| 1984 | Bend | Nwst | A- | 21 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .722 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 11 | 5 |
| 1985 | Clearwater | FSL | A+ | 22 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .950 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 7 | 12 | 1 |
| | Reading | East | AA | 22 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .923 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 4 | 8 | 1 |
| 1986 | Reading | East | AA | 23 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 12 | 14 | 0 |
| | Philadelphia | NL | MLB | 23 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 1 | 0 |
| 1987 | Reading | East | AA | 24 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 5 | 0 |
| | Maine | IL | AAA | 24 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .875 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 4 | 1 |
| 1988 | Maine | IL | AAA | 25 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 13 | 0 |
| | Philadelphia | NL | MLB | 25 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 9 | 0 |
| 1989 | Scranton/WB | IL | AAA | 26 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 5 | 0 |
| | Philadelphia | NL | MLB | 26 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 0 | 0 |
| 1990 | Scranton/WB/Richmond | IL | AAA | 27 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 8 | 6 | 0 |
| | Atlanta | NL | MLB | 27 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .667 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 2 | 1 |
| | Philadelphia | NL | MLB | 27 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 4 | 0 |
| 1991 | Atlanta | NL | MLB | 28 | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 4 | 0 |
| 1992 | Atlanta | NL | MLB | 29 | 58 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .818 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 4 | 5 | 2 |
| 1993 | Richmond | IL | AAA | 30 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 0 | 0 |
| | Atlanta | NL | MLB | 30 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 0 | 0 |
| 1994 | Colorado | NL | MLB | 31 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 8 | 20 | 0 |
| 1995 | Colorado | NL | MLB | 32 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .870 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9 | 11 | 3 |
| 1996 | Colorado | NL | MLB | 33 | 26 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .935 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 26 | 2 |
| | Chi White Sox | AL | MLB | 33 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 0 | 0 |
Minor League Totals | 125 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .938 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 43 | 78 | 8 |