Jack Sinclair is a British poker player and 2018 WSOP Europe Main Event champion. The previous year, Sinclair finished eighth in the 2017 WSOP Main Event for $1,200,000.
Sinclair also won the 2017 German Poker Championship Super High Roller, and picked up an Aussie Millions ring in 2018.
In 2022, he finished second to Rick van Brugge in the largest live poker tournament in EPT history, the Estrellas Poker Tour Main Event, for €377,120. A few months later, he followed that up by finishing runner-up again in the EPT London Main Event.