Williams, a senior, was just 5 of 13 from the field but made two 3-pointers and added four steals. Malcolm Armstead also scored 16 for the Shockers (5-0), who will face the winner of the Iowa-Western Kentucky game, which tipped off later Tuesday, in Wednesday's Riviera Division final.
Wichita State wasn't much better, hitting 43 percent of its shots and 56 percent of its free throws. But the Shockers never trailed, leading by as many as 13 in the second half.
The game was the first meeting between the schools since 1988.