The unbeaten Titans shot 58 percent from the field and held a comfortable halftime lead to move to 5-0.
It’s the third 90-plus-point game by Union through five games.
Brad Lackey paced the Titans with 16 points on 6 of 9 shooting. He was one of five Titans to score in double figures. Izaiah Vongnath had 15, followed by 13 from Ariya Briscoe and 10 apiece from Kaden Horn and Ty McCullum.
Kahlil Singleton led Fort with 18 points and Tre Cannon added 13.
UNION 91, FORT VANCOUVER 44
UNION (5-0) — Aiden Liss 2, Brad Lackey 16, Ty McCullum 10, Tanner Toolson 4, Izaiah Vongnath 15, Josh Reznick 4, Kaden Horn 10, Connor Flannigan 6, Mason Hill 9, Ariya Briscoe 13, Spencer McGuire 6. Totals 39 (7) 6-11 91.
FORT VANCOUVER (1-3) — Darius Scheer 0, Tyrique Cargile 3, Keyontae Cage 6, Kahlil Singleton 18, Tre Cannon 13, Ashtin Rivada 0, Morgan Weinmaster 0, Gabe Daigle 0, Justin Vernon 4, Trevor Wright 0, John Tulaepa 0. Totals 12 (2) 18-28 44.