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Aline Seiberth

Aline Seiberth is a Swiss Muay Thai fighter and European WBC champion making her ONE Championship debut.

At a glance
SportMuay Thai Weight classAtomweight Career statusActive

Profile

The story

Aline Seiberth is a 35-year-old Swiss Muay Thai fighter who has been active internationally since the 2010s, including with Enfusion and Muay Thai Mayhem. In February 2025, she defeated Wanfai Kiatniran by knockout at Fairtex Fight, and in October 2025 she won the European WBC Muay Thai flyweight title by defeating Danielle Ellis on points.
In June 2026, she lost to Kim Townsend on points at the Amazing Muay Thai World Festival. On October 2, 2026, she will make her ONE Championship debut against undefeated Thai fighter Duangdawnoi Looksaikongdin in an atomweight Muay Thai bout at The Inner Circle 33 at Lumpinee Stadium.

Results

Performance

WBC Muay Thai European Flyweight Champion (2025); KO victory over Wanfai Kiatniran (Fairtex Fight, 2025); Record: 3-7 (Muay Thai, muaythairecords.com)

Over the years

Timeline

2018: Loss to Amy Pirnie at Enfusion Live 682022: Points loss to Jade Nichols at Muay Thai Mayhem2025: KO victory over Wanfai Kiatniran at Fairtex Fight (February)2025: European WBC Muay Thai flyweight title after victory over Danielle Ellis (October)2026: Points loss to Kim Townsend (June)2026: ONE debut against Duangdawnoi Looksaikongdin at The Inner Circle 33 (October 2)

Relationships

Organizations

ONE Championship
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