LOS ANGELES — Oregon scored four runs in the first inning and went on to defeat USC 10-7 Saturday afternoon in a Pac-12 Conference baseball game.

Sam Novitske and Tanner Smith each walked to open the game before Spencer Steer singled in Novitske. Gabe Matthews hit a sacrifice fly that scored Smith.

Jonny DeLuca reached on an error that allowed Steer to score. DeLuca later scored to put Oregon (27-25, 10-16 Pac-12) ahead 4-0.

The Trojans scored in the bottom of the first before Oregon answered with a run in the second when Kyle Froemke walked and Novitske singled before Smith walked to load the bases. Steer was hit by a pitch to bring in a run.

USC closed within 5-3 in the second before Oregon scored twice in the fourth after Novitske singled and scored on a triple by Smith. Steer brought in Smith on a ground out.

The Trojans got a run in the fifth, but Jakob Goldfarb hit a three-run homer in the seventh for Oregon. DeLuca singled with two outs and Evan Williams walked before Goldfarb homered.

USC closed within 10-7 with three runs in the eighth inning off Nico Tellache. Ryne Nelson finished off the eighth inning and pitched the ninth to earn a save.

Oregon starter Cullen Kafka allowed one earned run in two innings before Brett Walker came out of the bullpen to give up a run in three innings.

Novitske had two hits while Steer and Goldfarb each drove in three runs.