Garbiñe Muguruza defeated Anett Kontaveit in the final, 6–3, 7–5 to win the singles tennis title at the 2021 WTA Finals. It was her 10th career WTA Tour title.
Ashleigh Barty was the reigning champion from when the event was last held in 2019, but withdrew to prioritize her recovery and prepare for the upcoming season.
Aryna Sabalenka, Barbora Krejčíková, Maria Sakkari, Iga Świątek, Paula Badosa, and Kontaveit made their singles debuts at the event. Krejčíková was the only player in this edition to qualify for both the singles and doubles tournaments.
Seeds
Alternates
Notes: Ons Jabeur, Naomi Osaka, Anastasia Pavlyuchenkova, and Elina Svitolina all qualified as alternates but withdrew before the start of the event
Draw
Finals
Group Chichén Itzá
Group Teotihuacán
Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-player ties, head-to-head records; 4. in three-player ties, (a) percentage of sets won (head-to-head records if two players remain tied), then (b) percentage of games won (head-to-head records if two players remain tied), then (c) WTA rankings.
References
External links Singles Draw Official website WTA website draw