Regular season
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1979 | KC | 16 | 270 | 146 | 54.1 | 1484 | 6 | 14 | 37 | 5.5 | 55.8 |
| 1980 | KC | 14 | 320 | 193 | 60.3 | 2250 | 10 | 12 | 49 | 7.0 | 76.4 |
| 1981 | KC | 13 | 134 | 77 | 57.5 | 934 | 3 | 4 | 17 | 7.0 | 74.0 |
| 1982 | KC | 9 | 93 | 49 | 52.7 | 665 | 3 | 2 | 17 | 7.2 | 77.6 |
| 1984 | CHI | 6 | 78 | 53 | 67.9 | 595 | 3 | 0 | 7 | 7.6 | 103.3 |
| 1985 | CHI | 16 | 107 | 53 | 49.5 | 777 | 1 | 5 | 17 | 7.3 | 57.3 |
| 1986 | CHI | 16 | 64 | 34 | 53.1 | 451 | 2 | 4 | 8 | 7.0 | 60.1 |