Junior hitter Kupono Fey put down a career-high 23 kills, but it was not enough as No. 5 Hawaii was upset by unranked USC tonight in a Mountain Pacific Sports Federation volleyball match in Los Angeles, 25-18, 20-25, 21-25, 26-24, 17-15.

It was the fourth consecutive time that a match between these two teams went to five sets, and the first time the Trojans prevailed. Lucas Yoder had 21 kills and Alex Slaughter 17 for USC (3-11, 3-9 MPSF).

UH senior hitter Siki Zarkovic added 15 kills, his 15th consecutive match in double-figure kills, and freshman opposite Stijn van Tilburg had 11 for the Rainbow Warriors (10-5, 5-5). Junior middle Hendrik Mol was in on nine of Hawaii’s season-high 17 blocks. Senior libero Kolby Kanetake had a match-high 14 digs.

Hawaii had a chance to win it in four, tying it at 24 only to have USC even the match with the final two points. The Warriors led 14-11 in Set 5 but couldn’t close, as the Trojans held off three match points to tie at 14.

Fey’s final kill gave Hawaii one last shot, up 15-14. Yoder tied it with his last kill and Warriors middle Iain McKellar was called for a net violation to end it.

It was the fourth match in five days for the Warriors, who are off until hosting No. 1 Long Beach State on Feb. 24 and 26.