Regular season and playoffs
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1973 | BAL | 8 | 108 | 43 | 39.8 | 539 | 4 | 12 | 14 | 5.0 | 28.8 |
| 1974 | BAL | 11 | 270 | 143 | 53.0 | 1610 | 8 | 12 | 36 | 6.0 | 62.4 |
| 1975 | BAL | 15 | 355 | 209 | 58.9 | 2574 | 18 | 8 | 38 | 7.3 | 88.9 |
| 1976 | BAL | 15 | 368 | 218 | 59.2 | 3248 | 25 | 11 | 34 | 8.8 | 98.4 |
| 1977 | BAL | 15 | 419 | 236 | 56.3 | 2850 | 17 | 11 | 32 | 6.8 | 79.9 |
| 1978 | BAL | 3 | 42 | 27 | 64.3 | 370 | 4 | 1 | 6 | 8.8 | 114.2 |
| 1979 | BAL | 4 | 92 | 43 | 46.7 | 643 | 3 | 3 | 10 | 7.0 | 67.4 |
| 1980 | BAL | 15 | 446 | 248 | 55.6 | 3134 | 23 | 21 | 34 | 7.0 | 75.3 |
| 1981 | BAL | 15 | 426 | 244 | 57.3 | 3094 | 21 | 20 | 31 | 7.3 | 76.9 |
| 1982 | LAR | 4 | 87 | 48 | 55.2 | 527 | 2 | 4 | 8 | 6.1 | 61.8 |