| 2000 | Yakima | Nwst | A- | 21 | 0 | 11 | 0 | 1 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .964 | -- | 1.000 | .898 | -- | -- | -- | -- | -- | 86 | 41 | 8 |
| 2001 | Wilmington | SAL | A | 22 | 0 | 93 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .977 | -- | -- | -- | -- | -- | -- | -- | -- | 669 | 102 | 18 |
| 2002 | Jacksonville | Sou | AA | 23 | 0 | 117 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .981 | -- | -- | -- | -- | -- | -- | -- | -- | 815 | 81 | 17 |
| 2003 | Jacksonville | Sou | AA | 24 | 0 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .989 | -- | -- | -- | -- | -- | -- | -- | -- | 170 | 17 | 2 |
| | Las Vegas | PCL | AAA | 24 | 0 | 77 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .982 | 1.000 | -- | -- | -- | -- | -- | -- | -- | 449 | 36 | 9 |
| 2004 | Las Vegas | PCL | AAA | 25 | 0 | 81 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .994 | .909 | -- | 1.000 | -- | -- | -- | -- | -- | 573 | 58 | 5 |
| | Arizona | NL | MLB | 25 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .984 | -- | -- | -- | -- | -- | -- | -- | -- | 57 | 5 | 1 |
| 2005 | Tucson | PCL | AAA | 26 | 0 | 43 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .993 | -- | -- | -- | -- | -- | -- | -- | -- | 247 | 19 | 2 |
| | Arizona | NL | MLB | 26 | 0 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | 144 | 13 | 0 |
| 2006 | Columbus | IL | AAA | 27 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | 91 | 6 | 0 |
| 2007 | Iowa | PCL | AAA | 28 | 0 | 30 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .986 | 1.000 | -- | -- | -- | -- | -- | -- | -- | 217 | 18 | 3 |
| | Chi Cubs | NL | MLB | 28 | 0 | 31 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | -- | .995 | -- | -- | -- | -- | -- | -- | -- | -- | 190 | 11 | 1 |
| 2008 | Iowa | PCL | AAA | 29 | 0 | 94 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .991 | .929 | -- | -- | -- | -- | -- | -- | -- | 670 | 51 | 8 |
| | Chi Cubs | NL | MLB | 29 | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .976 | -- | -- | -- | -- | -- | -- | -- | -- | 40 | 1 | 1 |
| 2009 | Chi Cubs | NL | MLB | 30 | 0 | 79 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .995 | -- | -- | -- | -- | -- | -- | -- | -- | 573 | 46 | 3 |
| 2010 | Chi Cubs | NL | MLB | 31 | 0 | 72 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .992 | -- | -- | -- | -- | -- | -- | -- | -- | 493 | 29 | 4 |
| 2011 | Chi Cubs | NL | MLB | 32 | 0 | 45 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .982 | -- | -- | -- | -- | -- | -- | -- | -- | 319 | 15 | 6 |
| 2012 | Pensacola | Sou | AA | 33 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | 93 | 9 | 0 |
| | Round Rock | PCL | AAA | 33 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | 88 | 10 | 0 |
| | Syracuse | IL | AAA | 33 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .995 | -- | -- | -- | -- | -- | -- | -- | -- | 175 | 17 | 1 |
| | Chi Cubs | NL | MLB | 33 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .987 | -- | -- | -- | -- | -- | -- | -- | -- | 71 | 8 | 1 |
Minor League Totals | 0 | 640 | 9 | 1 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | -- | .986 | .949 | 1.000 | .904 | -- | -- | -- | -- | -- | 4343 | 465 | 73 |