Richmond led 29-28 at halftime and the teams deadlocked at 63 when Fordham's Ryan Rhoomes hit a layup at the end of regulation.
With the scored tied at 72 in overtime, Anthony hit a 3-pointer with 13 seconds to play and Williams sank two free throws for a 77-72 lead. Branden Frazier made a layup for Fordham with 1 second to play and time expired.
Former Kentucky guard Ed Davender, the only Wildcat with at least 1,500 points and 400 assists, has died. He was 49.
Guard Naz Mitrou-Long, whose 2015-16 season ended in December due to hip problems, has been granted a hardship waiver for the coming season, Iowa State said.
As the Sooners look to life without superstar Buddy Hield and his sidekicks, it's clear their unseasoned players will need to grow up fast.