Oviedo’s unbeaten volleyball run ended Saturday with a 25-18, 25-18 loss to Mater Dei of California at the 72-team Nike Tournament of Champions in Phoenix. After losing to Corona del Sol or Arizona, the Lions (15-2), who went 5-2 in the tournament, defeated defending state champion Cox Mill, N.C., 25-23-, 15-25, 15-2 for seventh place.