Regular season
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | KC | 4 | 34 | 20 | 58.8 | 259 | 3 | 0 | 4 | 7.6 | 112.3 |
| 1984 | KC | 11 | 294 | 147 | 50.0 | 1707 | 6 | 11 | 14 | 5.8 | 59.2 |
| 1985 | KC | 12 | 172 | 86 | 50.0 | 1190 | 6 | 14 | 15 | 6.9 | 50.3 |
| 1986 | KC | 10 | 211 | 96 | 45.5 | 1200 | 10 | 6 | 25 | 5.7 | 67.6 |
| 1987 | KC | 3 | 31 | 15 | 48.4 | 154 | 1 | 1 | 7 | 5.0 | 60.4 |
| 1988 | PIT | 3 | 79 | 38 | 48.1 | 494 | 2 | 3 | 4 | 6.3 | 60.8 |
| 1989 | PIT | 3 | 60 | 22 | 36.7 | 282 | 1 | 3 | 4 | 4.7 | 36.9 |