Stamp Fairtex

Nadthawan Panthong (Thai: ณัฐวรรณ พานทอง, born November 16, 1997), known professionally as Stamp Fairtex (Thai: แสตมป์ แฟร์เท็กซ์), is a Thai professional mixed martial artist, Muay Thai fighter, and kickboxer. She is currently signed to ONE Championship, where she is the former ONE Women's Atomweight MMA World Champion. She is the organization's first three-sport world champion, having also held the ONE Atomweight Muay Thai World Championship and ONE Atomweight Kickboxing World Championship. As of September 22, 2026, Fairtex is ranked #3 in the ONE Women's Atomweight Muay Thai rankings. Initially competing in the all-striking ONE Super Series, Stamp made her mixed martial arts (MMA) debut on October 11, 2018. She won the 2021 ONE Women's MMA Atomweight World Grand Prix. Her ring name is inspired by the Fairtex Gym in Pattaya where she trained from age 18.

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