Erin Baker scored 20 points, including six 3-pointers, as the Chieftains won on the road.
Sydney Flores-Tucker added four 3-pointers, accounting for all 12 of her points. Columbia River made 13 3-pointers.
Liz Canton scored 11 points and Katie Kolbe added 10 for River (2-1).
Jasmine Morgan scored 9 points to lead Seton Catholic (1-2).
COLUMBIA RIVER 71, SETON CATHOLIC 25
COLUMBIA RIVER (2-1) — Ellie Furth 0, Liz Canton 11, Lily Jonas 2, Sydney Flores-Tucker 12, Erin Baker 20, Katie Kolbe 10, Giovanni Rhoads 4, Jordan Ryan 8, Ellie Christian 4. Totals 26 (13) 6-12 71.
SETON CATHOLIC (1-3) — Haley Vick 5, Michaela Ephraim 2, Emma Watkins 3, Jasmine Morgan 9, Madi Manary 0, Claire Kirn 0, Cheyenne Badger 5, Josie Partridge 0, Cailean McGovern 1, Aislynn Hogan 0, Katherine Zdunich 0. Totals 8 (1) 8-16 25.
C. River 16 19 14 22–71
Seton 3 12 5 5–25
JV — River won.