Regular season and playoffs
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1974 | CLE | 10 | 108 | 59 | 54.6 | 603 | 1 | 7 | 15 | 5.6 | 47.0 |
| 1975 | CLE | 7 | 88 | 45 | 51.1 | 427 | 1 | 3 | 8 | 4.9 | 54.5 |
| 1976 | CLE | 14 | 312 | 178 | 57.1 | 2113 | 17 | 14 | 16 | 6.8 | 77.3 |
| 1977 | CLE | 9 | 195 | 112 | 57.4 | 1233 | 9 | 14 | 16 | 6.3 | 61.8 |
| 1978 | CLE | 16 | 399 | 222 | 55.6 | 2906 | 21 | 15 | 29 | 7.3 | 80.7 |
| 1979 | CLE | 16 | 535 | 286 | 53.5 | 3793 | 28 | 26 | 43 | 7.1 | 73.4 |
| 1980 | CLE | 17 | 594 | 350 | 58.9 | 4315 | 30 | 17 | 25 | 7.3 | 86.4 |
| 1981 | CLE | 16 | 567 | 313 | 55.2 | 3876 | 17 | 25 | 34 | 6.8 | 68.2 |
| 1982 | CLE | 6 | 185 | 101 | 54.6 | 1064 | 4 | 8 | 13 | 5.8 | 60.7 |
| 1983 | CLE | 15 | 496 | 291 | 58.7 | 3566 | 26 | 23 | 27 | 7.2 | 79.1 |