| 1986 | Peninsula | Caro | A+ | 20 | 0 | 52 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .977 | -- | -- | -- | -- | -- | -- | -- | -- | 225 | 26 | 6 |
| 1987 | Daytona | FSL | A+ | 21 | 0 | 39 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | -- | .982 | .964 | -- | -- | -- | -- | -- | -- | .800 | 227 | 28 | 6 |
| 1988 | Birmingham | Sou | AA | 22 | 0 | 111 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .980 | 1.000 | -- | -- | -- | -- | -- | -- | -- | 640 | 60 | 14 |
| 1989 | Birmingham | Sou | AA | 23 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .994 | -- | -- | -- | -- | -- | -- | -- | -- | 149 | 10 | 1 |
| | Vancouver | PCL | AAA | 23 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .952 | -- | -- | -- | -- | -- | -- | -- | -- | 19 | 1 | 1 |
| | Chi White Sox | AL | MLB | 23 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | -- | .973 | -- | -- | -- | -- | -- | -- | -- | -- | 100 | 10 | 3 |
| 1990 | Birmingham | Sou | AA | 24 | 0 | 85 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .965 | .950 | -- | -- | -- | -- | -- | -- | -- | 561 | 51 | 24 |
| 1991 | Birmingham | Sou | AA | 25 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .966 | -- | -- | -- | -- | -- | -- | -- | -- | 25 | 3 | 1 |
| | Chi White Sox | AL | MLB | 25 | 0 | 27 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | -- | .989 | .989 | -- | -- | -- | -- | -- | -- | -- | 159 | 14 | 2 |
| 1992 | Vancouver | PCL | AAA | 26 | 0 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .959 | 1.000 | -- | -- | -- | -- | -- | -- | -- | 54 | 4 | 2 |
| | Chi White Sox | AL | MLB | 26 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | -- | .971 | -- | -- | -- | -- | -- | -- | -- | -- | 64 | 3 | 2 |
| 1993 | Nashville | Amer | AAA | 27 | 0 | 83 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .985 | .889 | -- | -- | -- | -- | -- | -- | -- | 435 | 40 | 8 |
| | Chi White Sox | AL | MLB | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | | | |
| 1994 | Charlotte | IL | AAA | 28 | 0 | 64 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .978 | -- | -- | -- | -- | -- | -- | -- | -- | 405 | 38 | 10 |
| | Cleveland | AL | MLB | 28 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .957 | -- | -- | -- | -- | -- | -- | -- | -- | 22 | 0 | 1 |
| 1995 | Minnesota | AL | MLB | 29 | 0 | 46 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | -- | .987 | 1.000 | -- | -- | -- | -- | -- | -- | -- | 215 | 13 | 3 |
| 1996 | Lake Elsinore | Calif | A+ | 30 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .973 | -- | -- | -- | -- | -- | -- | -- | -- | 63 | 8 | 2 |
| | Iowa | Amer | AAA | 30 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 0 | 0 |
Minor League Totals | 0 | 484 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | -- | .978 | .953 | -- | -- | -- | -- | -- | -- | .800 | 2806 | 269 | 75 |