 Mah won the Asian Individual Squash Championships on four successive times in 1988, 1990, 1992 and in 1994.She was the first player to win Asian Squash Women's singles Championships twice and held the record for winning the most number of Asian Individual Squash Championships until 2006 which was broken by Malaysian veteran Nicol David.Mah competed at her maiden Asian Games event in 1998 and claimed a bronze medal in the women's singles.