#1 BYU stumbled in the second set, but rebounded to knock off San Diego in four sets Friday night.
Colorado State snapped a two-match losing streak Friday night with a sweep of its instate rival, Air Force.
Gonzaga highlighted WCC play with a five-set win over Santa Clara. Elsewhere, Pepperdine won in four while Portland and Loyola Marymount earned sweeps.
#24 Iowa survives Northwestern in five sets while #12 Penn State picks up a huge win at #16 Michigan Sunday afternoon.
Tulsa stunned Wichita State in five sets to give Shockers their first loss in the American Conference.
#6 Texas swept West Virginia on the road while TCU won in Manhattan in four sets, keeping the Wildcats winless in Big 12 play.
#1 BYU, Pepperdine, San Diego, and Loyola Marymount all pick up sweeps Saturday afternoon.
Colorado State beat San Diego State in four sets to remain in first in the Mountain West while Boise State swept Nevada, and Fresno State and Utah State picked up four set victories Thursday night.
West Virginia and Texas picked up conference sweeps Wednesday night while Kansas survived a five set thriller on the road at Oklahoma.
Valparaiso won its 10th straight match while Northern Iowa, Loyola and Drake also picked up wins in the Missouri Valley Conference Monday night.