Guilherme Kleist is a Brazilian poker player who specialises in Spin & Go tournaments, which he plays online at PokerStars. In August 2025, Kleist was invited to enter the Spin & Go Championship Live at the PokerStars European Poker Tour (EPT) Barcelona festival.
Kleist navigated to the final, where he faced fellow Brazilian Joao Nascimento and Poland's Krystian Lisowski. The trio struck a deal that awarded them €25,000, leaving the remaining €75,000 of the prize pool to be won traditionally. Kleist ultimately came out on top and received a €50,000 top prize plus the €25,000 from the deal.
