USD won its season-opener while dropping the Hornets to 1-1.
Four Toreros reached double digits in kills, including senior outside hitter Petia Yanchulova, who recorded 13 kills, six service aces and 19 digs. Senior setter Katie Lindquist posted 39 assists.
Senior outside hitter Angela Lewis led the Hornets with 10 kills and 12 digs.
The first day of competition concludes with a 7:30 p.m. contest between host Arizona and Santa Clara.
Sacramento State def. Kent State 3-1 (15-4, 6-15, 15-7, 15-5)
Arizona def. Kent State 3-0 (15-11, 15-8, 15-7)
San Diego def. Sacramento State 3-0 (15-8, 15-8, 15-8)