ONE Friday Fights 42: Kaonar vs. Lobo was a combat sports event produced by ONE Championship that took place on November 24, 2023, at Lumpinee Boxing Stadium in Bangkok, Thailand. A flyweight muay thai bout between Nabil Anane and Yamin Or.Primonsri was expected to headline the event. However, Yamin withdrew due to illness. As a results, a 141 pounds catchweight muay thai bout between Kaonar Sor.Jor.Tongprajin and Julio Lobo promoted to main event status.