The Timberwolves used a balanced scoring attack to get an early lead and hold off a late rally from the Panthers.
LaTrell Johnson had 16 points and eight rebounds to lead Heritage.
Three other Timberwolves also scored in double figures: Josh Patton (12), Jander Cline (11) and Keoni Peneueta (10).
Collin Prangley led Washougal with 29 points.
Heritage had a double-digit lead for much of the game. Washougal, though, cut the deficit to three points before Heritage responded in the final minutes of the fourth quarter.
HERITAGE 60, WASHOUGAL 50
WASHOUGAL — Louie Barles 5, Collin Prangley 29, Ben Gutkind 0, Jake Klackner 7, Troy Prince-Butterfield 0, Mitchell Leon 0, Carter Murray 0, Carson Adams 9, John Miner 0, Bailey Deming 0, Nick Oakes 0. Totals 16 (2) 16-24 50.