| 1985 | Edmonton/Hawaii | PCL | AAA | - | cal | 20 | p | - | 7 | 8 | 8 | -- | -- | .000 | .000 | .000 | 0.00 | 0.0 | 0 | 0 | 0.0 | 0.0 | 50.0 | -- | -- | -- | -- | -- | -- | 66-76 | 4 | Winston Llenas |
| | Pittsburgh | NL | MLB | 51 | pit | 20 | p | - | 5 | 10 | 8 | 0 | 0.9 | .400 | .000 | .000 | 0.00 | 0.0 | 2 | 0 | 0.0 | 0.0 | 30.0 | -- | -- | -- | -- | -- | -- | 57-104 | 6 | Chuck Tanner |
| 1986 | Nashua | East | AA | - | pit | 21 | p | - | 4 | 1 | 0 | 1 | -- | 1.000 | .000 | .000 | -- | 0.0 | 1 | 0 | 0.0 | 0.0 | 0.0 | -- | -- | -- | -- | -- | -- | 62-78 | 8 | Dennis Rogers |
| | Pittsburgh | NL | MLB | 51 | pit | 21 | p | - | 21 | 37 | 35 | -3 | -2.7 | .045 | .030 | .000 | 0.09 | 0.0 | 1 | 0 | 0.0 | 2.7 | 29.7 | -- | -- | -- | -- | -- | -- | 64-98 | 6 | Jim Leyland |
| 1987 | Vancouver | PCL | AAA | - | pit | 22 | p | - | 6 | 1 | 1 | -- | -- | .000 | .000 | .000 | 0.00 | 0.0 | 0 | 0 | 0.0 | 0.0 | 100.0 | -- | -- | -- | -- | -- | -- | 72-72 | 3 | Everett Bridges |
| | Pittsburgh | NL | MLB | 16 | pit | 22 | p | - | 26 | 36 | 28 | 2 | 1.6 | .381 | .061 | .061 | 0.00 | 0.0 | 6 | 2 | 25.0 | 0.0 | 33.3 | -- | -- | -- | -- | -- | -- | 80-82 | 4 | Jim Leyland |
| 1988 | Pittsburgh | NL | MLB | 16 | pit | 23 | p | - | 50 | 6 | 6 | -- | -- | .000 | .000 | .000 | -- | 0.0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 4.00 | 2.7 | 16 | 81.3 | 18.8 | 12.5 | 85-75 | 2 | Jim Leyland |
| 1989 | Pittsburgh | NL | MLB | 16 | pit | 24 | p | - | 52 | 11 | 10 | 0 | -1.2 | .143 | .111 | .000 | 0.50 | 0.0 | 1 | 0 | 0.0 | 9.1 | 18.2 | 3.00 | 2.2 | 24 | 66.7 | 33.3 | 8.3 | 74-88 | 5 | Jim Leyland |
| 1990 | Pittsburgh | NL | MLB | 16 | pit | 25 | p | - | 41 | 7 | 6 | 0 | -1.2 | .200 | .000 | .000 | 0.00 | 0.0 | 1 | 0 | 0.0 | 0.0 | 28.6 | 1.50 | 1.4 | 10 | 80.0 | 20.0 | 30.0 | 95-67 | 1 | Jim Leyland |
| 1991 | Pittsburgh | NL | MLB | 16 | pit | 26 | p | - | 52 | 2 | 2 | -- | -- | .000 | .000 | .000 | -- | 0.0 | 0 | 0 | 0.0 | 0.0 | 0.0 | -- | 2.5 | 5 | 60.0 | 40.0 | 0.0 | 98-64 | 1 | Jim Leyland |
| Minor League Totals (3 years) | 17 | 10 | 9 | -1 | -2.7 | .200 | .000 | .000 | 0.00 | 0.0 | 1 | 0 | 0.0 | 0.0 | 50.0 | -- | -- | -- | -- | -- | -- | .469 | -- | |
| AAA Totals (2 years) | 13 | 9 | 9 | - | - | .000 | .000 | .000 | 0.00 | 0.0 | 0 | 0 | 0.0 | 0.0 | 55.6 | -- | -- | -- | -- | -- | -- | .483 | -- | |
| AA Totals (1 year) | 4 | 1 | 0 | 1 | -- | 1.000 | .000 | .000 | -- | 0.0 | 1 | 0 | 0.0 | 0.0 | 0.0 | -- | -- | -- | -- | -- | -- | .443 | -- | |