Jonathan Haggerty


Jonathan Haggerty is a British Muay Thai fighter fighting out of the Knowlesy Academy under Christian Knowles. He is currently signed to ONE Championship.
Haggerty is a former ONE Flyweight Muay Thai World Champion.

Early Life

Haggerty grew up in a tough part of Walworth Road, London. He learned Muay Thai from his father at the age of 7, and he started competing as an amateur at the age of 12.

ONE Championship

Haggerty made his ONE Championship debut in January 2019 and defeated Joseph Lasiri via unanimous decision.
On 4 May 2019 he defeated the legendary Sam-A Gaiyanghadao at to claim the ONE Flyweight Muay Thai World Championship.
Immediately after receiving the belt he called out Thai boxing phenom Rodtang Jitmuangnon who he will be defending his belt against next. On 2 August 2019 he lost the ONE Flyweight Muay Thai World Championship to Jitmuangnon in his first title defense at.
Jonathan Haggerty eventually faced Rodtang in a rematch for the ONE Muay Thai title at on 10 January 2020. He was knocked down in the opening round and was dominated for the remainder of the fight, losing by TKO in the third round after being floored another three times.

Titles And Accomplishments