Rambolek was born into a farming family in Chaiyaphum Province, in Thailand’s northeastern Isan region, an area that has been the birthplace of countless Muay Thai fighters for decades. He began training at a young age—according to ONE Championship’s own profile, recreationally from the age of seven—and fought his first bout at a local temple fair. Despite his modest background and relatively small stature (173 cm, around 65 kg), he quickly developed a reputation as an aggressive, tireless fighter with exceptional willpower and a forward-moving style.
At the age of fifteen, Rambolek moved to Bangkok in search of greater opportunities in the sport. Five years later, he captured the 140-pound title at the renowned Channel 7 Boxing Stadium, a result that attracted the attention of ONE Championship. His ONE debut followed in 2023, where he immediately impressed with a second-round knockout. Fighting out of the Kiatpetch camp in Bangkok, he built an impressive winning streak through ONE Friday Fights, including victories over Theeradet Chor.Hapayak, Dmitrii Kovtun, Parham Gheirati, and Abdulla Dayakaev. He became the first fighter to earn a US$100,000 contract through the ONE Friday Fights platform.
The breakthrough came on March 20, 2026, when Rambolek faced reigning and hitherto dominant world champion Nabil Anane as the underdog. After scoring two knockdowns, Rambolek won by unanimous decision and captured the ONE Bantamweight Muay Thai World Championship. He said emotionally afterward that when the belt was placed over his shoulder, he was speechless with happiness.
On September 10, 2026, Rambolek missed the bantamweight limit by 0.6 pounds during the official weigh-in for his first title defense against Yod-IQ Or Pimolsri. Under ONE Championship rules, he therefore automatically lost his title. The fight will go ahead on September 11, 2026, at a catchweight of 145.6 lbs, but only Yod-IQ can win the vacant world title with a victory; Rambolek cannot reclaim the title even if he wins.
Thailand
