Garrett Sim, E.J. Singler and Devoe Joseph all added 13 points for the Ducks (17-7, 8-4 Pac-12), who pulled within one game of the Huskies (16-8, 9-3) in the conference standings.
Tony Wroten scored 14 points to lead Washington, which had won five straight and eight of nine but fell into a tie for the league lead with California.
Oregon couldn’t have scripted a better first half. The Ducks shot 64.3 percent from the field, including 6 for 8 from the 3-point line, and scored 12 points off just seven Washington turnovers to take a 49-26 lead at the break.
The Ducks finished shooting 56.5 percent, led by Emory’s 7-for-8 performance. Washington shot 38.9 percent.
Oregon also outrebounded the Pac-12 rebounding leaders 39-38. Singler and Emory had eight boards each.