(draw) Danielle Collins () – Palermo (draw) Emma Raducanu () – US Open (draw) Jasmine Paolini () – Portorož (draw) Ann Li () – Tenerife (draw) Doubles Ankita Raina – Melbourne 4 (draw) Kamilla Rakhimova – Melbourne 4 (draw) Caroline Dolehide – Monterrey (draw) Elixane Lechemia – Bogotá (draw) Ingrid Neel – Bogotá (draw) Hailey Baptiste – Charleston 2 (draw) Jennifer Brady – Stuttgart (draw) Marie Bouzková – Birmingham (draw) Jasmine Paolini – Hamburg (draw) Jil Teichmann – Hamburg (draw) Susan Bandecchi – Lausanne (draw) Simona Waltert – Lausanne (draw) Anna Danilina – Gdynia (draw) Erin Routliffe – Palermo (draw) Kimberley Zimmermann – Palermo (draw) Natela Dzalamidze – Cluj-Napoca (draw) Kaja Juvan – Cluj-Napoca (draw) Tereza Mihalíková – Portorož (draw) Andrea Petkovic – Chicago (draw) Ulrikke Eikeri – Tenerife (draw) Irina Bara – Cluj-Napoca 2 (draw) Ekaterine Gorgodze – Cluj-Napoca 2 (draw) Mixed doubles Desirae Krawczyk – Roland Garros (draw) – 2020 Summer Olympics (draw) The following players defended a main circuit title in singles, doubles, or mixed doubles: Singles Ashleigh Barty – Miami (draw) Doubles Hsieh Su-wei – Wimbledon (draw) Lucie Hradecká – Prague (draw) Elise Mertens – Indian Wells (draw) Mixed doubles Barbora Krejčíková – Australian Open (draw) Best ranking The following players achieved their career high ranking in this season inside top 50 (in bold the players who entered the top 10 for the first time). Singles Doubles WTA rankings These are the WTA rankings and yearly WTA Race rankings of the top 20 singles and doubles players at the current date of the 2021 season. Singles Number 1 ranking Doubles Number 1 ranking Points distribution S = singles players, D = doubles teams, Q = qualification players. * Assumes undefeated Round Robin match record. Prize money leaders Comebacks The following is a list of notable players (winners of a main tour title, and/or part of the WTA rankings top 100 in singles, or top 100 in doubles, for at least one week) who returned from retirement or inactivity during the 2021 season: Carla Suárez Navarro (born 3 September 1988 in Las Palmas de Gran Canaria) In April 2021, Suárez Navarro announced that her Hodgkin's Lymphoma was in complete remission, and that she would commence a farewell tour beginning at Roland-Garros and culminating in a final US Open appearance, where she lost in the first round to Danielle Collins. Elena Vesnina (born 1 August 1986 in Lviv,