2025 Illinois Open

August 28th - Sep. 1st, 2025

DoubleTree by Hilton Lisle Naperville
3003 Corporate W Dr, Lisle, IL 60532

Event run by the organizers of the Chicago Summer Open, King Registration and Wilson Chess

Watch games live for the IL Open on Lichess (Link TBA)
View pairings and standings at https://www.kingregistration.com/results/ILopen25

 

$126 room rate until 8/16 reservation link TBA

Top section Norms possible!!! & (Major / U2100) FIDE rated.

4 Sections — Major section and U2100 sections are FIDE rated

3 playing schedules (5-day, 4-day, or 3-day)
Also Sunday Night Blitz (see below)

$15,000 in prizes
including $1,000 in door prizes for ICA Members
60 US Chess Enhanced Grand Prix points

SECTIONS PRIZES
Open (FIDE Rated & Norms possible!) $2000 — $1000 — $800 — $600— $400
Under 2100 (FIDE Rated) $1500 — $900 — $500 — $400— $300
Under 1700 $1300 — $700 — $450 — $400— $300
Under 1300 $1000 — $500 — $400 — $300— $250
Unrateds may not win over $300 in U1300, or $400 in U1700

 

Minimum Prize Guarantee for foreign GM's, IM's & WGM's
Must register by 8/15 and play all 9 rounds to qualify

Foreign GM's = $300
Foreign IM's = $150

 

ENTRY FEES: TIME CONTROLS AND PLAYING SCHEDULE:
  • $120 online by 8/01
  • $130 online by 8/15
  • $140 online by 8/27 - Major Section
  • $140 online by 8/28 - All other sections
  • $160 after that or onsite
    • $5 discount for ICA members
    • Become a ICA member - Here
  • GMs/WGMs & all IL FIDE titled players (FM/WFM and above) free entry.
  • Out of state IMs $50 off. Online registration should recognize title.
  • Entries later than 30 minutes before round 1 of any schedule receive 1/2-point bye for round 1.
  • Play-up one section up to U2100 for $25 extra. Must be within 200 points of next section.
  • Play-up into Open $220 anyone below 2100 US Chess and 2000 FIDE.
  • 1/2-point byes OK all rounds, must commit by end of round 2 (maximum 2).
  • Reentry available for $60 (no Open to Open)
  • Default time is 1 hour.

5-day (Major only)
G/90;+30 second increment

  • Thursday 7:00pm
  • Friday 2:00pm 7:00pm
  • Saturday 10:00am, 4:00pm
  • Sunday 10:00am, 3:00pm
  • Monday 10:00am, 3:00pm

4-day
G/90;+30 second increment

  • Friday 7:00pm
  • Saturday 10:00am, 4:00pm
  • Sunday 10:00am, 3:00pm
  • Monday 10:00am, 3:00pm

3-day
1st two games G/60;d10, then merges with 4-day schedule

  • Saturday (G/60;d10): 10:00am, 1:00pm
  • Saturday (G/90;+30): 4:00pm
  • Sunday (G/90;+30): 10:00am, 3:00pm
  • Monday (G/90;+30): 10:00am, 3:00pm

 

Boards, sets, and clocks provided
Refunds are subject to $15 processing fee

 

Sunday Night Blitz!
8:30pm 9/1
4 double rounds (one as white/one as black) at G/3;+2

PRIZES!
1st - $150
2nd - $100
1st Under 2100 - $80
1st Under 1900 - $70
1st Under 1700 - $70
1st Under 1500 - $60
1st Under 1300 (or Unrated) - $50


One bye available (any round)

Entry fee: $25 online until 8/30, $30 day of or on-site

 Register online at https://www.kingregistration.com/event/ILopenblitz25 or onsite by 8:15pm

 

For the Individual Scholastic on Saturday Aug. 31 see https://www.kingregistration.com/event/ILschol25

Contact Email: WilsonSChess@gmail.com Attn. Illinois Open