| Nielsen Pro Tennis Championships | |
|---|---|
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| ATP Challenger Tour | |
| Event name | Winnetka |
| Location | Winnetka, Illinois, USA |
| Venue | A.C. Nielsen Tennis Center |
| Category | ATP Challenger Tour |
| Surface | Hard / Outdoors |
| Draw | 32S/24Q/16D |
| Prize money | $50,000 |
| Website | Website |
The Nielsen Pro Tennis Championships is a tennis tournament held intermittently in Winnetka, Illinois, USA since 1984. The event is part of the ATP Challenger Tour and is played on outdoor hard courts.