Oracle Challenger Series - Chicago 2018
The Oracle Challenger Series - Chicago 2018 is a tennis tournament of the WTA Challenger Series 2018 for women and a tennis tournament of the ATP Challenger Tour 2018 for men, which will be held in Chicago from September 3rd to 9th, 2018 .
Men's tournament
Ladies tournament
→ Main article: Oracle Challenger Series - Chicago 2018 / Women
→ Qualification: Oracle Challenger Series - Chicago 2018 / Women / Qualification