Brother Rice d. Marist 25-23, 25-9: Mitch Weisler and Joe Pochinskis had six kills each and Dan Dwyer had 16 assists in the win for Brother Rice.
Lincoln-Way East d. Lincoln-Way Central 25-18, 25-23: Nate Royer had 13 kills to lead No. 3 Lincoln-Way East (34-3).
Glenbrook South d. Maine East 25-8, 25-21: Peter Rafalo had five kills and Benny Capalnas had two aces for No.13 Glenbrook South (27-8).
St. Rita d. Riverside-Brookfield 25-19, 25-18: John Johnson's 18 kills led the way for St. Rita.
Mount Carmel d. Reavis 25-16, 25-22: Bob Walsh (11 kills), Matt Walsh (six kills) and Dominic Dilla (24 assists) led Mount Carmel.
WW South d. St. Francis 25-12, 25-15: Thomas Jaeschke had 10 kills, four digs and two blocks to help keep WW South (37-0) undefeated.
Barrington d. Deerfield 25-11, 25-7: Tommy Leonard had seven kills, Charlie Spry had six kills and Taylor Ganzer had 22 assists in the win for No. 8 Barrington.