The opening ceremony flag-bearers for Singapore are table tennis player Yu Mengyu and shuttler Loh Kean Yew.

Loh Kean Yew and Yeo Jia Min were selected to compete at the Games in the men's and women's singles, respectively, based on the BWF World Race to Tokyo Rankings.

[9][10] Singapore sent one diver (Jonathan Chan) to the Olympic competition by winning the gold medal in the men's platform at the 2019 Asian Diving Cup in Kuala Lumpur, Malaysia, marking the country's debut in the sport at the Games.

Additionally, Freida Lim qualified in the Olympics after finishing fifteenth in the semifinal round of the women's platform in FINA Diving World Cup thereby making the country's first female diver.

As one of the twelve highest-ranked gymnasts, Tan Sze En received a spare berth freed up by host nation Japan.

[43] Meanwhile, Clarence Chew scored a zonal-match triumph for Southeast Asia to book a men's singles spot at the Asian Qualification Tournament in Doha, Qatar.