Florida and Duke lead the 2027 national title market as co-favorites with the strongest implied probabilities, driven by elite frontcourt retention and portal additions that position both programs as preseason frontrunners. Florida returns its championship-caliber core of Thomas Haugh, Alex Condon, and Rueben Chinyelu alongside guard depth, while Duke blends experienced returnees like Patrick Ngongba and Caleb Foster with high-impact transfers such as John Blackwell and a top recruiting class under Jon Scheyer. The tight clustering of odds reflects widespread roster reloading across contenders including Illinois, UConn, and Michigan State, where transfer portal activity, fifth-year eligibility rulings, and coaching continuity have kept multiple teams in realistic contention for the title.