Terrence Ross scored 18 points and Washington defeated Southern California 80-58 Thursday night to clinch at least a share of the Pac-12 regular-season title.
The Huskies can win the conference title outright for just the second time since 1953 if they beat UCLA on Saturday and complete a sweep of the Los Angeles schools for only the third time since 1979. Washington (21-8, 14-3) has won 10 of 11 and six of its last seven on the road. It last won the league title outright in 2009.
Byron Wesley scored a career-high 23 points and Garrett Jackson added 14 for the Trojans (6-24, 1-16), who lost their eighth in a row and fell to 4-12 at home with one game left before next week's league tournament.
A Washington loss to UCLA could allow California to share the regular-season title if the Golden Bears win at Stanford on Sunday. Cal would earn the top seed because it beat the Huskies.