| 1980 | Savannah | Sou | AA | 20 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .960 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 7 | 17 | 1 |
| 1981 | Savannah | Sou | AA | 21 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .912 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 16 | 46 | 6 |
| 1982 | Richmond | IL | AAA | 22 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .938 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 26 | 35 | 4 |
| 1983 | Atlanta | NL | MLB | 23 | 36 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .957 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 15 | 51 | 3 |
| 1984 | Atlanta | NL | MLB | 24 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .983 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 10 | 48 | 1 |
| 1985 | Richmond | IL | AAA | 25 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9 | 33 | 0 |
| | Atlanta | NL | MLB | 25 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .875 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 12 | 2 |
| 1986 | Greenville | Sou | AA | 26 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 4 | 0 |
| | Atlanta | NL | MLB | 26 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 11 | 0 |
| 1987 | Knoxville | Sou | AA | 27 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .800 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 4 | 8 | 3 |
| | Syracuse | IL | AAA | 27 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 8 | 0 |
| 1988 | Oklahoma City | Amer | AAA | 28 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .778 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 6 | 2 |
| | Texas | AL | MLB | 28 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .900 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 8 | 10 | 2 |
| 1989 | GCL Rangers | GCL | Rk | 29 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 2 | 0 |
| | Oklahoma City | Amer | AAA | 29 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 2 | 0 |
| | Texas | AL | MLB | 29 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .857 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 5 | 1 |
| 1990 | Oklahoma City | Amer | AAA | 30 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 4 | 0 |
| | Texas | AL | MLB | 30 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 8 | 0 |
| 1991 | Phoenix | PCL | AAA | 31 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .842 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 12 | 20 | 6 |
| 1992 | Phoenix | PCL | AAA | 32 | 40 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .968 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 11 | 19 | 1 |
| 1993 | Buffalo | Amer | AAA | 33 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .929 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 20 | 2 |
| 1994 | Tucson | PCL | AAA | 34 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .949 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9 | 28 | 2 |
| 1995 | Tucson | PCL | AAA | 35 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .937 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 10 | 1 |
| | Houston | NL | MLB | 35 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 3 | 0 |
Minor League Totals | 273 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .930 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 111 | 262 | 28 |