| 1983 | Medicine Hat | Pio | Rk | 18 | 0 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .959 | -- | -- | -- | -- | -- | -- | -- | -- | 215 | 19 | 10 |
| 1984 | Florence | SAL | A | 19 | 0 | 67 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .972 | -- | -- | -- | -- | -- | -- | -- | -- | 383 | 36 | 12 |
| 1985 | Florence | SAL | A | 20 | 0 | 58 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .962 | -- | -- | -- | -- | -- | -- | -- | -- | 392 | 36 | 17 |
| | Knoxville | Sou | AA | 20 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .959 | -- | -- | -- | -- | -- | -- | -- | -- | 85 | 8 | 4 |
| 1986 | Knoxville | Sou | AA | 21 | 0 | 118 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .979 | -- | -- | -- | -- | -- | -- | -- | -- | 665 | 73 | 16 |
| 1987 | Knoxville | Sou | AA | 22 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | 18 | 3 | 0 |
| | Toronto | AL | MLB | 22 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | 25 | 1 | 0 |
| 1988 | Knoxville | Sou | AA | 23 | 0 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .989 | -- | -- | -- | -- | -- | -- | -- | -- | 78 | 9 | 1 |
| 1990 | Birmingham | Sou | AA | 25 | 0 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 1.000 | 1.000 | -- | -- | -- | -- | -- | -- | -- | 6 | 0 | 0 |
| | Chi White Sox | AL | MLB | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | | | |
| 1991 | Vancouver | PCL | AAA | 26 | 0 | 0 | 60 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .988 | -- | -- | -- | -- | -- | -- | -- | 461 | 28 | 6 |
| 1992 | Midland | Tex | AA | 27 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .964 | -- | -- | -- | -- | -- | -- | -- | -- | 50 | 4 | 2 |
Minor League Totals | 0 | 324 | 61 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .971 | .988 | -- | -- | -- | -- | -- | -- | -- | 2353 | 216 | 68 |