Series officials planned to announce Thursday that 30 players are committed to participate in the Big One for One Drop starting July 1 in Las Vegas.
That number puts the top prize at $12.3 million, which is more than the $12 million Jamie Gold won in 2006 for beating over 8,700 players at no-limit Texas Hold 'em in the $10,000 buy-in main event.
The final table will air live on ESPN, series spokesman Seth Palansky told The Associated Press. The winner will also earn a specially designed platinum bracelet.
Eight-time gold bracelet winner Erik Seidel has joined the field, along with the chief executives of a private college lender and a stock trading firm.
The field is a mix of high-stakes poker sharks known for their tremendous skills and wealthy businessmen for whom $1 million isn't much to spend. Of the 30 players in the field so far, only 10 are professional poker players.