Illinois Boys High School Basketball State Champions & Runners-Up - March 17, 2026

The 2026 Illinois boys basketball season has come to an end, and champions have been crowned across each classification.
After months of competition, the teams listed below rose above the field to capture state titles in their respective divisions.
High School On SIhas the completed brackets along with the champions and runners-up for every classification.
Take a look below to see the teams that finished on top and the full path each squad took to reach the state finals.
Class 4A
Champions: Marist RedHawks
Runner-Up: Benet Academy
Class 3A
Champions: East St. Louis Flyers
Runner-Up: Deerfield Warriors
Class 2A
Champions: Manuel Rams
Runner-Up: Quincy Notre Dame Raiders
Class 1A
Champions: Chicago Marshall Commandos
Runner-Up: Goreville Blackcats
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Brady Twombly grew up playing every sport he could before sticking with basketball. He played one year of college basketball at Northern Arizona University and then he transferred to Boise State University where he graduated with a degree in Business Administration. He has been covering high school sports at SBLive since the beginning of 2023, working mostly on the data operations team.