I am not a lawyer, but I am told that a money match-up between two players is no more gambling than entering a tournament and putting up your entry fee. "Gambling" is what is done by the railbirds who bet on an outcome that they cannot influence.
If money matches, where players put up their own money in an effort to earn a payday, is gambling, then every commission-based salesman is a gambler. Using your skills to earn an income is hardly gambling.
Jerry, I think this is true in most states.