Regular season
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1964 | PHI | 4 | 23 | 12 | 52.2 | 199 | 2 | 1 | 7 | 8.7 | 92.5 |
| 1965 | PHI | 3 | 29 | 12 | 41.4 | 176 | 1 | 3 | 3 | 6.1 | 33.8 |
| 1966 | PHI | 11 | 51 | 21 | 41.2 | 262 | 1 | 4 | 3 | 5.1 | 31.7 |
| 1967 | CHI | 13 | 186 | 92 | 49.5 | 1260 | 6 | 14 | 19 | 6.8 | 50.9 |
| 1968 | CHI | 7 | 143 | 71 | 49.7 | 715 | 5 | 9 | 9 | 5.0 | 49.7 |
| 1969 | CHI | 14 | 160 | 87 | 54.4 | 783 | 4 | 8 | 14 | 4.9 | 55.3 |
| 1970 | CHI | 14 | 385 | 194 | 50.4 | 2130 | 16 | 18 | 24 | 5.5 | 61.5 |
| 1971 | CHI | 3 | 77 | 42 | 54.5 | 334 | 0 | 3 | 8 | 4.3 | 49.4 |
| 1974 | GB | 14 | 54 | 28 | 51.9 | 381 | 1 | 3 | 3 | 7.1 | 57.7 |
| 1975 | DET | 7 | 2 | 1 | 50.0 | 30 | 0 | 0 | 1 | 15.0 | 95.8 |