| 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 | - | 18 | 2 | 0 | 2.57 | 9 | 0 | 0 | 0 | 9 | 0 | 0 | 14.0 | 17 | 6 | 4 | 0 | 10 | 10 | 3 | 0 | 0 | 1.93 | 10.93 | 0.00 | 6.43 | 6.43 | 3.86 | 1.00 |
| 1980 | Gulf Coast Astros Blue | GCL | Rk | HOU | - | 19 | 5 | 2 | 3.05 | 11 | 11 | 0 | 0 | 0 | 0 | 0 | 62.0 | 65 | 26 | 21 | 2 | 15 | 37 | 1 | 0 | 2 | 1.29 | 9.44 | 0.29 | 2.18 | 5.37 | 3.77 | 2.47 |
| 1981 | Daytona Astros | FSL | A+ | HOU | - | 20 | 6 | 5 | 3.42 | 13 | 12 | 2 | 0 | 1 | 0 | 0 | 79.0 | 67 | 36 | 30 | 1 | 34 | 61 | 1 | 0 | 6 | 1.28 | 7.63 | 0.11 | 3.87 | 6.95 | 4.10 | 1.79 |
| 1982 | Daytona Astros | FSL | A+ | HOU | - | 21 | 6 | 6 | 4.98 | 21 | 17 | 3 | 0 | 4 | 0 | 0 | 99.1 | 114 | 70 | 55 | 7 | 52 | 50 | 6 | 0 | 5 | 1.67 | 10.33 | 0.63 | 4.71 | 4.53 | 6.34 | 0.96 |
| 1983 | Daytona Astros | FSL | A+ | HOU | - | 22 | 10 | 3 | 2.99 | 18 | 17 | 1 | 0 | 1 | 0 | 0 | 102.1 | 86 | 46 | 34 | 5 | 27 | 73 | 6 | 0 | 5 | 1.10 | 7.56 | 0.44 | 2.37 | 6.42 | 4.05 | 2.70 |
| 1984 | Tucson Toros | PCL | AAA | HOU | - | 23 | 6 | 9 | 4.91 | 28 | 26 | 1 | 0 | 2 | 2 | 0 | 146.2 | 153 | 96 | 80 | 8 | 65 | 107 | 12 | 0 | 3 | 1.49 | 9.39 | 0.49 | 3.99 | 6.57 | 5.89 | 1.65 |
| 1985 | Tucson Toros | PCL | AAA | HOU | - | 24 | 1 | 1 | 3.58 | 11 | 6 | 0 | 0 | 5 | 4 | 0 | 37.2 | 35 | 19 | 15 | 0 | 10 | 25 | 1 | 0 | 1 | 1.19 | 8.36 | 0.00 | 2.39 | 5.97 | 4.54 | 2.50 |
| 1986 | Tucson Toros | PCL | AAA | HOU | - | 25 | 8 | 7 | 4.71 | 22 | 21 | 4 | 0 | 1 | 1 | 1 | 128.0 | 139 | 79 | 67 | 13 | 27 | 84 | 3 | 0 | 2 | 1.30 | 9.77 | 0.91 | 1.90 | 5.91 | 5.55 | 3.11 |
| 1986 | Houston Astros | NL | MLB | HOU | 38 | 25 | 2 | 3 | 3.90 | 9 | 4 | 0 | 0 | 5 | 1 | 0 | 27.2 | 33 | 15 | 12 | 2 | 12 | 9 | 1 | 0 | 0 | 1.63 | 10.73 | 0.65 | 3.90 | 2.93 | 4.88 | 0.75 |
| 1987 | Tucson Toros | PCL | AAA | HOU | - | 26 | 3 | 2 | 3.00 | 9 | 9 | 0 | 0 | 0 | 0 | 0 | 54.0 | 42 | 21 | 18 | 2 | 15 | 42 | 0 | 0 | 0 | 1.06 | 7.00 | 0.33 | 2.50 | 7.00 | 3.50 | 2.80 |
| 1987 | Houston Astros | NL | MLB | HOU | 38 | 26 | 0 | 4 | 5.40 | 6 | 3 | 0 | 0 | 3 | 2 | 0 | 21.2 | 25 | 15 | 13 | 1 | 5 | 12 | 1 | 1 | 1 | 1.38 | 10.38 | 0.42 | 2.08 | 4.98 | 6.23 | 2.40 |
| 1988 | Tucson Toros | PCL | AAA | HOU | - | 27 | 10 | 9 | 4.24 | 31 | 30 | 1 | 1 | 1 | 1 | 0 | 184.2 | 210 | 99 | 87 | 9 | 44 | 122 | 6 | 0 | 2 | 1.38 | 10.23 | 0.44 | 2.14 | 5.95 | 4.82 | 2.77 |
| 1989 | Tidewater Tides | IL | AAA | NYN | - | 28 | 2 | 2 | 1.69 | 7 | 6 | 2 | 1 | 1 | 0 | 0 | 42.2 | 32 | 11 | 8 | 0 | 7 | 30 | 1 | 0 | 0 | 0.91 | 6.75 | 0.00 | 1.48 | 6.33 | 2.32 | 4.29 |
| 1989 | Portland Beavers | PCL | AAA | MIN | - | 28 | 9 | 8 | 3.91 | 24 | 19 | 2 | 0 | 5 | 3 | 0 | 140.1 | 124 | 71 | 61 | 13 | 38 | 83 | 0 | 0 | 2 | 1.15 | 7.95 | 0.83 | 2.44 | 5.32 | 4.55 | 2.18 |
| 1989 | New York Mets | NL | MLB | NYN | 36 | 28 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 9.00 | 0.00 | 0.00 |
| 1990 | Jackson Mets | Tex | AA | NYN | - | 29 | 1 | 0 | 3.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 6.0 | 6 | 2 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 1.17 | 9.00 | 0.00 | 1.50 | 1.50 | 3.00 | 1.00 |
| 1990 | Tidewater Tides | IL | AAA | NYN | - | 29 | 12 | 11 | 3.79 | 27 | 27 | 6 | 2 | 0 | 0 | 0 | 173.1 | 170 | 79 | 73 | 10 | 54 | 157 | 9 | 0 | 1 | 1.29 | 8.83 | 0.52 | 2.80 | 8.15 | 4.10 | 2.91 |
| 1991 | Tidewater Tides | IL | AAA | NYN | - | 30 | 1 | 2 | 8.03 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 12.1 | 17 | 11 | 11 | 0 | 8 | 4 | 0 | 0 | 0 | 2.03 | 12.41 | 0.00 | 5.84 | 2.92 | 8.03 | 0.50 |
| 1991 | Denver Zephyrs | Amer | AAA | MIL | - | 30 | 1 | 1 | 0.54 | 5 | 0 | 0 | 0 | 5 | 3 | 1 | 16.2 | 14 | 3 | 1 | 0 | 4 | 8 | 2 | 0 | 0 | 1.08 | 7.56 | 0.00 | 2.16 | 4.32 | 1.62 | 2.00 |
| Tot: | MLB (3 yrs) | MLB | 2 | 7 | 4.47 | 16 | 7 | 0 | 0 | 3 | 9 | 0 | 50.1 | 58 | 30 | 25 | 3 | 17 | 22 | 2 | 1 | 1 | 1.49 | 10.37 | 0.54 | 3.04 | 3.93 | 5.36 | 1.29 | ||||
| Tot: | NL (3 yrs) | NL | 2 | 7 | 4.47 | 16 | 7 | 0 | 0 | 3 | 9 | 0 | 50.1 | 58 | 30 | 25 | 3 | 17 | 22 | 2 | 1 | 1 | 1.49 | 10.37 | 0.54 | 3.04 | 3.93 | 5.36 | 1.29 | ||||
| Tot: | Minors (13 yrs) | Minors | 83 | 68 | 3.93 | 240 | 205 | 22 | 4 | 14 | 35 | 2 | 1299.0 | 1291 | 675 | 567 | 70 | 411 | 894 | 51 | 0 | 29 | 1.31 | 8.94 | 0.48 | 2.85 | 6.19 | 4.68 | 2.18 | ||||
| Tot: | Rk (2 yrs) | Rk | 7 | 2 | 2.96 | 20 | 11 | 0 | 0 | 0 | 9 | 0 | 76.0 | 82 | 32 | 25 | 2 | 25 | 47 | 4 | 0 | 2 | 1.41 | 9.71 | 0.24 | 2.96 | 5.57 | 3.79 | 1.88 | ||||
| Tot: | A+ (3 yrs) | A+ | 22 | 14 | 3.82 | 52 | 46 | 6 | 0 | 0 | 6 | 0 | 280.2 | 267 | 152 | 119 | 13 | 113 | 184 | 13 | 0 | 16 | 1.35 | 8.56 | 0.42 | 3.62 | 5.90 | 4.87 | 1.63 | ||||
| Tot: | AA (1 yrs) | AA | 1 | 0 | 3.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 6.0 | 6 | 2 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 1.17 | 9.00 | 0.00 | 1.50 | 1.50 | 3.00 | 1.00 | ||||
| Tot: | AAA (8 yrs) | AAA | 53 | 52 | 4.05 | 167 | 147 | 16 | 4 | 14 | 20 | 2 | 936.1 | 936 | 489 | 421 | 55 | 272 | 662 | 34 | 0 | 11 | 1.29 | 9.00 | 0.53 | 2.61 | 6.36 | 4.70 | 2.43 | ||||
| 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 |
| 1984 | Tucson Toros | PCL | AAA | HOU | - | 23 | P | 29 | 26 | 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 14 | 0 | 3 | 0 | 0 | 0 | 4 | 30 | 1 | 2 | .115 | .148 | .154 | .302 | .077 | .039 | .250 | 3.33 | 46.67 | 14.00 | 0.00 | |
| 1985 | Tucson Toros | PCL | AAA | HOU | - | 24 | P | 11 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 66.67 | 0.00 | 0.00 | |
| 1986 | Tucson Toros | PCL | AAA | HOU | - | 25 | P | 22 | 21 | 3 | 4 | 1 | 1 | 0 | 3 | 0 | 0 | 2 | 12 | 0 | 3 | 0 | 0 | 0 | 7 | 26 | 2 | 2 | .190 | .261 | .333 | .594 | .238 | .143 | .444 | 7.69 | 46.15 | 6.00 | 0.00 | |
| 1986 | Houston Astros | NL | MLB | HOU | 38 | 25 | P | 9 | 6 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 28.57 | 0.00 | 0.00 | |
| 1987 | Tucson Toros | PCL | AAA | HOU | - | 26 | P | 9 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 7 | 0 | 2 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | .000 | .200 | .000 | .200 | .250 | .000 | .000 | 16.67 | 58.33 | 3.50 | 0.00 | |
| 1987 | Houston Astros | NL | MLB | HOU | 38 | 26 | P | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 60.00 | 0.00 | 0.00 | |
| 1988 | Tucson Toros | PCL | AAA | HOU | - | 27 | P | 31 | 17 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 1 | 0 | 0 | 0 | 2 | 18 | 0 | 2 | .118 | .118 | .118 | .236 | .000 | .000 | .182 | 0.00 | 33.33 | 0.00 | 0.00 | |
| 1989 | Tidewater Tides | IL | AAA | NYN | - | 28 | P | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 71.43 | 0.00 | 0.00 | |
| 1990 | Jackson Mets | Tex | AA | NYN | - | 29 | 2B | 1 | 3 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 1 | .333 | .333 | .333 | .666 | .000 | .000 | .500 | 0.00 | 33.33 | 0.00 | 0.00 | |
| 1990 | Tidewater Tides | IL | AAA | NYN | - | 29 | P | 27 | 19 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 1 | 0 | 0 | 0 | 2 | 20 | 0 | 2 | .105 | .105 | .105 | .210 | .000 | .000 | .154 | 0.00 | 30.00 | 0.00 | 0.00 | |
| Tot: | MLB (2 yrs) | MLB | 15 | 11 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 41.67 | ||||||||
| Tot: | NL (2 yrs) | NL | 15 | 11 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 41.67 | ||||||||
| Tot: | Minors (7 yrs) | Minors | 137 | 107 | 9 | 12 | 2 | 1 | 0 | 5 | 0 | 0 | 5 | 55 | 0 | 10 | 0 | 0 | 0 | 16 | 122 | 3 | 9 | .112 | .152 | .150 | .301 | .084 | .037 | .231 | 4.10 | 45.08 | 11.00 | |||||||
| Tot: | AA (1 yrs) | AA | 1 | 3 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 1 | .333 | .333 | .333 | .667 | .000 | .000 | .500 | 0.00 | 33.33 | ||||||||
| Tot: | AAA (7 yrs) | AAA | 136 | 104 | 8 | 11 | 2 | 1 | 0 | 3 | 0 | 0 | 5 | 54 | 0 | 10 | 0 | 0 | 0 | 15 | 119 | 3 | 8 | .106 | .147 | .144 | .291 | .087 | .038 | .220 | 4.20 | 45.38 | 10.80 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 40 | 75 | 45 | 68 | 45 | 54 | .526 |