Kieran Keddle’s journey into the world of Muay Thai began in 1992 in England at the Lumpinee club, situated within Orpington leisure centre. He was guided by Sean Toomey and inspired by his elder brother Alan, a competitor at the time, who believed in Kieran's aptitude for Muay Thai. Alan would later take the helm of the club, transforming it into the globally celebrated "Keddles Gym."

Kieran's competitive debut occurred at the tender age of 14 at the renowned York Hall in London, where he triumphed with a round 3 TKO. He quickly ascended the ranks, winning the ISKA & WMTO English title at 17, and the WKA, WMTO, and WAKO British titles by the age of 19. This set the stage for Kieran’s rise in the UK's Muay Thai circuit, including significant victories against Dutch luminary Vincent Swanns and world champion Warren Brown. At 21, Kieran was globally ranked and contended with WMC world light-middleweight champion Lee Chesters for the vacant world WAKO-PRO welterweight title, an impressive win he secured on points at the Leeds town hall.

Holding the rank of U.K.'s No. 1, Kieran ventured to Thailand, where he trained at Fairtex and Kaewsamrit alongside renowned champions. He made British history by becoming the first to compete at the iconic Lumpinee & Rajadamnern stadiums, earning 30 bouts in Thailand.

Following his years in Bangkok, Kieran secured a second world title against Andrei Kotsur, the 3-time WKN world Champion, for the WPKL light-welterweight title. He continued to compete globally, from Thailand to Holland, accruing 78 fights. Kieran's final competition was against WPMF world Champion Charles Francois, culminating in his third world title and marking his transition from competitor to coach.

In 2013, Kieran established Double K with the vision of grooming the next generation of Muay Thai, Kickboxing, and MMA champions. Double K swiftly gained recognition with 22 world champions and rising stars such as Charlie Peters, Jake Bostwick, and Luke Whelan.

Kieran's expertise was further highlighted in 2016 when he was appointed head coach for Hollywood actor Idris Elba for the Discovery Channel documentary "Idris Elba Fighter." Under Kieran's guidance, Elba claimed victory with a first-round KO.

Double K’s excellence was officially recognized when it won the U.K. gym of the year in 2017. In 2018, Kieran relocated to Canada with his family to lead Elite Martial Arts in Calgary and assume the role of CEO for Muay Thai World Cup. In Canada, he has coached WBC international and three professional Canadian champions, and serves as the representative of WBC Muay Thai Canada and Road to ONE Canada official.

Anticipated to open its doors in September 2023, the Kieran Keddle academy will continue his legacy in the scenic Bragg Creek, Alberta.