National Chess Day Open

Format & time control
5-SS, G/30;+10
Five rounds, Swiss system, game in 30 minutes with 10 seconds added per move.
Dual rated (affects both regular and quick). US Chess regular rating (October 2025 supplement) used for pairings.

Schedule
9–9:30 Onsite registration (if space is available. Limit 60 players)

9:55 Announcements in tournament room. Please be there.

10:00 Round one. Subsequent rounds ASAP with a break for lunch after round two. Prizes will be awarded after the final-round results are entered for each section.

Entry
$30/player. Free entry to titled players (NM+) with $30 deducted from winnings (email us to enter).
Free entry for first-time players who purchase their US Chess membership through us by October 9.

Click here to register: https://caissachess.net/online-registration/index/7444.

Sections and Prizes

• Open $200 + trophy  |  $150  |  $125
• Reserve (U1500) $100 + trophy  |  $75  |  $50  |  top U1200 trophy
• Scholastic U1000: Trophies to the top three. Order generic okccc medals for kids who lose out on a trophy because of tiebreaks.
• The cash prizes above are estimates based on 50 paid entries.
• Blitz playoffs will break first-place ties for trophies only. Mathematical tiebreaks for all others.
• Cash prizes are not affected by tiebreaks.

Playing up from Reserve to Open is permitted within 150 points. (No play-up fee). 
Playing up from Scholastic to Reserve is not allowed. K–12 players rated under 1000 must play in the Scholastic section. 

One half-point bye is available for rounds 1-4 only. Request before round 3.

Equipment is provided. Players are encouraged to bring their own sets to play warmup games over breakfast/lunch in the café. 

A current US Chess membership is required.

Players are responsible for knowing the rules of tournament play. You can download them for free here. 

Questions? (405) 642-6136 or Click here to show mail address.