Regular season and playoffs
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | PIT | 8 | 88 | 45 | 51.1 | 553 | 3 | 5 | 10 | 6.3 | 58.6 |
| 1983 | PIT | 3 | 27 | 12 | 44.4 | 146 | 1 | 2 | 1 | 5.4 | 43.1 |
| 1984 | PIT | 15 | 336 | 184 | 54.8 | 2673 | 20 | 20 | 27 | 8.0 | 75.9 |
| 1985 | PIT | 10 | 233 | 117 | 50.2 | 1428 | 13 | 7 | 10 | 6.1 | 75.5 |
| 1986 | PIT | 14 | 425 | 216 | 50.8 | 2444 | 15 | 18 | 13 | 5.8 | 62.5 |
| 1987 | PIT | 12 | 336 | 156 | 46.4 | 1896 | 6 | 19 | 18 | 5.6 | 46.7 |
| 1988 | LAC | 12 | 272 | 147 | 54.0 | 1580 | 6 | 13 | 9 | 5.8 | 58.8 |
| 1989 | NYJ | 1 | 2 | 2 | 100.0 | 13 | 0 | 0 | 0 | 6.5 | 93.8 |