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.
Ian Johns Ian Johns is an American professional poker player born in Seattle, Washington and now living in Newcastle, Washington. He has won three bracelets at the World Series of Poker. He won his first bracelet in 2006 and won two bracelets in 2016.