ONE Fight Night 31: Kongthoranee vs. Nong-O 2 was a combat sports event produced by ONE Championship that took place on May 3, 2025, at Lumpinee Boxing Stadium in Bangkok, Thailand. A flyweight Muay Thai rematch between Kongthoranee Sor.Sommai and former ONE Bantamweight Muay Thai World Champion Nong-O Hama headlined the event. The pairing previously to met at ONE Fight Night 28 in February 2025, which Kongthoranee won by split decision.

ONE Friday Fights 136: Petkhaokradong vs. Kelat was a combat sports event produced by ONE Championship that took place on December 12, 2025, at Lumpinee Boxing Stadium in Bangkok, Thailand. A flyweight Kickboxing bout between Panpayak Jitmuangnon and Zhao Chongyang was scheduled to headline the event, but the fight was cancelled due to Panpayak having an illness. Therefore the Muay thai bout between Petkhaokradong Lukjaomaesaithong and Ali Kelat headlined the event.