Regular season
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1973 | SF | 6 | 114 | 51 | 44.7 | 589 | 2 | 6 | 10 | 5.2 | 44.8 |
| 1974 | SF | 6 | 74 | 29 | 39.2 | 316 | 2 | 7 | 7 | 4.3 | 22.1 |
| 1975 | DET | 10 | 191 | 86 | 45.0 | 1181 | 9 | 10 | 14 | 6.2 | 59.3 |
| 1976 | DET | 13 | 62 | 32 | 51.6 | 425 | 3 | 3 | 12 | 6.9 | 69.6 |
| 1977 | DET | 3 | 40 | 13 | 32.5 | 150 | 0 | 4 | 11 | 3.8 | 5.2 |
| 1979 | DET | 2 | 32 | 14 | 43.8 | 164 | 2 | 1 | 5 | 5.1 | 67.7 |