ONE Friday Fights 30: Saemapetch vs. Kaonar: ONE Friday Fights 30: Saemapetch vs. Kaonar was a combat sports event produced by ONE Championship that took place on August 25, 2023, at Lumpinee Boxing Stadium in Bangkok, Thailand. A bantamweight muay thai bout between former title challenger Saemapetch Fairtex and Lumpinee Stadium world champion Kaonar Sor.Jor.Tongprajin served as the event headliner.