Regular season and playoffs
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1963 | BUF | 15 | 95 | 42 | 44.2 | 605 | 4 | 7 | 7 | 6.4 | 48.8 |
| 1964 | BUF | 15 | 128 | 55 | 43.0 | 1137 | 6 | 8 | 17 | 8.9 | 64.5 |
| 1965 | BUF | 15 | 71 | 30 | 42.3 | 388 | 3 | 6 | 3 | 5.5 | 38.9 |
| 1966 | BUF | 14 | 84 | 33 | 39.3 | 549 | 4 | 5 | 4 | 6.5 | 53.1 |
| 1967 | LV | 16 | 483 | 245 | 50.7 | 3547 | 34 | 21 | 41 | 7.3 | 80.3 |
| 1968 | LV | 15 | 502 | 245 | 48.8 | 3993 | 31 | 15 | 30 | 8.0 | 84.0 |
| 1969 | LV | 16 | 482 | 249 | 51.7 | 3745 | 40 | 29 | 15 | 7.8 | 80.1 |
| 1970 | LV | 16 | 376 | 188 | 50.0 | 2709 | 24 | 15 | 16 | 7.2 | 78.4 |
| 1971 | LV | 14 | 242 | 118 | 48.8 | 1717 | 16 | 16 | 18 | 7.1 | 66.8 |
| 1972 | LV | 15 | 299 | 155 | 51.8 | 2043 | 18 | 14 | 15 | 6.8 | 74.3 |
| 1973 | LV | 8 | 93 | 42 | 45.2 | 614 | 2 | 8 | 11 | 6.6 | 38.6 |
| 1974 | LV | 4 | 9 | 3 | 33.3 | 35 | 1 | 4 | 3 | 3.9 | 43.5 |