Tunde Onakoya

Tunde Onakoya is a Nigerian chess player, founder of the non-profit Chess in Slums Africa, and Guinness World Record holder. On April 20, 2024, Onakoya played a 60-hour chess marathon against NM Shawn Martinez (and others), breaking the previous record of 56 hours, set in 2018. They held their record-setting match in Times Square, New York City and raised $110,000 for Chess in Slums Africa.

That record was never officially recognized, but Onakoya and Martinez ran a 64-hour marathon from April 17 to April 20, 2025, one which was validated by Guinness World Records.

We did the impossible and gave the world something new to believe in.
Official record holders of the Longest Chess Marathon for 64 hours.

We did it❤️🇳🇬🇵🇷 pic.twitter.com/ocIuBtg9rB

— Tunde Onakoya (@Tunde_OD) April 20, 2025