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The General

Jonathan Haggerty

Jonathan Haggerty grew up on the streets of South London and fought his way from an eight-year-old debutant to the first Englishman ever to win a world title at ONE Championship. Today, he remains the undisputed bantamweight king of kickboxing.

At a glance
SportMuay Thai Born18-02-1997 Weight classBantamweight Kickboxing; formerly Bantamweight and Flyweight Muay Thai Career statusActive

Profile

The story

Jonathan Haggerty was born on February 18, 1997, and grew up on Walworth Road in London with a younger brother and two younger sisters. His father, an active Muay Thai practitioner himself, introduced him to the sport at the age of seven, and by the time he was eight, the young Haggerty had already stepped into the ring for his first official bout. That early start forged a fighter with an unusually vast amount of ring experience and an instinctive sense of timing.
Through the British amateur circuit and professional bouts for organizations including WBC Muaythai, where he won the International Super Featherweight title in 2018, Haggerty built a reputation as one of the sharpest technicians of his generation. He made his ONE Championship debut in January 2019 and, within a few months, defeated Sam-A Gaiyanghadao on May 4, 2019, to win the ONE Flyweight Muay Thai World Championship. This made him the first Briton ever to win a world title in the organization.

After two defeats to Rodtang Jitmuangnon in 2019 and 2020, he lost the title but used the setback to refine his game. In 2023, he defeated Nong-O Gaiyanghadao by first-round knockout to win the ONE Bantamweight Muay Thai World Championship. On November 4, he also won the ONE Bantamweight Kickboxing World Championship by knocking out Fabrício Andrade.

Haggerty defended his Muay Thai title against Felipe Lobo in February 2024 but lost the belt to Superlek in September 2024. His kickboxing throne remained untouched. He defended the title against Wei Rui in February 2025 and again against Yuki Yoza on April 29, 2026, during the inaugural ONE Samurai 1 event in Tokyo.

As of September 2026, Jonathan “The General” Haggerty remains the reigning ONE Bantamweight Kickboxing World Champion. He trains at Team Underground and Knowlesy Academy in Kent under Lyndon Knowles and Christian Knowles.

Jonathan Haggerty grew up on Walworth Road in London. His father introduced him to Muay Thai at the age of seven, and Haggerty made his official ring debut at just eight years old.

Haggerty made his ONE Championship debut in January 2019. On May 4, 2019, he defeated Sam-A Gaiyanghadao to win the ONE Flyweight Muay Thai World Championship, becoming the first British fighter ever to win a world title in the organization.

In 2023, Haggerty won the ONE Bantamweight Muay Thai title against Nong-O and the ONE Bantamweight Kickboxing title against Fabrício Andrade. After losing his Muay Thai title to Superlek, he retained his kickboxing title. He defended that title again in 2025 and 2026.

In the ring

Fighting style

Haggerty fights with a sharp, technical orthodox style centered on timing and distance control. He combines fast, precise combinations with an excellent sense of counters and accelerates at the right moment to decide a fight within seconds. His Muay Thai foundation also gives him a broad clinch and knee arsenal, while his kickboxing provides explosive hand speed.

Results

Performance

ONE Bantamweight Kickboxing World Champion since November 2023, with multiple successful defenses; former ONE Bantamweight Muay Thai World Champion from 2023 to 2024; former ONE Flyweight Muay Thai World Champion in 2019; first English world champion in ONE Championship history; WBC Muaythai International Super Featherweight Champion in 2018; multiple Performance of the Night bonuses; nominated for Fight of the Year against Felipe Lobo in 2024.

Over the years

Timeline

1997: Born on February 18 in London, United Kingdom.

2004: Began Muay Thai at the age of seven under the guidance of his father.

2005: First official fight at the age of eight.

2014: Professional debut.

2018: Won the WBC Muaythai International Super Featherweight title.

2019: Debuted in ONE Championship and won the ONE Flyweight Muay Thai World Championship against Sam-A Gaiyanghadao in May.

2019-2020: Lost the title twice to Rodtang Jitmuangnon.

2023: Won the ONE Bantamweight Muay Thai title in April and the ONE Bantamweight Kickboxing title in November.

2024: Defended the Muay Thai title against Felipe Lobo, but lost it to Superlek in September.

2025: Defended the kickboxing title against Wei Rui.

2026: Defends the kickboxing title against Yuki Yoza on April 29 at ONE Samurai 1.

Influence

Legacy

As the first Englishman to win a world title in ONE Championship, Haggerty paved the way for a whole generation of British martial artists heading to Asia to compete at the highest level. His combination of Muay Thai depth and kickboxing explosiveness made him one of the few true two-sport champions the organization has ever known. His resilience after defeats to Rodtang and Superlek makes him a textbook example of perseverance.

Relationships

Organizations

ONE Championship
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