ONE Fight Night 46: Hemetsberger vs. Diachkova was a combat sports event produced by ONE Championship that took place on August 15, 2026, at Lumpinee Boxing Stadium in Bangkok, Thailand. A ONE Women's Strawweight Muay Thai World Championship bout between current champion (also current ONE Women's Strawweight Kickboxing World Champion) Stella Hemetsberger and Natalia Diachkova headlined the event.
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