The One Drop Foundation is an international non-profit organization, created by Cirque du Soleil founder Guy Laliberté, that works to ensure unconditional access to safe water and sanitation in regions facing the most extreme barriers worldwide[[1]].

Canadian entrepreneur Guy Laliberté started the Big One for One Drop in 2012[2] as a No-Limit Hold 'em event hosted at the World Series of Poker.

Chinese Canadian businessman Elton Tsang won the event for €11,111,111, defeating Anatoliy Gurtovoy of Russia heads up.

In December 2023, the fifth edition of the Big One for One Drop was held at the WPT® World Championship at the Wynn Las Vegas.

[10] In 2013, Anthony Gregg won the $111,111 buy-in High Roller event, defeating Chris Klodnicki heads up and earning $4,830,619.

[11] Jonathan Duhamel (2015), Fedor Holz (2016) and Doug Polk (2017) were the subsequent winners of the High Roller for One Drop tournaments.