| YR | CLUB | W-L | ERA | G | GS | CG | SHO | SV | IP | H | R | ER | BB | SO |
| 1987 | Fayetteville | 4-9 | 3.57 | 21 | 20 | 0 | 0 | 0 | 111.0 | 101 | 56 | 44 | 69 | 91 |
| 1988 | Lakeland | 8-7 | 3.56 | 25 | 25 | 1 | 1 | 0 | 131.1 | 122 | 61 | 52 | 72 | 102 |
| 1989 | London | 10-6 | 3.84 | 20 | 20 | 3 | 1 | 0 | 122.0 | 98 | 55 | 52 | 59 | 97 |
| 1990 | Toledo | 6-15 | 4.90 | 29 | 29 | 2 | 0 | 0 | 158.0 | 145 | 93 | 86 | 81 | 133 |
| DETROIT | 1-2 | 3.77 | 4 | 3 | 0 | 0 | 0 | 14.1 | 13 | 6 | 6 | 10 | 7 | |
| 1991 | Toledo | 8-8 | 3.92 | 22 | 20 | 2 | 0 | 1 | 135.1 | 127 | 65 | 59 | 72 | 95 |
| DETROIT | 2-4 | 5.18 | 11 | 11 | 1 | 0 | 0 | 57.1 | 58 | 37 | 33 | 30 | 35 | |
| 1992 | DETROIT | 3-8 | 6.78 | 16 | 13 | 0 | 0 | 0 | 65.0 | 80 | 51 | 49 | 33 | 34 |
| Toledo | 4-6 | 5.13 | 16 | 13 | 3 | 0 | 0 | 86.0 | 92 | 57 | 49 | 47 | 81 | |
| 1993 | COLORADO | 0-0 | 10.80 | 5 | 0 | 0 | 0 | 0 | 6.2 | 10 | 10 | 8 | 9 | 5 |
| MONTREAL | 1-0 | 6.75 | 3 | 0 | 0 | 0 | 0 | 5.1 | 0 | 4 | 4 | 1 | 4 | |
| 1994 | injured | |||||||||||||
| 1995 | Lakeland | 4-2 | 3.19 | 13 | 7 | 0 | 0 | 2 | 67.2 | 57 | 25 | 24 | 19 | 64 |
| Jacksonville | 1-0 | 0.00 | 2 | 2 | 0 | 0 | 0 | 12.0 | 9 | 0 | 0 | 1 | 11 | |
| 1996 | DETROIT | 0-4 | 9.35 | 11 | 8 | 0 | 0 | 0 | 43.1 | 60 | 52 | 45 | 26 | 36 |
| MINNESOTA | 6-5 | 5.09 | 25 | 17 | 0 | 0 | 0 | 122.0 | 134 | 73 | 69 | 42 | 75 | |
| 1997 | MINNESOTA | 2-10 | 7.68 | 17 | 15 | 0 | 0 | 0 | 77.1 | 102 | 66 | 66 | 28 | 33 |
| Salt Lake | 3-3 | 7.03 | 7 | 7 | 0 | 0 | 0 | 39.2 | 56 | 39 | 31 | 16 | 23 | |
| 1998 | Durham | 2-4 | 5.35 | 7 | 7 | 0 | 0 | 0 | 35.1 | 44 | 26 | 21 | 14 | 19 |
| TAMPA BAY | 0-0 | 3.73 | 48 | 0 | 0 | 0 | 0 | 31.1 | 33 | 13 | 13 | 12 | 21 | |
| 1999 | TAMPA BAY | 3-2 | 5.18 | 37 | 0 | 0 | 0 | 0 | 24.1 | 26 | 15 | 14 | 14 | 22 |
| PHILLIES | 1-1 | 3.90 | 29 | 0 | 0 | 0 | 1 | 32.1 | 33 | 15 | 14 | 15 | 19 | |
| TOTAL | AL | 17-35 | 5.68 | 169 | 67 | 1 | 0 | 0 | 435.0 | 506 | 313 | 295 | 195 | 263 |
| NL | 2-1 | 6.45 | 37 | 0 | 0 | 0 | 1 | 44.1 | 43 | 29 | 26 | 25 | 28 | |
| MAJOR LEAGUES | 19-36 | 6.03 | 206 | 67 | 1 | 0 | 1 | 479.1 | 558 | 342 | 321 | 220 | 291 |
© 1999 Phillies1