| Oracle Challenger Series – Chicago | |
| Type: | joint |
| Event Name: | Oracle Challenger Series – Chicago |
| Location: | Chicago, United States |
| Venue: | XS Tennis Village |
| Surface: | Hard |
| Website: | oraclechallengerseries.com |
| Completed Event: | 2023 |
| Women's Singles: | Viktoriya Tomova |
| Women's Doubles: |  Ulrikke Eikeri  Ingrid Neel |
| Wta Tier: | WTA 125K series |
| Wta Draw: | 32S / 8Q / 8D |
| Wta Prize Money: | $115,000 |
The Oracle Challenger Series – Chicago is a professional tennis tournament played outdoor on hard courts. It is part of the Women's Tennis Association (WTA) 125K series and an ATP Challenger Tour. The tournament takes place at XS Tennis Village in Chicago, United States. From 2021 onwards, it became exclusively a WTA 125 tournament.
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
| Petra Martić | 6–4, 6–1 | |||
| 2019–20 | Not held | |||
| Clara Tauson | 6–1, 2–6, 6–4 | |||
| 2022 | Not held | |||
| Viktoriya Tomova | 6–1, 6–4 | |||
| Year | Champions | Runners-up | Score | |
|---|---|---|---|---|
Mona Barthel  Kristýna Plíšková | 6–3, 6–2 | |||
| 2019–20 | Not held | |||
 Eri Hozumi  Peangtarn Plipuech | 7–5, 6–2 | |||
| 2022 | Not held | |||
| Ulrikke Eikeri Ingrid Neel | walkover | |||