There were 4 games for Illinois Class 4A basketball on Sun, 12/5/2021. The featured games were by Illinois Class 4A top ranked teams #1 Glenbard West (Glen Ellyn, IL) vs. #2 Glenbrook South (Glenview, IL). The first game, Maine South (Park Ridge, IL) vs. Saint Viator (Arlington Heights, IL), started at 12p.