Brandon Allen posted a passer rating of 125.6 in his first NFL start. This was the best passer rating for a Denver Broncos starting quarterback since Trevor Siemian posted the exact same passer rating in his third career start at Cincinnati in 2016. His passer rating in his first start was the 12th best posted by a quarterback making his first career start this century.
| Rk | Player | Age | Date | Tm | Opp | Result | G# | Week | Cmp | Att | Cmp% | Yds | TD | Int | Rate | Sk | Yds |
| 1 | Marcus Mariota | 21. |