The UNLV teams with Larry Johnson - Anderson Hunt and 2 teammates were seen in the Hottub with a guy that has been accused of fixing games. They would be favored by 25 - 30 points most of time you could just watch the games and see at the end what side they were on. This scandal eventually led to Tarks resignation. Sure it happens mostly at the lower divisions and generally they target when a team is a heavy favorite so it does not effect the outcome of the game only the outcome of the spread.