[1][2] The main qualifying criterion will be players' positions on the ATP and WTA ranking lists published on 14 June 2021 (after 2021 French Open).
All players were required to have been part of a nominated team for a Fed/Davis Cup event in 2019 or 2020, and to have had a good standing with their National Olympic Committee.
For the singles competitions, the top 56 players in the world rankings on a later date to be announced of the WTA and ATP tours are qualified for the Olympics.
The final two spots are reserved, one for the host nation and one for a previous Olympic gold medalist or Grand Slam champion who didn't secure a direct entry.
If the quota of 86 players in the relevant gender had not yet been met, additional places continued to be allotted via combined ranking.
Once the quota was met, remaining teams with both players qualified in the singles were selected based on their best combined ranking.
Fifteen teams, based on combined ranking, and the host nation qualified.