Tyler Combs scored 15 of his 22 points in the fourth quarter as the Titans pulled away for a win in Snohomish.
Zack Reznick had two 3-pointers down the stretch. Combs also had three assists in the waning minutes as Union (3-1) finished strong in a game that was tight throughout.
“He took over in the fourth,” Union coach Blake Conley said of Combs. “It was our best and most complete game of the year.”
Reznick finished with 15 points. Alishawuan Taylor added 12.
Evan Mannes scored 17 points to lead Glacier Peak (3-1).
UNION 66, GLACIER PEAK 57
UNION (3-1) — Coby Weatherspoon 0, Houston Combs 0, Zach Reznick 15, Tyler Combs 22, Quinn Lamey 10, Dustin Nettles 0, Alishawuan Taylor 12, Ethan Smith 0, Aiden Nellor 4, Brad Lackey 3, Josh Reznick 0. Totals 22 (9) 13-14 66.