Top-ranked USC won the doubles points and three singles matches Friday for a 4-1 win over Oregon at the Student Tennis Center.
The Ducks dropped their second straight match in falling to 9-4.
Oregon's only victory came at No. 5 singles where Luke Vandecasteele picked up a 6-3, 6-2 win over Stefan Dostanic.
Top-ranked Daniel Cukierman of USC downed Oregon's Emmanuel Coste 6-1, 6-4 at No. 2 singles and the Trojans' Ryder Jackson downed Jesper Klov-Nilsson 6-4, 6-1 at No. 6 singles. At No. 3 singles, Oregon's Ty Gentry fell 6-3, 6-4 to Riley Smith.
USC's Brandon Holt won the first set over Oregon's Joshua Charlton at No. 1 singles with Charlton up 4-3 in the second set when the Trojans had clinched the team win.
Cukierman and Smith won their doubles set over Charlton and Gentry as did the team of Klov-Nilsson and Mor Bulis over Oregon's Ryder Jackson and Riki Oshima to give USC the doubles point.