| Year | Team | League | W | L | ERA | G | GS | CG | SHO | GF | SV | IP | H | R | ER | HR | BB | SO | WHIP | H9 | HR9 | BB9 | SO9 |
| 1991 | Toronto Blue Jays | MLB Playoffs-3-Ch series | 0 | 1 | 3.18 | 4 | 0 | 0 | 0 | 0 | 0 | 5.2 | 5 | 0 | 2 | 0 | 2 | 5 | 1.24 | 7.94 | 0.00 | 3.18 | 7.94 |
| 1992 | Toronto Blue Jays | MLB Playoffs-3-Ch series | 0 | 0 | 6.75 | 2 | 0 | 0 | 0 | 0 | 0 | 1.1 | 4 | 0 | 1 | 0 | 0 | 1 | 3.00 | 27.01 | 0.00 | 0.00 | 6.75 |
| 1992 | Toronto Blue Jays | MLB Playoffs-4-World-Series | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0 | 1 | 1.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 1993 | Toronto Blue Jays | MLB Playoffs-3-Ch series | 0 | 0 | 3.86 | 1 | 0 | 0 | 0 | 0 | 0 | 2.1 | 3 | 0 | 1 | 0 | 0 | 2 | 1.29 | 11.57 | 0.00 | 0.00 | 7.72 |
| 1993 | Toronto Blue Jays | MLB Playoffs-4-World-Series | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0 | 0 | 2.1 | 2 | 0 | 0 | 0 | 0 | 4 | 0.86 | 7.72 | 0.00 | 0.00 | 15.43 |
| 1997 | Seattle Mariners | MLB Playoffs-2-Divisional | 0 | 0 | 54.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0.2 | 3 | 0 | 4 | 0 | 1 | 1 | 6.00 | 40.50 | 0.00 | 13.50 | 13.50 |
| 2000 | St. Louis Cardinals | MLB Playoffs-2-Divisional | 0 | 0 | 10.80 | 2 | 0 | 0 | 0 | 0 | 0 | 1.2 | 5 | 0 | 2 | 0 | 1 | 2 | 3.60 | 27.00 | 0.00 | 5.40 | 10.80 |
| 2000 | St. Louis Cardinals | MLB Playoffs-3-Ch series | 0 | 1 | 0.00 | 3 | 0 | 0 | 0 | 0 | 0 | 3.1 | 1 | 0 | 0 | 0 | 2 | 0 | 0.90 | 2.70 | 0.00 | 5.40 | 0.00 |
| 2001 | St. Louis Cardinals | MLB Playoffs-2-Divisional | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 1.1 | 1 | 0 | 0 | 0 | 0 | 0 | 0.75 | 6.75 | 0.00 | 0.00 | 0.00 |
| 2003 | Boston Red Sox | MLB Playoffs-2-Divisional | 0 | 0 | 0.00 | 3 | 0 | 0 | 0 | 0 | 0 | 4.1 | 0 | 0 | 0 | 0 | 0 | 5 | 0.00 | 0.00 | 0.00 | 0.00 | 10.39 |
| 2003 | Boston Red Sox | MLB Playoffs-3-Ch series | 0 | 0 | 0.00 | 5 | 0 | 0 | 0 | 0 | 0 | 5.1 | 1 | 0 | 0 | 0 | 2 | 6 | 0.56 | 1.69 | 0.00 | 3.38 | 10.13 |
| 2004 | Boston Red Sox | MLB Playoffs-2-Divisional | 0 | 0 | 9.00 | 3 | 0 | 0 | 0 | 1 | 0 | 3 | 3 | 3 | 3 | 1 | 1 | 5 | 1.33 | 9.00 | 3.00 | 3.00 | 15.00 |
| 2004 | Boston Red Sox | MLB Playoffs-3-Ch series | 0 | 0 | 4.76 | 5 | 0 | 0 | 0 | 0 | 0 | 5.2 | 10 | 3 | 3 | 0 | 5 | 2 | 2.65 | 15.88 | 0.00 | 7.94 | 3.18 |
| 2004 | Boston Red Sox | MLB Playoffs-4-World-Series | 0 | 0 | 6.00 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 2 | 2 | 0 | 1 | 0 | 1.00 | 6.00 | 0.00 | 3.00 | 0.00 |
| 2005 | Boston Red Sox | MLB Playoffs-2-Divisional | 0 | 0 | 9.00 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1.00 | 9.00 | 0.00 | 0.00 | 9.00 |
| 2006 | United States | World Baseball ClassicXX | 1 | 0 | 3.86 | 3 | 0 | 0 | 0 | 0 | 0 | 2.1 | 3 | 1 | 1 | 0 | 1 | 2 | 1.71 | 11.57 | 0.00 | 3.86 | 7.72 |
| 2008 | Boston Red Sox | MLB Playoffs-3-Ch series | 0 | 1 | 10.12 | 2 | 0 | 0 | 0 | 2 | 0 | 2.2 | 2 | 3 | 3 | 0 | 4 | 0 | 2.25 | 6.75 | 0.00 | 13.50 | 0.00 |