ONE Championship 156: Smilla Sundell becomes youngest title-holder in history, dominating Jackie Buntan to win strawweight Muay Thai belt
- The 17-year-old Swede leaves Filipino-American Buntan badly bruised in Singapore en route to unanimous decision
- ‘I don’t have words for it,’ tearful Sundell says after picking up US$50,000 performance bonus from ONE boss Chatri

Smilla Sundell became the youngest title-holder in ONE Championship history after a dominant unanimous decision over Jackie Buntan on Friday night in Singapore.
The Asian martial arts promotion’s inaugural strawweight Muay Thai champion at just 17 years old, Sundell left the game Filipino-American badly bruised, with her left eye almost swollen shut, and two hematomas on her forehead.
Based out of the famed Fairtex gym in Pattaya, Thailand, the Swedish prodigy was lost for words and overcome with emotion after being told she had picked up a US$50,000 performance bonus for her efforts at Singapore Indoor Stadium.
“It feels great, I’m so happy right now – it’s my biggest dream coming true,” Sundell told ONE commentator Mitch Chilson in a post-fight interview.
“I don’t have words for it,” she added through tears. “Thank you. Oh my god. Thank you, thank you.”