Wong first came to Singapore to join the Republic of Singapore Air Force. He won silver medals at the 1989, 1991, and 1993 Southeast Asian Games. After his retirement, he became a vice-president of the Singapore Fencing Association and a coach for the national team. He also co-founded Z Fencing, a chain of fencing schools. As of 2016, no fencer has represented Singapore at the Olympics since Wong and Tan Kim Huat in 1992.