This is highly unlikely. Nobody has the magical ability to predict the outcome of sporting events.
> there are gangs influencing the outcomes of the sport events and selling the bets or organizing betting on them. Fraudster bosses, if they are smart, are absolutely getting rich.
This is highly unlikely for most of the things that Americans are gambling on, such as NFL games.
> But you didn't mean those.
It doesn't appear to be what the OP meant.