In 2020, Wong reached the quarterfinals in Australian Open girls' singles, which was the best ever result of Hong Kong players in Australian Open juniors, and the first Hong Kong player to reach quarterfinals of Grand Slam singles since Patricia Hy-Boulais in 1983.

Wong won five singles and seven doubles titles at the juniors ITF World Tennis Tour, with a career high ranking of 18.

[citation needed] Wong first played on the WTA Tour in the 2016 Hong Kong Open, when she was awarded a wildcard for the qualifying draw, and again in 2017 and 2018.

She began competing on the ITF Women's Circuit in 2017, and won her first singles title in October 2019 in Hua Hin, Thailand.

[citation needed] Wong made her WTA Tour main-draw debut as a wildcard entrant at the 2023 Hong Kong Tennis Open, losing to qualifier Sofya Lansere in the first round.