| 1987 | Pocatello | Pio | Rk | 21 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .714 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 5 | 2 |
| | Fresno | Calif | A+ | 21 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 5 | 0 |
| 1988 | San Jose | Calif | A+ | 22 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .947 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 12 | 1 |
| 1989 | San Jose | Calif | A+ | 23 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 17 | 0 |
| | Shreveport | Tex | AA | 23 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 5 | 0 |
| 1990 | Shreveport | Tex | AA | 24 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .955 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 15 | 1 |
| | Phoenix | PCL | AAA | 24 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .937 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 7 | 8 | 1 |
| 1991 | Shreveport | Tex | AA | 25 | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .960 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 18 | 1 |
| 1992 | Arkansas | Tex | AA | 26 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .971 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9 | 24 | 1 |
| 1993 | Louisville | Amer | AAA | 27 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .957 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 8 | 14 | 1 |
| 1994 | Colorado Springs | PCL | AAA | 28 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 15 | 0 |
| 1995 | Orlando | Sou | AA | 29 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .882 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 12 | 2 |
| | Iowa | Amer | AAA | 29 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 3 | 0 |