Regular season
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1974 | SF | 10 | 184 | 88 | 47.8 | 1327 | 10 | 15 | 25 | 7.2 | 56.1 |
| 1975 | SF | 4 | 51 | 24 | 47.1 | 318 | 1 | 2 | 6 | 6.2 | 57.5 |
| 1976 | NE | 2 | 5 | 1 | 20.0 | 7 | 0 | 0 | 0 | 1.4 | 39.6 |
| 1978 | NE | 2 | 26 | 15 | 57.7 | 182 | 0 | 2 | 3 | 7.0 | 47.3 |
| 1979 | NE | 6 | 47 | 27 | 57.4 | 248 | 2 | 3 | 4 | 5.3 | 59.5 |
| 1981 | NE | 2 | 36 | 15 | 41.7 | 218 | 1 | 4 | 2 | 6.1 | 31.7 |