2021 Chicago Fall Tennis Classic
The 2021 Chicago Fall Tennis Classic was a WTA tournament organised for female professional tennis players on outdoor hard courts due to the cancellation of the Asian tournaments because of the ongoing COVID-19 pandemic. It was the 1st edition of the event and took place at XS Tennis and Education Foundation in Chicago, United States from 27 September to 3 October 2021.
Champions
Singles
Garbiñe Muguruza def. Ons Jabeur, 3–6, 6–3, 6–0Doubles
Květa Peschke / Andrea Petkovic def. Caroline Dolehide / CoCo Vandeweghe, 6–3, 6–1Singles main draw entrants
Seeds
- Rankings are as of September 20, 2021.
Other entrants
The following players received wildcardThe following players received entry from the qualifying draw:
- Lizette Cabrera
- Kirsten Flipkens
- Magdalena Fręch
- Beatriz Haddad Maia
- Mai Hontama
- Maddison Inglis
- Anna Kalinskaya
- Kateryna Kozlova
Withdrawals
;Before the tournament- Sorana Cîrstea → replaced by Hsieh Su-wei
- Coco Gauff → replaced by Ann Li
- Daria Kasatkina → replaced by Amanda Anisimova
- Sofia Kenin → replaced by Andrea Petkovic
- Johanna Konta → replaced by Madison Brengle
- Petra Kvitová → replaced by Misaki Doi
- Petra Martić → replaced by Camila Osorio
- Jeļena Ostapenko → replaced by Harriet Dart
- Karolína Plíšková → replaced by Kaia Kanepi
- Alison Riske → replaced by Jasmine Paolini
- Aryna Sabalenka → replaced by Sloane Stephens
- Maria Sakkari → replaced by Olga Govortsova
- Elena Vesnina → replaced by Marie Bouzková
Doubles main draw entrants
Seeds
1 Rankings as of September 20, 2021.Other entrants
The following pairs received wildcard- Hailey Baptiste / Whitney Osuigwe
- Kim Clijsters / Kirsten Flipkens
- Caroline Dolehide / CoCo Vandeweghe
Withdrawals
;Before the tournament- Lyudmyla Kichenok / Jeļena Ostapenko → replaced by Magdalena Fręch / Katarzyna Kawa
- Marta Kostyuk / Dayana Yastremska → replaced by Lyudmyla Kichenok / Marta Kostyuk
- Jamie Loeb / Tereza Mihalíková → replaced by Harriet Dart / Tereza Mihalíková