It's no surprise Cooper Flagg and the Duke Blue Devils are a popular public wager to win March Madness this season. After all, Duke is the consensus favorite to win the national championship at sportsbooks — and the current +325 co-favorite with Florida at BetMGM — and the team with the most wagers and total dollars wagered at multiple sportsbooks to cut down the nets.
But that liability just grew a little bit higher for BetMGM, as it reported Thursday morning that one bettor wagered $500,000 on Duke to win the 2025 title at +350 odds.