| 1993 | GCL Red Sox | GCL | Rk | 18 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 4 | 16 | 0 |
| 1994 | Sarasota | FSL | A+ | 19 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .949 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 19 | 18 | 2 |
| 1995 | Trenton | East | AA | 20 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 11 | 14 | 0 |
| | Pawtucket | IL | AAA | 20 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 4 | 0 |
| | Boston | AL | MLB | 20 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 2 | 0 |
| 1996 | Pawtucket | IL | AAA | 21 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .950 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 7 | 12 | 1 |
| | Boston | AL | MLB | 21 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 2 | 0 |
| 1997 | Pawtucket | IL | AAA | 22 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .900 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 7 | 1 |
| | Boston | AL | MLB | 22 | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .824 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 8 | 3 |
| 1998 | Tucson | PCL | AAA | 23 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 7 | 8 | 0 |
| | Arizona | NL | MLB | 23 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 15 | 0 |
| | KC Royals | AL | MLB | 23 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 3 | 0 |
| 1999 | KC Royals | AL | MLB | 24 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .977 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 16 | 27 | 1 |
| 2000 | KC Royals | AL | MLB | 25 | 35 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .944 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 14 | 20 | 2 |
| 2001 | KC Royals | AL | MLB | 26 | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .981 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 18 | 33 | 1 |
| 2002 | KC Royals | AL | MLB | 27 | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .947 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 23 | 31 | 3 |
| 2003 | Boston | AL | MLB | 28 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 11 | 0 |
| | Pittsburgh | NL | MLB | 28 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .971 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 15 | 19 | 1 |
| 2004 | St. Louis | NL | MLB | 29 | 31 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .976 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 10 | 30 | 1 |
| 2005 | St. Louis | NL | MLB | 30 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .976 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 12 | 28 | 1 |
| 2006 | St. Louis | NL | MLB | 31 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 8 | 25 | 0 |
| 2007 | Milwaukee | NL | MLB | 32 | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .980 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 17 | 32 | 1 |
| 2008 | Milwaukee | NL | MLB | 33 | 31 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .976 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 10 | 30 | 1 |
| 2009 | Wisconsin | Midw | A | 34 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 1 | 0 |
| | Nashville | PCL | AAA | 34 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 2 | 0 |
| | Milwaukee | NL | MLB | 34 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .969 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6 | 25 | 1 |
| 2010 | Wisconsin | Midw | A | 35 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 1 | 0 |
| | St. Louis | NL | MLB | 35 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .800 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 3 | 5 | 2 |
| | Milwaukee | NL | MLB | 35 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2 | 5 | 0 |
| 2011 | Omaha | PCL | AAA | 36 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .975 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 11 | 28 | 1 |
| 2012 | Tucson | PCL | AAA | 37 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1 | 1 | 0 |
| | San Diego | NL | MLB | 37 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 5 | 7 | 0 |
Minor League Totals | 136 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .973 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 69 | 112 | 5 |