Greg Allen scored 11 points and Alexis Moore added 10 as visiting Southern California dominated the second half to beat UC Riverside 56-35 Wednesday in the Trojans’ first game without injured forward Dewayne Dedmon.

Aaron Fuller had nine points for the Trojans (4-4), who shot 25-of-47 (53.2 percent) from the field. UC Riverside (2-5) lost at home to a nonconference opponent for the first time in 17 games.

Southern Cal led by just eight at halftime, but Moore’s 3-pointer gave Southern Cal a 49-30 lead with 10:37 remaining and the Trojans outscored UC Riverside 24-11 in the second half.

Phil Martin had 13 points and Kareem Nitito added 11 for UC Riverside, which beat Washington State last Sunday for its first win over a Pac-12 team since 2000.

Dedmon, Southern Cal’s highly touted 7-foot sophomore, will be out four to six weeks with a stress injury in his right foot.