 | 31 | 195 | 416 | 42 | 0 | 16 | 1.32 | 8.45 | 0.55 | 3.44 | 7.34 | 3.77 | 2.13 | ||||
| Tot: | A+ (2 yrs) | A+ | 4 | 5 | 2.81 | 42 | 0 | 0 | 0 | 4 | 42 | 10 | 73.2 | 66 | 32 | 23 | 3 | 28 | 55 | 5 | 0 | 0 | 1.28 | 8.06 | 0.37 | 3.42 | 6.72 | 3.91 | 1.96 | ||||
| Tot: | AA (3 yrs) | AA | 4 | 5 | 2.23 | 39 | 3 | 3 | 1 | 0 | 36 | 3 | 93.0 | 82 | 27 | 23 | 5 | 23 | 80 | 4 | 0 | 1 | 1.13 | 7.94 | 0.48 | 2.23 | 7.74 | 2.61 | 3.48 | ||||
| Tot: | AAA (8 yrs) | AAA | 25 | 20 | 3.59 | 216 | 1 | 0 | 0 | 145 | 215 | 59 | 343.2 | 331 | 155 | 137 | 23 | 144 | 281 | 33 | 0 | 15 | 1.38 | 8.67 | 0.60 | 3.77 | 7.36 | 4.06 | 1.95 | ||||
| Tot: | College (1 yrs) | College | 9 | 2 | 2.06 | 12 | 11 | 9 | 2 | 0 | 1 | 0 | 91.2 | 69 | 29 | 21 | 0 | 23 | 60 | 0 | 0 | 0 | 1.00 | 6.77 | 0.00 | 2.26 | 5.89 | 2.85 | 2.61 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | College - 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 |
| 1977 | Cocoa Astros | FSL | A+ | HOU | - | 22 | P | 34 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1.000 | 1.000 | 1.000 | 2.000 | .000 | .000 | 1.000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 1979 | Houston Astros | NL | MLB | HOU | 42 | 24 | P | 26 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | 0.00 | 0.00 | |
| 1980 | Houston Astros | NL | MLB | HOU | 42 | 25 | P | 14 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 4 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 50.00 | 0.00 | 0.00 | |
| 1982 | Houston Astros | NL | MLB | HOU | 42 | 27 | P | 22 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | 0.00 | 0.00 | |
| 1983 | Tucson Toros | PCL | AAA | HOU | - | 28 | P | 47 | 3 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 5 | 0 | 1 | .333 | .500 | .333 | .833 | .333 | .000 | 1.000 | 20.00 | 40.00 | 2.00 | 0.00 | |
| 1985 | Montreal Expos | NL | MLB | MON | 42 | 30 | P | 42 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | 0.00 | 0.00 | |
| 1986 | West Palm Beach Expos | FSL | A+ | MON | - | 31 | P | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 1986 | Indianapolis Indians | Amer | AAA | MON | - | 31 | P | 22 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | 0.00 | 0.00 | |
| 1986 | Montreal Expos | NL | MLB | MON | 42 | 31 | P | 21 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Tot: | MLB (5 yrs) | MLB | 125 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 1 | 0 | 0 | 1 | 0 | 10 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 60.00 | ||||||||
| Tot: | NL (5 yrs) | NL | 125 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 1 | 0 | 0 | 1 | 0 | 10 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 60.00 | ||||||||
| Tot: | Minors (3 yrs) | Minors | 118 | 7 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 3 | 0 | 1 | 0 | 0 | 0 | 2 | 9 | 0 | 2 | .286 | .375 | .286 | .661 | .143 | .000 | .500 | 11.11 | 33.33 | 3.00 | |||||||
| Tot: | A+ (2 yrs) | A+ | 43 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 1 | .333 | .333 | .333 | .667 | .000 | .000 | .333 | 0.00 | 0.00 | ||||||||
| Tot: | AA (1 yrs) | AA | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Tot: | AAA (2 yrs) | AAA | 69 | 4 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 3 | 0 | 1 | 0 | 0 | 0 | 1 | 6 | 0 | 1 | .250 | .400 | .250 | .650 | .250 | .000 | 1.000 | 16.67 | 50.00 | 3.00 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 61 | 65 | 60 | 68 | 60 | 52 | .510 |