Manning kept up his torrid pace with four touchdown passes, and Matt Prater kicked a 28-yard field goal as time expired for a 51-48 victory over the Dallas Cowboys on Sunday.
Romo threw for 506 yards and five touchdowns, the first 500-yard game in Dallas history, but was intercepted by Danny Trevathan at the Dallas 24 in the final 2 minutes to set up Prater’s winning kick.
The Broncos (5-0) got all the way down to the Dallas 1, then drained the clock to make sure Prater’s kick was the final play in a wild game.
The teams combined for 1,039 yards of total offense in the second-highest scoring game in regulation since the NFL-AFL merger in 1970, according to STATS.
Cincinnati and Cleveland combined for 106 points in the Browns’ 58-48 win in 2004.
Dallas (2-3) took a 48-41 lead when Romo threw 79 yards to Dez Bryant to set up a 4-yard scoring toss to Cole Beasley.
Manning, who threw for 414 yards, answered by leading a nine-play, 73-yard drive to Knowshon Moreno’s tying 1-yard score with 2:44 remaining.
The Cowboys were on the verge of getting blown out early in the second half when they finally stopped Manning and forced a field goal. They later ended his streak of 227 passes without an interception when Morris Claiborne picked him off late in the third quarter.
Dallas converted the turnover into a 41-38 lead on Romo’s 10-yard pass to Jason Witten, who had 121 yards receiving and a touchdown.
The Broncos answered with a drive to Prater’s tying 50-yard field goal.
The biggest momentum swing came on Romo’s 82-yard touchdown to rookie Terrance Williams that cut Denver’s lead to 35-27 in the third quarter.