Regular season
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1964 | HOU | 14 | 86 | 36 | 41.9 | 439 | 1 | 2 | 10 | 5.1 | 52.4 |
| 1965 | HOU | 14 | 107 | 38 | 35.5 | 528 | 5 | 5 | 20 | 4.9 | 48.3 |
| 1966 | HOU | 14 | 172 | 84 | 48.8 | 1200 | 10 | 5 | 17 | 7.0 | 79.1 |
| 1967 | HOU | 10 | 92 | 31 | 33.7 | 480 | 1 | 7 | 13 | 5.2 | 23.8 |
| 1968 | HOU | 11 | 105 | 53 | 50.5 | 864 | 10 | 3 | 9 | 8.2 | 98.3 |
| 1969 | HOU | 14 | 75 | 34 | 45.3 | 469 | 3 | 6 | 11 | 6.3 | 45.9 |