Tran Quang Loc is from Dong Nai, a heavily-populated Vietnamese province east of Ho Chi Minh City. He began training in martial arts at the age of 10 with a Vietnamese style called Nam Huynh Dao, which is similar to Chinese kung fu. Later, Tran moved to the Lien Phong martial arts school run by Vietnamese-American actor Johnny Nguyen.
Tran made his amateur cage debut last July, winning a one-night tournament with two first-round finishes. This led him to a professional debut with ONE Championship, and he is determined to make a successful start to a promising career.