Regular season
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1975 | CHI | 8 | 126 | 67 | 53.2 | 942 | 6 | 11 | 13 | 7.5 | 57.0 |
| 1976 | CHI | 14 | 271 | 118 | 43.5 | 1580 | 8 | 15 | 24 | 5.8 | 49.4 |
| 1977 | CHI | 14 | 293 | 154 | 52.6 | 2004 | 11 | 18 | 23 | 6.8 | 61.3 |
| 1978 | CHI | 13 | 264 | 141 | 53.4 | 1718 | 5 | 16 | 26 | 6.5 | 54.8 |
| 1979 | CHI | 7 | 51 | 27 | 52.9 | 310 | 2 | 3 | 8 | 6.1 | 60.1 |
| 1981 | CHI | 9 | 32 | 15 | 46.9 | 185 | 1 | 3 | 7 | 5.8 | 36.6 |
| 1982 | CHI | 2 | 20 | 8 | 40.0 | 84 | 0 | 0 | 4 | 4.2 | 52.9 |
| 1984 | CHI | 4 | 53 | 30 | 56.6 | 288 | 0 | 3 | 5 | 5.4 | 48.3 |