Jones, who entered Saturday's preseason game with 9:11 left in the third quarter, completed 11 of 21 passes for 162 yards and a touchdown.
The touchdown almost won it, but the Bills couldn't complete a two-point conversion and lost by a point. Coach Rex Ryan liked Jones' poise, an area Jones struggled with when he entered spring practices. He'll begin the year as the No. 3 quarterback, but a 93.8 rating in his first pro appearance shows that maybe the Bills weren't too crazy for betting on his long-term upside, given his size and athletic ability.