The Broncos entered Thursday night ranked 30th in total offense, including 25th in rushing. They are having no problem moving the ball against the league's No. 1 defense, though.
The Broncos have 125 yards, including 51 rushing, after three drives against the Seahawks.
RJ Harvey's 1-yard touchdown run with 5:15 remaining in the first half has the Broncos holding a 14-3 lead.
Seahawks cornerback Devon Witherspoon was called for a 20-yard defensive pass interference penalty on Courtland Sutton in the end zone to set up Harvey's score.
J.K. Dobbins scored the team's first touchdown on a 4-yard run.
Dobbins has 10 carries for 35 yards and Harvey three carries for 10 yards.
Bo Nix is 9-of-13 for 74 yards.