Gambling needs to get rid of prop bets on individuals, particularly in college. This was not as developed when gambling was legalized for many states. You had fantasy leagues where that might come into play, but now there is real money that can affect each of those transactions.

The result of the first pitch thrown to the 6th hitter is too easy to manipulate. Same with a person having 10 points or less, faking an injury like Terry Rozier's case being a prime example, or SJSU and Fresno both having to kick players off the team.

https://www.espn.com/mens-college-basketball/story/_/id/46791757/ncaa-gambling-investigation-college-basketball