10 Players entered the competition, They were divided in 3 Groups(A,B,C). Best 2 group winners got byes to semifinals and the rest group winner and runners up competed in Quarter-finals for 2 semi-finals berths.
The draw of the group stage revealed on 26 August 2021.[3] The group stage was played from 1 to 3 September. The top two winners of each group advanced to the knockout rounds.
^"Women's singles SU5 – Seeds"(PDF). Olympics.com. Tokyo Organising Committee of the Olympic and Paralympic Games. Archived from the original(PDF) on 29 August 2021. Retrieved 28 August 2021.