| Year | Team | W | L | G | IP | ERA | WHIP | K | BB | HR | K/9 | BB/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2003 | Kansas City Royals | 1 | 6 | 15 | 85.1 | 5.17 | 1.35 | 39 | 21 | 11 | 4.11 | 2.21 |
| 2005 |
| Kansas City Royals |
| 1 |
| 3 |
| 13 |
| 36.0 |
| 6.75 |
| 1.81 |
| 19 |
| 10 |
| 3 |
| 4.75 |
| 2.50 |
| 2006 | Kansas City Royals | 0 | 0 | 1 | 2.0 | 22.50 | 5.50 | 2 | 1 | 1 | 9.00 | 4.50 |
| 2006 | Boston Red Sox | 4 | 5 | 16 | 58.1 | 6.02 | 1.65 | 55 | 19 | 11 | 8.49 | 2.93 |
| 2006 | 4 | 5 | 17 | 60.1 | 6.56 | 1.77 | 57 | 20 | 12 | 8.50 | 2.98 |
| 2007 | Boston Red Sox | 2 | 3 | 46 | 54.1 | 3.81 | 1.42 | 41 | 32 | 7 | 6.79 | 5.30 |
| 2008 | Boston Red Sox | 0 | 0 | 2 | 1.2 | 21.60 | 2.40 | 1 | 2 | 1 | 5.40 | 10.80 |
| Career | — | 8 | 17 | 93 | 237.2 | 5.57 | 1.55 | 157 | 85 | 34 | 5.95 | 3.22 |
