CardPlayer.com | Australia's Michael Addamo Wins World Series of Poker Marathon Event CardPlayer.com The 2018 $2,620 buy-in Marathon event at the World Series of Poker was a five-day grind, with players starting the tournament with 26,200 in chips and competing with 100-minute levels. This year's contest drew 1,637 entries, creating a prize pool of ... Otis Gardner: Getting ready for the World Series of Poker |