from each buy-in) went to Laliberté's charity, the One Drop Foundation, and the WSOP waived its normal 10% rake of the entry fees. At the time of the original announcement, 15 of the maximum 48 seats had been taken. By early December 2011, the field size had increased to 22, the minimum required for an official bracelet tournament. Among those who committed early to the event were Johnny Chan, Daniel Negreanu, Jonathan Duhamel, Tom Dwan, Laliberté, billionaire businessman Phil Ruffin and Erik Seidel. On April 12, 2012, the WSOP announced that 30 players had committed to the tournament, which brought the first prize to $12.3 million, exceeding the record amount won by Jamie Gold. In the end, all 48 seats were filled, resulting in a first prize of $18.3 million. Poker professional Antonio Esfandiari won the event, also receiving a special platinum WSOP bracelet. Main Event Since 1972, the Main Event of the WSOP has been the $10,000 buy-in no-limit Texas Hold 'em (NLHE) tournament (in 1971 the buy-in was $5,000 and the inaugural 1970 event was an invitational with winner determined by a vote from the players). Winners of the event not only get the largest prize of the tournament and a gold bracelet, but additionally their picture is placed in the Gallery of Champions at Binion's. The winner of the Main Event has traditionally been given the unofficial title of World Champion. However, some believe that no-limit hold 'em is not the optimal structure for determining a champion poker player. In 2002, Daniel Negreanu argued that the Main Event should switch to pot-limit hold 'em, believing that pot-limit required a more complete set of poker skills than no-limit, although he admitted that such a change would likely never be made. However, after the $50,000 H.O.R.S.E./Poker Players Championship event was added, many of the game's top professionals, including Negreanu, have since stated that this tournament ultimately decides the world's best player. The $50,000 buy-in, being five times larger than the buy-in for the Main Event, has thus far tended to deter amateurs from playing in this event, and the variety of games played require a broader knowledge of poker. The first $50,000 event, conducted as a H.O.R.S.E. tournament, was won by Chip Reese in 2006. In 2010, the $50,000 event changed from H.O.R.S.E. to an "8-game" format, adding no-limit hold 'em, pot-limit Omaha, and 2–7 triple draw to the