Regular season
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1963 | BUF | 14 | 71 | 33 | 46.5 | 437 | 3 | 4 | 6 | 6.2 | 57.1 |
| 1964 | BUF | 14 | 128 | 55 | 43.0 | 1137 | 6 | 8 | 17 | 8.9 | 64.5 |
| 1965 | BUF | 14 | 70 | 29 | 41.4 | 376 | 3 | 6 | 3 | 5.4 | 37.6 |
| 1966 | BUF | 14 | 84 | 33 | 39.3 | 549 | 4 | 5 | 4 | 6.5 | 53.1 |
| 1967 | LV | 14 | 425 | 220 | 51.8 | 3228 | 30 | 20 | 37 | 7.6 | 80.8 |
| 1968 | LV | 13 | 416 | 206 | 49.5 | 3245 | 25 | 15 | 27 | 7.8 | 80.9 |
| 1969 | LV | 14 | 426 | 221 | 51.9 | 3302 | 34 | 25 | 11 | 7.8 | 79.8 |
| 1970 | LV | 14 | 356 | 179 | 50.3 | 2516 | 22 | 15 | 15 | 7.1 | 76.5 |
| 1971 | LV | 14 | 242 | 118 | 48.8 | 1717 | 16 | 16 | 18 | 7.1 | 66.8 |
| 1972 | LV | 14 | 281 | 149 | 53.0 | 1998 | 18 | 12 | 14 | 7.1 | 79.5 |
| 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 |