| 1989 | Eugene | Nwst | A- | 22 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 5 | 0 |
| 1990 | Appleton | Midw | A | 23 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .870 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 20 | 3 |
| 1991 | Baseball City | FSL | A+ | 24 | 38 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .900 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 13 | 2 |
| 1992 | Memphis | Sou | AA | 25 | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .946 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9 | 26 | 2 |
| 1993 | Memphis | Sou | AA | 26 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 3 | 0 |
| 1994 | Birmingham | Sou | AA | 27 | 39 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 9 | 0 |
| | Nashville | Amer | AAA | 27 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 7 | 0 |
| 1995 | Nashville | Amer | AAA | 28 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .833 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 4 | 6 | 2 |
| | Chi White Sox | AL | MLB | 28 | 31 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 3 | 0 |
| 1996 | Nashville | Amer | AAA | 29 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 0 | 0 |
| | Chi White Sox | AL | MLB | 29 | 50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .778 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 4 | 3 | 2 |
| 1997 | Nashville | Amer | AAA | 30 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 2 | 0 |
| | Chi White Sox | AL | MLB | 30 | 52 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 6 | 0 |
| 1998 | Chi Cubs | NL | MLB | 31 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 5 | 0 |
| | Chi White Sox | AL | MLB | 31 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 6 | 0 |
| 1999 | Iowa | PCL | AAA | 32 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 0 | 0 |
| | Chi Cubs | NL | MLB | 32 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 1 | 0 |
| 2000 | Iowa | PCL | AAA | 33 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 6 | 0 |
| | Chi Cubs | NL | MLB | 33 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 3 | 0 |
Minor League Totals | 235 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .936 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 35 | 97 | 9 |