Every verified December basketball tournament we track in Indiana — high school and post-grad. All 3 events below, sorted alphabetically.
Each card shows the host city, exact dates if confirmed, division (HS or post-grad), and where to register. Want a wider net? See every tournament in Indiana, or browse the full national calendar.
First played in 1916, ran through 1972, restarted in 2000. Sixteen teams, four days starting the day after Christmas, split between the two Terre Haute high school gyms. Sponsored by First Financial Bank.
Tournament details →Run by the Indiana Basketball Hall of Fame at the New Castle Fieldhouse — at 8,424 seats the largest high school fieldhouse in the country. A flagship in-season high school basketball event in Indiana, with boys and girls games over the holiday break.
Tournament details →Early-December showcase hosted at Bill Green Arena — Marion's 7,500-seat high school gym, one of the historic large-capacity Indiana fieldhouses. Run by Marion Project Graduation as a fundraiser, the event is built around the Marion Giants tradition.
Tournament details →National Prep Tournament · March 6–8, 2026
National Prep Tournament in Fort Walton Beach, Florida takes both high school and post-grad programs. Applications stay open through October 31. If you want a competitive early-March slot without invitation-only barriers, this is the one to apply for.
Apply for the National Prep Tournament →