Push sport betting as much as possible and this is what you get. All sports at all levels probably have people fixing games/results.
The recent trend of athletes getting arrested for gambling is not related to directly fixing the outcome, it’s fixing prop bets on individual statistics.
In the NBA you can bet on the over/under on things like a single player’s points, rebounds, assists, etc.
In baseball some sportsbooks will take action on whether a pitcher throws a ball or strike on his first pitch. A pitcher can fix that; it would be very difficult to know if the pitch was intentionally thrown a certain way.