2026 Illinois Open
Thursday, September 3, 2026 – Monday, September 7, 2026Lisle, IL
Please confirm all information with the tournament organizer before attending.
VenueDoubleTree by Hilton Lisle Naperville
Address3003 Corporate W Dr., Lisle, IL 60532
Format9-Round Swiss (Open 5-day schedule only; 2-day, 3-day, 4-days schedules available for other sections)
SectionsOpen (FIDE Rated), U2100 (FIDE Rated), U1900 (FIDE Rated), U1700, U1500, U1300
Time ControlG/90+30 (5-day, 4-day) (3-day Rd. 1: G/60; d10; 2-day Rds. 1-4: G/30; d5)
Entry Fee$120–$160 ($5 discount for ICA members; GMs/WGMs and all IL FIDE titled players FM/WFM and above free; out-of-state IMs $50 off; price increases after 8/13, 8/27, and 9/02–9/03)
Is This Tournament a Good Fit?
Perfect for players across a wide range of strengths, with sections from 1300 to open rating levels and flexible time commitments ranging from a fast 2-day format with blitz-pace games to a full 5-day classical schedule at G/90+30. Entry fees are accessible at $120–$160 (with discounts for ICA members and titled players), and the event offers FIDE-rated competition in most sections. Whether you're a club player looking for a weekend tournament or a serious competitor seeking a longer classical event, this Illinois Open has a format that fits your schedule and playing style.