Youthbasketball123 is a website designed to provide ideas, drills by grade, books, teaching tools, basketball jokes, guest blogs, basketball quotes, and so much. To determine the biggest upset, we will subtract the lower seed from the highest seed. Division 1 Sweet 16 Final Four Division 1 (38 teams) Division 2 (43 teams) Division 3 (42 teams) Division 4 (50 teams) Division 5 (44 teams)