The Big One for One Drop is a $1,000,000 buy-in No Limit Texas hold 'em tournament hosted at the World Series of Poker (WSOP). Added in 2012, it became the highest buy-in poker tournament in history as well as the largest single payout offered. The event is known for its charitable contributions, as $111,111 or €111,111 of each player's buy in is donated to the One Drop Foundation, an international non-profit organization created by Cirque du Soleil founder Guy Laliberté, which focuses on water initiatives.