How many times did the author of Super/System win the world series of poker?
Doyle Brunson Doyle F. Brunson (born August 10, 1933) is an American poker player who has played professionally for over 50 years. He is a two-time World Series of Poker (WSOP) Main Event champion, a Poker Hall of Fame inductee, and the author of several books on poker.
Ryan Riess Ryan Riess (born June 21, 1990) is an American professional poker player best known for winning the 2013 World Series of Poker Main Event.