If your user name appeared to be a real first and last name (fictitious or not), your user name has been changed to just your first name. As of May 1, 2018 no full real names are allowed as user names.
I don't bet on sports or anything else. BUT there is a guy at work who bets on horse races and he's won quite often. Last time he won over $1k. Not sure how he's doing all this winning but good for him.