Atomweight champion Angela "Unstoppable" Lee and Japanese veteran Mei Yamaguchi fought another closely contested main event before a sellout crowd of 12,000 during a ONE Championship at Singapore Indoor Stadium.

At the end of the fight, the winner was the same as two years previously, when Lee captured the inaugural championship. Lee remained unbeaten in her career (9-0) after a 3-0 decision.

It was certainly a discouraging result for Yamaguchi, a fighter with a background in karate and Brazilian jiu-jitsu. Although she did not lose her composure, Yamaguchi, who looked to have the momentum in the final two rounds, thought the victory belonged to her this time.