The Trappers held the Cougars to 12 points in the final three quarters to pick up their third win of the year.
Jocelyn Salavea scored 16 points to lead Fort Vancouver. Sydney Brugman added 10 points.
The score was tied at14 at the end of the first quarter, but it was all Fort from there.
Elizabeth Sheldon led Seton Catholic with 10 points.
FORT VANCOUVER 46, SETON CATHOLIC 26
SETON CATHOLIC — Megan McDaid-O’Neill 0, Elena Carrion 0, Cheyenne Badger 2, Kailey Beckwith 0, Elizabeth Sheldon 10, Amy Fraizer 7, Emily Martin 0, Nami Nsubuga 2, Katherine Zdunich 0, Annalei Santos 5. Totals 8 (3) 8-13 26.
FORT VANCOUVER (3-5) — Molly Deleo 2, Jennifer Azamar 4, Katy Parker 6, Devyn Tilley 6, Jocelyn Salavea 16, Karinna Aguas 2, Alexis Zelaya 0, Sydney Brugman 10, Esmeralda Espinoza 0. Totals 19 (2) 6-14 46.