Choi started learning fencing at La Salle Primary School, and joined the fencing team after entering La Salle College, and represented the school in inter-school competitions, making a name for himself. Since Form 3, he, who is good at foil, has started special training at the Hong Kong Sports Institute. Due to the overlap of fencing practice schedules, he rarely participates in the Saturday afternoon group practice of the La Salle Fencing Team, but he still represents the school in competitions and is one of the main players in the team.[3]
Choi won the gold medal in the individual foil event at the 2012 Asian Junior and Cadet Fencing Championships. He also won the B Grade individual foil championship in the Hong Kong and Kowloon Inter-school Fencing Competition held in January 2013.[4] Choi briefly studied accounting at the University of Hong Kong and quitted in his sophomore year in 2018 to become a full-time athlete.[5] He was roommates with actor-singer Edan Lui during his university years.[6]
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Milan, Italy
Tbilisi, Georgia
Shanghai, China
Incheon, Korea
St. Petersburg, Russia
Cairo, Egypt
Tokoname, Japan
Hong Kong
Paris, France
Bangkok, Thailand
Kuwait City, Kuwait
Bali, Indonesia
