Nigel Williams-Goss scored 30 points Thursday night as undefeated and top-ranked
Przemek Karnowski added 23 points and seven rebounds for the Bulldogs. Gonzaga (27-0, 15-0 West Coast) is seeking to become the first team since Kentucky in 2015 to go undefeated in the regular season.
Chase Foster scored 15 points and Matt McCarthy added 11 for USF. The Dons (18-10, 8-7) have lost their last 11 games against Gonzaga and 28 in a row at Spokane dating to 1989.
Williams-Goss, a junior guard, added six rebounds and seven assists as he torched the Dons for at least 30 points for the second time this season. He scored 35 last month at San Francisco.
"He's a really, really focused individual," Gonzaga Coach Mark Few said of Williams-Goss, who made 10 of 14 shots. "He doesn't leave anything to chance."
Wisconsin (21-5, 10-3) has lost consecutive games for the first time this season, dropping the Badgers into a three-way tie atop the Big Ten standings with No. 16
at No. 22 Saint Mary's 81,