| 1980 | Bellingham | Nwst | A- | 18 | 0 | 0 | 0 | 0 | 0 | 45 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .859 | -- | -- | -- | -- | 64 | 125 | 31 |
| 1981 | Wausau | Midw | A | 19 | 0 | 0 | 0 | 0 | 0 | 111 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .904 | -- | -- | -- | -- | 154 | 335 | 52 |
| 1982 | Bakersfield | Calif | A+ | 20 | 0 | 0 | 0 | 0 | 0 | 136 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .895 | -- | -- | -- | -- | 200 | 419 | 73 |
| 1983 | Chattanooga | Sou | AA | 21 | 0 | 0 | 0 | 0 | 0 | 72 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .924 | -- | -- | -- | -- | 131 | 232 | 30 |
| | Salt Lake | PCL | AAA | 21 | 0 | 0 | 0 | 0 | 0 | 61 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .917 | -- | -- | -- | -- | 100 | 178 | 25 |
| | Seattle | AL | MLB | 21 | 0 | 0 | 0 | 0 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | .941 | -- | -- | -- | -- | -- | 17 | 47 | 4 |
| 1984 | Salt Lake | PCL | AAA | 22 | 0 | 0 | 0 | 0 | 67 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | .929 | -- | -- | -- | -- | -- | 45 | 164 | 16 |
| | Seattle | AL | MLB | 22 | 0 | 0 | 0 | 0 | 42 | 0 | 0 | 0 | 0 | 3 | 3 | -- | -- | -- | -- | .918 | -- | -- | -- | -- | 1.000 | 31 | 63 | 8 |
| 1985 | Calgary | PCL | AAA | 23 | 0 | 0 | 0 | 0 | 24 | 4 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | .914 | 1.000 | -- | -- | -- | -- | 16 | 49 | 5 |
| | Seattle | AL | MLB | 23 | 0 | 0 | 0 | 0 | 7 | 15 | 0 | 0 | 0 | 2 | 2 | -- | -- | -- | -- | .900 | .918 | -- | -- | -- | 1.000 | 25 | 44 | 6 |
| 1986 | Detroit | AL | MLB | 24 | 0 | 0 | 0 | 0 | 133 | 2 | 0 | 0 | 0 | 2 | 7 | -- | -- | -- | -- | .938 | 1.000 | -- | -- | -- | 1.000 | 111 | 242 | 23 |
| 1987 | Toledo | IL | AAA | 25 | 0 | 0 | 0 | 0 | 8 | 1 | 0 | 0 | 0 | 2 | 0 | -- | -- | -- | -- | 1.000 | .667 | -- | -- | -- | 1.000 | 7 | 8 | 1 |
| | Pittsburgh | NL | MLB | 25 | 0 | 0 | 1 | 0 | 10 | 0 | 0 | 0 | 0 | 26 | 0 | -- | -- | 1.000 | -- | .903 | -- | -- | -- | -- | 1.000 | 39 | 20 | 3 |
| | Detroit | AL | MLB | 25 | 0 | 0 | 9 | 0 | 36 | 1 | 0 | 0 | 0 | 8 | 3 | -- | -- | 1.000 | -- | .847 | 1.000 | -- | -- | -- | 1.000 | 84 | 67 | 17 |
| 1988 | Pittsburgh | NL | MLB | 26 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 55 | 0 | -- | -- | .667 | -- | -- | -- | -- | -- | -- | .990 | 100 | 0 | 2 |
| | Seattle | AL | MLB | 26 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 47 | 7 | -- | -- | -- | -- | -- | -- | -- | -- | -- | .986 | 66 | 3 | 1 |
| 1989 | Seattle | AL | MLB | 27 | 0 | 0 | 18 | 0 | 26 | 0 | 0 | 0 | 0 | 89 | 12 | -- | -- | .977 | -- | .949 | -- | -- | -- | -- | .975 | 317 | 76 | 12 |
| 1990 | Seattle | AL | MLB | 28 | 0 | 0 | 4 | 0 | 6 | 0 | 0 | 0 | 0 | 20 | 1 | -- | -- | .955 | -- | .815 | -- | -- | -- | -- | .970 | 52 | 23 | 7 |
| | Detroit | AL | MLB | 28 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 11 | 30 | -- | -- | -- | -- | .926 | -- | -- | -- | -- | 1.000 | 17 | 19 | 2 |
| 1991 | Phoenix | PCL | AAA | 29 | 0 | 0 | 4 | 0 | 55 | 0 | 0 | 0 | 0 | 26 | 0 | -- | -- | .926 | -- | .920 | -- | -- | -- | -- | .971 | 102 | 118 | 17 |
| | SF Giants | NL | MLB | 29 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | -- | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | 4 | 0 | 0 |
| 1992 | Nashville | Amer | AAA | 30 | 0 | 0 | 6 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | .983 | -- | .922 | -- | -- | -- | -- | -- | 69 | 35 | 5 |
| | Cincinnati | NL | MLB | 30 | 0 | 0 | 20 | 0 | 23 | 0 | 0 | 0 | 0 | 5 | 0 | -- | -- | 1.000 | -- | 1.000 | -- | -- | -- | -- | 1.000 | 161 | 42 | 0 |
| 1993 | Toronto | AL | MLB | 31 | 0 | 0 | 1 | 0 | 16 | 0 | 0 | 0 | 0 | 44 | 1 | -- | -- | 1.000 | -- | .882 | -- | -- | -- | -- | .957 | 77 | 20 | 7 |
| 1994 | Toronto | AL | MLB | 32 | 0 | 0 | 10 | 0 | 7 | 0 | 0 | 0 | 0 | 29 | 1 | -- | -- | .962 | -- | .923 | -- | -- | -- | -- | .980 | 103 | 9 | 4 |
| 1995 | St. Louis | NL | MLB | 33 | 0 | 0 | 18 | 0 | 22 | 0 | 0 | 0 | 0 | 1 | 0 | -- | -- | .992 | -- | .951 | -- | -- | -- | -- | 1.000 | 136 | 33 | 3 |
| 1997 | Colorado | NL | MLB | 35 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | 1.000 | -- | -- | -- | -- | -- | 0 | 3 | 0 |
Minor League Totals | 0 | 0 | 10 | 0 | 171 | 430 | 0 | 0 | 0 | 28 | 0 | -- | -- | .965 | -- | .925 | .902 | -- | -- | -- | .973 | 888 | 1663 | 255 |