| 1983 | Quad Cities | Midw | A | 21 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 7 | 0 |
| | Midland | Tex | AA | 21 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 3 | 0 |
| 1984 | Lodi | Calif | A+ | 22 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .937 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 9 | 1 |
| | Midland | Tex | AA | 22 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .937 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 7 | 8 | 1 |
| 1985 | Pittsfield | East | AA | 23 | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .917 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 17 | 2 |
| 1986 | Pittsfield | East | AA | 24 | 38 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .933 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 12 | 1 |
| 1987 | Iowa | Amer | AAA | 25 | 53 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .955 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9 | 12 | 1 |
| 1988 | Iowa | Amer | AAA | 26 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .824 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 9 | 3 |
| | Chi Cubs | NL | MLB | 26 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .875 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 4 | 3 | 1 |
| 1989 | Iowa | Amer | AAA | 27 | 64 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .840 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 7 | 14 | 4 |
| 1990 | Denver | Amer | AAA | 28 | 41 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .958 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 18 | 1 |
| | Milwaukee | AL | MLB | 28 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 0 | 0 |
| 1991 | Tucson | PCL | AAA | 29 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .867 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 8 | 2 |
| | Houston | NL | MLB | 29 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 4 | 0 |
| 1992 | Tucson | PCL | AAA | 30 | 58 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .900 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 13 | 2 |
| 1993 | Tucson | PCL | AAA | 31 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .889 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 6 | 1 |
Minor League Totals | 421 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .911 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 59 | 136 | 19 |