Angela Lee had no trouble defending her atomweight title in the main event of ONE Championship: Unstoppable Dreams, topping Mei Yamaguchi inside the Singapore Indoor Stadium.

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Lee, who previously bested Yamaguchi for the inaugural title, scored a decision.

“It’s a huge night for me and my family. It’s not easy to do what we’re doing inside the cage,” Lee said. “Martial arts fans and their love for the sport are the reason why we’re fighting. This is for you guys. Props to Mei Yamaguchi. She’s an amazing and very talented competitor. Thank you for the opportunity.”

In the co-main event, Sam-A Gaiyanghadao exhibited his stellar and fearsome form against Dutch kickboxer Sergio Wielzen to become the first-ever ONE Super Series Muay Thai flyweight champion.

Banking on his trademark power to dominate from start to finish, Sam-A hammered hard elbows to score a knockdown in the fourth round. Reeling in excruciating pain, Wielzen failed to beat the count of ten, compelling the referee to wave off the bout and declare Sam-A the winner via knockout.

Martin Nguyen defended the ONE featherweight title, defeating Singaporean rival Christian Lee by way of closely-contested split decision.

Neither would give each other any quarter for five whole rounds in the championship clash. Although Nguyen would have his moments on his feet in the first two rounds, most of the action took place in the grappling arena. Lee enjoyed a tremendous advantage on the ground, negating his opponent’s signature firepower.

Determined to keep the gold-plated strap around his waist, Nguyen bombarded Lee with a barrage of solid punches midway of the third round. With lesser activity from Lee, Nguyen continued to press the action up to the final round to emerge victorious on two of the three judges’ scorecards, earning him the split decision win.

Complete results are below:

ONE Women’s Atomweight World Championship bout: Angela Lee defeats Mei Yamaguchi by Unanimous Decision (UD) after 5 rounds

ONE Super Series Muay Thai Flyweight World Championship bout: Sam-A Gaiyanghadao defeats Sergio Wielzen by Knockout (KO) at 2:47 minutes of round 4

ONE Featherweight World Championship bout: Martin Nguyen defeats Christian Lee by Split Decision (SD) after 5 rounds

ONE Super Series Kickboxing catchweight bout (72.5kg): Yodsanklai IWE Fairtex defeats Chris Ngimbi by Unanimous Decision (UD) after 3 rounds

Lightweight bout: Shinya Aoki defeats by Rasul Yakhyaev Submission (Triangle Choke) at 3:15 minutes of round 1

Lightweight bout: Eduard Folayang defeats Kharun Atlangeriev by Unanimous Decision (UD) after 3 rounds

Lightweight bout: Amir Khan defeats Sung Jong Lee by TKO (Strikes) at 3:39 minutes of round 2

ONE Super Series Muay Thai flyweight bout: Singtongnoi Por Telakun defeats Joseph Lasiri by TKO (Strikes) at 2:36 minutes of round 2

Featherweight bout: Xie Chao defeats Meas Meul TKO (Strikes) at 1:10 minutes of round 3

Bantamweight bout: Xie Bin defeats Huang Shi Hao by TKO (Corner Stoppage) at 2:26 minutes of round 2

Bantamweight bout: Sunoto defeats Roel Rosauro by Unanimous Decision (UD) after 3 rounds