Patrick Mahomes threw two touchdown passes but Missouri rookie Nick Bolton came up with the key play as the Kansas City Chiefs kept their AFC top seeding hopes alive with a seesawing 28-24 win over the Denver Broncos.

Bolton delivered a 86-yard scoop and score to give the Chiefs a lead they would not relinquish in the fourth quarter after Melvin Ingram's tackle forced a fumble from Broncos running back Melvin Gordon.

The result means the Chiefs (12-5) will claim the AFC top seed if the Tennessee Titans (11-5) fail to beat the Houston Texans on Sunday.

The victory was also the Chiefs's 13th straight road win against AFC West opponents.

Mahomes completed 27 of 44 passes for 270 yards with two TD passes for Travis Kelce in the first quarter and Jerick McKinnon in the third. The Kansas City QB also rushed 54 yards from nine carries.

The Broncos, who will finish last in the AFC West with a 7-10 record, were difficult to shake all game, with QB Drew Lock rushing two touchdowns, while running back Gordon scored a 47-yard TD to put them up 20-17 in the third.

The Chiefs found the match-winning play in the fourth quarter as the Broncos closed the nine-yard line after a 10-play drive with Ingram forcing the error and Lock unable to tackle Bolton.