| 1985 | Helena | Pio | Rk | 19 | 0 | 0 | 0 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | .976 | -- | -- | -- | -- | -- | 9 | 32 | 1 |
| 1986 | Tri-City | Nwst | A- | 20 | 0 | 0 | 38 | 0 | 33 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .986 | -- | .882 | -- | -- | -- | -- | -- | 352 | 101 | 18 |
| 1987 | Beloit | Midw | A | 21 | 0 | 0 | 58 | 0 | 68 | 1 | 0 | 0 | 0 | 0 | 0 | -- | -- | .991 | -- | .910 | 1.000 | -- | -- | -- | -- | 493 | 113 | 18 |
| 1988 | Stockton | Calif | A+ | 22 | 0 | 0 | 96 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .994 | -- | -- | -- | -- | -- | -- | -- | 793 | 60 | 5 |
| 1989 | Stockton | Calif | A+ | 23 | 0 | 0 | 126 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .993 | -- | 1.000 | -- | -- | -- | -- | -- | 1081 | 62 | 8 |
| 1991 | El Paso | Tex | AA | 25 | 0 | 0 | 109 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .992 | -- | .818 | -- | -- | -- | -- | -- | 883 | 87 | 10 |
| 1992 | Denver | Amer | AAA | 26 | 0 | 0 | 75 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | -- | -- | .990 | -- | -- | -- | -- | -- | -- | 1.000 | 654 | 50 | 7 |
| | Milwaukee | AL | MLB | 26 | 0 | 0 | 38 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8 | -- | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | 286 | 22 | 0 |
| 1993 | Milwaukee | AL | MLB | 27 | 0 | 0 | 150 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .992 | 1.000 | -- | -- | -- | -- | -- | -- | 1187 | 128 | 10 |
| 1994 | New Orleans | Amer | AAA | 28 | 0 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .993 | -- | -- | -- | -- | -- | -- | -- | 122 | 14 | 1 |
| | Milwaukee | AL | MLB | 28 | 0 | 0 | 73 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | -- | -- | .989 | -- | -- | -- | -- | -- | -- | -- | 660 | 47 | 8 |
| 1995 | New Orleans | Amer | AAA | 29 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | 9 | 2 | 0 |
| | Milwaukee | AL | MLB | 29 | 0 | 0 | 81 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | -- | -- | .997 | -- | -- | -- | -- | -- | -- | -- | 649 | 60 | 2 |
| 1996 | Milwaukee | AL | MLB | 30 | 0 | 0 | 85 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 63 | -- | -- | .992 | -- | -- | -- | -- | -- | -- | -- | 676 | 58 | 6 |
| 1997 | Milwaukee | AL | MLB | 31 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | -- | -- | .992 | -- | -- | -- | -- | -- | -- | -- | 220 | 14 | 2 |
| 1998 | Milwaukee | NL | MLB | 32 | 0 | 0 | 57 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | -- | -- | .994 | -- | -- | -- | -- | -- | -- | -- | 441 | 23 | 3 |
| 1999 | Oakland | AL | MLB | 33 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 130 | -- | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | 42 | 4 | 0 |
| 2000 | Oakland | AL | MLB | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | | | |
| 2001 | Oakland | AL | MLB | 35 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | | | |
Minor League Totals | 0 | 0 | 516 | 0 | 130 | 1 | 0 | 0 | 0 | 1 | 0 | -- | -- | .992 | -- | .906 | 1.000 | -- | -- | -- | 1.000 | 4396 | 521 | 68 |