What would be some good prop bets on the WSOP? They can be fun, as long as the results are conclusive - so things like "how many blow-ups will Helmuth have" or "who has the best cleavage", while fun, are not conclusively grade-able.
A couple of ideas:
Who will have the most lifetime WSOP bracelets after this year
Over/Under on total Main Event runners
others?

News