Per NCAA:
The NCAA Division I Men’s Basketball Committee announced today the relocation of 13 predetermined preliminary round sites for the 2021 Division I Men’s Basketball Championship.
In recent weeks, the Division I Men’s Basketball Committee has engaged in a thorough contingency planning process to determine the most effective way to conduct a safe and healthy March Madness for all participants for the 2021 championship. Through these discussions, it became apparent to the committee that conducting the championship at 13 preliminary round sites spread throughout the country would be very difficult to execute in the current pandemic environment.