| 1987 | Fayetteville | SAL | A | 21 | 0 | 0 | 0 | 7 | 49 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .970 | .871 | -- | -- | -- | -- | -- | 41 | 133 | 22 |
| | Lakeland | FSL | A+ | 21 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | .953 | -- | -- | -- | -- | -- | 11 | 30 | 2 |
| 1988 | Glens Falls | East | AA | 22 | 0 | 0 | 0 | 5 | 77 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | 1.000 | .914 | -- | -- | -- | -- | -- | 63 | 173 | 21 |
| | Toledo | IL | AAA | 22 | 0 | 0 | 0 | 52 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .981 | 1.000 | -- | -- | -- | -- | -- | 120 | 149 | 5 |
| | Detroit | AL | MLB | 22 | 0 | 0 | 0 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | 1.000 | 1.000 | -- | -- | -- | -- | -- | 12 | 19 | 0 |
| 1989 | Toledo | IL | AAA | 23 | 0 | 0 | 9 | 48 | 52 | 12 | 0 | 0 | 0 | 0 | 0 | -- | -- | .973 | .965 | .942 | .952 | -- | -- | -- | -- | 217 | 257 | 20 |
| | Detroit | AL | MLB | 23 | 0 | 0 | 18 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | 1.000 | -- | .963 | -- | -- | -- | -- | -- | 134 | 24 | 1 |
| 1990 | Toledo | IL | AAA | 24 | 0 | 0 | 6 | 117 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .974 | .979 | .896 | -- | -- | -- | -- | -- | 280 | 352 | 18 |
| 1991 | Columbus | IL | AAA | 25 | 0 | 0 | 28 | 15 | 60 | 0 | 0 | 0 | 0 | 2 | 0 | -- | -- | .991 | .968 | .926 | -- | -- | -- | -- | 1.000 | 277 | 164 | 16 |
| | NY Yankees | AL | MLB | 25 | 0 | 0 | 0 | 0 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | .940 | -- | -- | -- | -- | -- | 14 | 33 | 3 |
| 1992 | Columbus | IL | AAA | 26 | 0 | 0 | 12 | 56 | 21 | 0 | 0 | 0 | 0 | 1 | 0 | -- | -- | .989 | .981 | .959 | -- | -- | -- | -- | 1.000 | 187 | 206 | 8 |
| 1993 | California | AL | MLB | 27 | 0 | 0 | 1 | 91 | 14 | 9 | 0 | 0 | 0 | 2 | 0 | -- | -- | -- | .981 | .929 | 1.000 | -- | -- | -- | 1.000 | 208 | 249 | 11 |
| 1994 | Calgary | PCL | AAA | 28 | 0 | 0 | 0 | 16 | 14 | 27 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .987 | .977 | .949 | -- | -- | -- | -- | 85 | 165 | 9 |
| | Seattle | AL | MLB | 28 | 0 | 0 | 0 | 20 | 5 | 0 | 0 | 0 | 0 | 0 | 2 | -- | -- | -- | 1.000 | .900 | -- | -- | -- | -- | -- | 19 | 49 | 1 |
| 1995 | Buffalo | Amer | AAA | 29 | 0 | 0 | 11 | 69 | 58 | 2 | 0 | 0 | 0 | 0 | 0 | -- | -- | .974 | .984 | .930 | 1.000 | -- | -- | -- | -- | 235 | 303 | 18 |
| 1996 | Edmonton | PCL | AAA | 30 | 0 | 0 | 13 | 8 | 3 | 0 | 0 | 0 | 0 | 2 | 0 | -- | -- | .991 | .970 | 1.000 | -- | -- | -- | -- | .667 | 112 | 39 | 3 |
| | Oakland | AL | MLB | 30 | 0 | 0 | 42 | 2 | 11 | 1 | 1 | 0 | 0 | 0 | 4 | -- | -- | 1.000 | 1.000 | .952 | -- | 1.000 | -- | -- | -- | 134 | 21 | 1 |
| 1997 | Ottawa | IL | AAA | 31 | 0 | 0 | 0 | 14 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | 1.000 | 1.000 | -- | -- | -- | -- | -- | 31 | 42 | 0 |
| | Buffalo | Amer | AAA | 31 | 0 | 0 | 3 | 28 | 66 | 1 | 0 | 0 | 0 | 0 | 0 | -- | -- | 1.000 | .967 | .958 | 1.000 | -- | -- | -- | -- | 115 | 203 | 12 |
| 1998 | Buffalo | IL | AAA | 32 | 0 | 0 | 9 | 14 | 74 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | 1.000 | .959 | .895 | -- | -- | -- | -- | -- | 114 | 168 | 23 |
| | Cleveland | AL | MLB | 32 | 0 | 0 | 0 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .947 | 1.000 | -- | -- | -- | -- | -- | 4 | 15 | 1 |
| 1999 | Scranton/WB | IL | AAA | 33 | 0 | 0 | 5 | 132 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .929 | .982 | 1.000 | -- | -- | -- | -- | -- | 288 | 398 | 14 |
| | Philadelphia | NL | MLB | 33 | 0 | 0 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | 1.000 | 1.000 | -- | -- | -- | -- | -- | -- | 36 | 13 | 0 |
Minor League Totals | 0 | 0 | 96 | 581 | 520 | 42 | 0 | 0 | 0 | 5 | 0 | -- | -- | .984 | .979 | .924 | .952 | -- | -- | -- | .800 | 2176 | 2782 | 191 |