| Date | Team | Opp | Result | Dec | GS | IP | AB | BF | H | R | ER | HR | BB | IBB | SO | HBP | SH | SF | WP | BK | ERA | WHIP | K/9 | BB/9 | FIP | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1987 | ||||||||||||||||||||||||||
| Season Total 0-1 | 2 | 7.0 | 8 | 7 | 5 | 3 | 2 | 1 | 6.43 | 1.43 | 1.29 | 2.57 | — | 61 |
| Year | Level | Team | Org | G | GS | IP | H | R | ER | BB | SO | HR | W | L | SV | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1990 | AA | Huntsville | Oakland Athletics | 3 | 0 | 4.2 | 9 | 7 | 7 | 7 | 7 | 1 | 0 | 0 | 0 | 13.50 | 3.43 | 13.50 |
| 1991 | AA | Huntsville | Oakland Athletics | 2 | 0 | 4.1 | 1 | 2 | 0 | 2 | 6 | 0 | 2 | 0 | 0 | 0.00 | 0.69 | 12.46 |
| 1991 | MLB | Oakland Athletics | Oakland Athletics | 11 | 0 | 14.0 | 12 | 11 | 11 | 10 | 9 | 3 | 0 | 0 | 0 | 7.07 | 1.57 | 5.79 |
| 1992 | MLB | Oakland Athletics | Oakland Athletics | 2 | 2 | 7.0 | 12 | 6 | 5 | 9 | 4 | 0 | 0 | 1 | 0 | 6.43 | 3.00 | 5.14 |
| 1993 | AA | Huntsville | Oakland Athletics | 30 | 0 | 38.2 | 28 | 14 | 13 | 16 | 62 | 3 | 4 | 0 | 16 | 3.03 | 1.14 | 14.43 |
| 1993 | MLB | Oakland Athletics | Oakland Athletics | 17 | 0 | 24.2 | 26 | 25 | 22 | 26 | 24 | 2 | 1 | 0 | 0 | 8.03 | 2.11 | 8.76 |
| 1994 | MLB | Oakland Athletics | Oakland Athletics | 37 | 0 | 49.1 | 31 | 24 | 22 | 39 | 45 | 7 | 4 | 2 | 1 | 4.01 | 1.42 | 8.21 |
| 1995 | MLB | Oakland Athletics | Oakland Athletics | 16 | 0 | 18.1 | 25 | 17 | 17 | 21 | 19 | 4 | 0 | 1 | 0 | 8.35 | 2.51 | 9.33 |
| 1996 | MLB | Oakland Athletics | Oakland Athletics | 17 | 0 | 26.1 | 18 | 11 | 11 | 24 | 14 | 2 | 0 | 1 | 1 | 3.76 | 1.59 | 4.78 |
| 1997 | AA | Akron | Cleveland Indians | 33 | 0 | 32.0 | 41 | 19 | 14 | 12 | 28 | 7 | 0 | 1 | 5 | 3.94 | 1.66 | 7.88 |
| 1991–1996 | MLB | Career (6 yrs) | 100 | 2 | 139.2 | 124 | 94 | 88 | 129 | 115 | 18 | 5 | 5 | 2 | 5.67 | 1.81 | 7.41 | |
| 1990–1997 | AA | Career (4 yrs) | 68 | 0 | 79.2 | 79 | 42 | 34 | 37 | 103 | 11 | 6 | 1 | 21 | 3.84 | 1.46 | 11.64 |