| 1979 | Waterloo | Midw | A | 22 | 0 | 0 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | -- | -- | .977 | -- | -- | -- | -- | -- | -- | .900 | 244 | 15 | 7 |
| 1980 | Chattanooga | Sou | AA | 23 | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 48 | 0 | -- | -- | 1.000 | -- | -- | -- | -- | -- | -- | 1.000 | 124 | 7 | 0 |
| 1981 | San Jose | Calif | A+ | 24 | 0 | 0 | 40 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | -- | -- | .974 | -- | -- | -- | -- | -- | -- | 1.000 | 319 | 22 | 9 |
| | West Haven | East | AA | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | .944 | 34 | 0 | 2 |
| 1982 | Modesto | Calif | A+ | 25 | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 46 | 0 | -- | -- | .991 | -- | -- | -- | -- | -- | -- | 1.000 | 168 | 11 | 1 |
| 1983 | Tacoma | PCL | AAA | 26 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 31 | 0 | -- | -- | .994 | -- | -- | -- | -- | -- | -- | .941 | 194 | 12 | 4 |
| | Oakland | AL | MLB | 26 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | -- | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | 4 | 0 | 0 |
| 1984 | Albany/Colonie | East | AA | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | .952 | 39 | 1 | 2 |
| | Tacoma | PCL | AAA | 27 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | -- | -- | .964 | -- | -- | -- | -- | -- | -- | .979 | 72 | 2 | 2 |
Minor League Totals | 0 | 0 | 118 | 0 | 0 | 0 | 0 | 0 | 0 | 201 | 0 | -- | -- | .981 | -- | -- | -- | -- | -- | -- | .973 | 1194 | 70 | 27 |