Montini 61, Clemente 47:
Tyshawn Johnson and Matt Brachmann each scored 15 points for the No. 14 Broncos (16-8), who advance to Tuesday's Class 3A Marshall regional semifinals to face the second-seeded Commandos. Rich Bodee tallied 13 points.
Fenton 79, Noble Street Charter/Pritzker 46:
The 15th-seeded Bison (3-24) cruised into the Class 3A Fenton regional semifinals behind 16 points from Colin Wallace. Fenton advances to play top-seeded North Chicago on Tuesday. Dylan Fritz added 13 points for the Bison, who led 39-18 at the half.
Hoffman Estates 72, Wheaton North 68:
Sam Otto scored a team-high 25 points for the 16th-seeded Falcons (8-19), but Hoffman Estates prevailed in the Class 4A Proviso East regional quarterfinals.
Proviso West 66, Addison Trail 58:
The 19th-seeded Blazers (7-21) fell in the Class 4A Glenbard West regional quarterfinals despite 20 points from Vince Beltrano. Varinder Kalsi added 14 points and Jordan Garcia scored 10 points.
Hinsdale South 47, Downers North 32:
The No. 13 Hornets (15-11), who play No. 4 West Aurora on Tuesday, rolled to victory in the Class 4A Oswego regional quarterfinals. Phil George led the way with 17 points while Brock Benson added 14 points. Nick Norton and Rob Mahlke scored 10 points apiece for Downers North (5-22).