Preston Jones rushed for 249 yards on 24 carries and scored three touchdowns to lead the Thunder to Class 4A Greater St. Helens League win.
Jones had touchdown runs of 4 and 2 yards as the Thunder built a 14-0 lead. He had a 73-yard TD run in the third quarter.
Colin Biggs, playing in place of the injured Lex Reese, completed 5 of 6 passes for 80 yards, including a pair of touchdown passes to Corey Henderson.
Reese suffered a broken wrist last week against Skyview, which ended his season.
Kalani Umiamaka rushed for 89 yards on 20 carries for Heritage, but missed much of the fourth quarter with an ankle injury.