Reigning ONE Light Heavyweight Kickboxing World Champion and ONE Heavyweight Muay Thai World ChampionRoman Kryklia has been a martial artist ever since he was just 6 years old.

Growing up in Krasnograd in eastern Ukraine, he started with karate and studied it for over a decade before adding boxing, kickboxing, and Muay Thai to his training. A prolific competitor even then, he became a karate and kickboxing champion at every level all the way through to university.

With over 50 professional contests to his name, Kryklia has competed all over Europe and Asia, claiming various prestigious accolades, including the KLF Heavyweight Kickboxing World Title. He is known for his physical endurance, having been victorious in a number of one-night tournaments, with his unique combination of height, reach, and speed leading him to knockouts in more than half of his wins.

Kryklia has been steadily ranked as one of the best in the world over the past few years, and he took the next steps in his illustrious career by claiming the inaugural ONE Light Heavyweight Kickboxing World Championship in November 2019 and the inaugural ONE Heavyweight Muay Thai World Title in December 2023.

The current two-sport king has also defended the light heavyweight kickboxing belt two times while adding a silver belt to his collection when he won the 2022 ONE Heavyweight Kickboxing World Grand Prix Championship.