<page_title> List of tennis tournaments </page_title> <section_title> ATP Challenger Tour tournaments </section_title> <table> <cell> Nielsen Pro Tennis Championships <col_header> Competition </col_header> </cell> <cell> 1984 <col_header> Year debut </col_header> </cell> <cell> United States Winnetka, Illinois <col_header> Host </col_header> </cell> </table>
The Nielsen Pro Tennis Championships is a tennis tournament held in Winnetka, Illinois, USA since 1984.