The 24th Annual Chicago Open is held from 21-25 May, 2015, at the Westin Chicago North Shore Hotel, 601 North Milwaukee Ave, Wheeling, Illinois.
The event has 8 sections: Open, Under 2300, Under 2100, Under 1900, Under 1700, Under 1500, Under 1300 and Under 1000.
The Open section is a 9-round Swiss tournament, valid for FIDE rating and norms.
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