02 / FIGHTBASE FIGHTERS

Marie McManamon

British Muay Thai fighter from The Knowlesy Academy who challenged for the atomweight world title in her ONE debut.

At a glance
SportMuay Thai Weight classAtomweight Career statusActive

Profile

The story

Marie McManamon is a 36-year-old Muay Thai fighter who competes for England and Ireland. She trains at The Knowlesy Academy in London, the gym where former two-time ONE world champion Jonathan Haggerty also developed. She is regarded as one of the United Kingdom’s best female Muay Thai fighters and has won titles in her career at Victory League and Roar Fighting Championship.
In 2025, she made her ONE debut in a title fight for the atomweight Muay Thai world championship against Allycia Hellen Rodrigues (ONE Fight Night 29), which she lost by fourth-round TKO. She then lost a decision to Selina Flores (ONE Fight Night 36). At ONE Fight Night 48 in Bangkok, she is seeking her first ONE victory against Yu Yau Pui.

In the ring

Fighting style

Known for her seemingly inexhaustible stamina and fast, whipping kicks.

Results

Performance

Titles in Victory League and Roar Fighting Championship; ONE atomweight Muay Thai title contender (2025); Record: 0-2 (ONE)

Over the years

Timeline

2025: ONE debut, loses title fight by TKO (round 4) to Allycia Hellen Rodrigues (ONE Fight Night 29, March)2025: Loses by decision to Selina Flores (ONE Fight Night 36, October)2026: Scheduled to face Yu Yau Pui at ONE Fight Night 48 (Oct 3)

Relationships

Organizations

ONE Championship
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