Career
He is a two-time Olympian (1996 and 2000), and a triple medalist at the 2001 Southeast Asian Games. Sng also trained for the Aquatic Performance Swim Club in Singapore district, under head coach Jin Xia Li. Sng made his Olympic debut, as a 16-year-old from Singapore, at the 1996 Summer Olympics in Atlanta.
At the 2000 Summer Olympics in Sydney, Sng drastically shortened his program, swimming only in the 400 m freestyle on the first day of the Games.
He posted a FINA B-standard of 4:04.55 from the Southeast Asian Games in Brunei. He established a Singaporean record of 4:01.34 to hit the wall first in heat one, holding off Chile"s Giancarlo Zolezzi by 0.17 of a second.