| 1988 | Pulaski | App | Rk | 21 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 13 | 21 | 0 |
| 1989 | Burlington | Midw | A | 22 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .898 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 22 | 22 | 5 |
| | Durham | Caro | A+ | 22 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .714 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 4 | 2 |
| | Greenville | Sou | AA | 22 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 1 | 0 |
| 1990 | Durham | Caro | A+ | 23 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .800 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 3 | 2 |
| | Greenville | Sou | AA | 23 | 36 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .952 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 17 | 1 |
| 1991 | Greenville | Sou | AA | 24 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .939 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 13 | 18 | 2 |
| | Richmond | IL | AAA | 24 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .875 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 6 | 1 |
| 1992 | Iowa | Amer | AAA | 25 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 7 | 0 |
| 1993 | Iowa | Amer | AAA | 26 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .933 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 10 | 18 | 2 |
| | Chi Cubs | NL | MLB | 26 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 7 | 1 | 0 |
| 1994 | Iowa | Amer | AAA | 27 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .923 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 23 | 25 | 4 |
| | Chi Cubs | NL | MLB | 27 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 3 | 0 |
| 1995 | Daytona | FSL | A+ | 28 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 3 | 0 |
| | Orlando | Sou | AA | 28 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 1 | 0 |
| | Chi Cubs | NL | MLB | 28 | 43 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .955 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9 | 12 | 1 |
| 1996 | Chi Cubs | NL | MLB | 29 | 70 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 9 | 9 | 0 |
| 1997 | Chi Cubs | NL | MLB | 30 | 52 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .867 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 10 | 2 |
| | NY Mets | NL | MLB | 30 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 3 | 0 |
| 1998 | NY Mets | NL | MLB | 31 | 66 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .944 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 12 | 1 |
| 1999 | NY Mets | NL | MLB | 32 | 80 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .833 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 4 | 6 | 2 |
| 2000 | NY Mets | NL | MLB | 33 | 77 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .917 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 12 | 10 | 2 |
| 2001 | Philadelphia | NL | MLB | 34 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 2 | 0 |
| | NY Mets | NL | MLB | 34 | 49 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 8 | 5 | 0 |
| 2003 | Clearwater | FSL | A+ | 36 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 2 | 0 |
| | Philadelphia | NL | MLB | 36 | 56 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 11 | 0 |
| 2004 | Colorado Springs | PCL | AAA | 37 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 4 | 0 |
| | Colorado | NL | MLB | 37 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 2 | 0 |
Minor League Totals | 188 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .929 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 97 | 152 | 19 |