Stamp started practicing Muay Thai at the age of 5 in order to avoid bullying in school. A year later, she would win her first fight by KO via knees. She became a Muay Thai champion of a local stadium and a two-division Northeastern Thailand champion. At 18, she moved to the Fairtex Gym in Pattaya, where she would also begin training in Brazilian jiu-jitsu.
Muay Thai & Kickboxing career
In her ONE Championship debut at on October 6, 2018, she challenged Kai Ting Chuang for the ONE Atomweight Kickboxing World Championship. Stamp would win by unanimous decision, claiming her first ONE world title. She was next scheduled to face Janet Todd for the inaugural ONE Atomweight Muay Thai World Championship at on February 22, 2019. Stamp won the fight by unanimous decision to claim the ONE Atomweight Muay Thai World Championship and become ONE Championship's first two-sport world champion. Stamp Fairtex would defend her ONE Atomweight Muay Thai World Championship against Alma Juniku at on June 15, 2019. She retained her title by a unanimous decision victory. After three straight mixed martial arts matches, Stamp will face Janet Todd for the second time to defend the ONE Atomweight Kickboxing World Championship at on February 28, 2020. Stamp lost the title to Todd via a closely contested split decision, marking her first-ever loss in ONE Championship.
After being scouted by Rich Franklin, Stamp made her mixed martial arts debut on ONE Warrior Series 2 on July 19, 2018. She knocked out Rashi Shinde with a head kick in just 19 seconds of the first round. The victory earned her a contract with ONE Championship. Stamp announced her intentions to compete in mixed martial arts in ONE Championship, with the goal of becoming a ONE World Champion in MMA as well. She made her ONE Championship promotional MMA debut against Asha Roka at on August 16, 2019. Stamp won by submission at 1 minute and 29 seconds of the third round via rear naked choke. Stamp is next expected to face Bi Nguyen at on November 8, 2019. After dominating all three rounds with her Muay Thai-based striking, she would go on to win by unanimous decision. Stamp next faced Puja Tomar at in the first ONE event of the year on January 10, 2020. Stamp went on to defeat Tomar by TKO at 4 minutes and 27 seconds of the first round via ground and pound. Leading up to her fight with Tomar, Stamp had voiced her interest in facing Mei Yamaguchi, whom she said possesses high-class wrestling skills, in order to test her own skill level. She hopes a fight with Yamaguchi will help solidify her all-round MMA skills before she potentially challenges for a ONE World Title. "My stand-up game is really good. It is strong, but my ground game still needs a lot of work," Stamp said, "I need to improve my ground game and get stronger because Angela Lee is good all-around." Stamp is scheduled to face Sunisa Srisen at on July 31, 2020.
