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The Oklahoma Scholastic Chess Organization (OSCO) provides chess tournaments for K-12 students throughout Oklahoma. We are an all-volunteer 501 (c)(3) nonprofit. If you would like to volunteer, connect us with a potential tournament venue, or make a donation, contact us at board@oscochess.org.

2026 Grade Championships

December 5, 2026

ORU's Global Learning Center
7777 S Lewis Ave.
Tulsa, OK 74136

Schedule

9:00  Doors open. There is no check-in; all registered players will be paired.

10:00  Round One for all sections will begin following announcements in the playing hall. 

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  • Subsequent rounds are paired back to back with a break for lunch.

  • Most sections have 5 rounds and players will be eligible to play in ALL rounds. This is not an elimination style event.

  • Awards ceremonies take place for each section after that section's final round is complete.

 

​For late arrivals or last-minute cancellations, send a text to 918-978-1899. This helps us start on time and avoid pairing players with no-shows.​​​​​​

Membership

All OSCO tournaments are rated by the US Chess Federation  ​and require an annual membership. 

 

You can purchase this membership for $24 directly from US Chess using this link: Membership

 

To help offset the cost of this membership for new players,  use the promo code UNRATED and get a $10 discount for their first OSCO tournament.

 

​⚠️ Buying a membership does NOT register your child for the tournament. You must complete the following steps. 

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Step 1: Buy or renew the membership.

You will get confirmation from US Chess with your child's USCF ID number.  

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Step 2: Register for the tournament using that ID number.

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What happens next?

You'll receive a tournament registration confirmation and see your child's name on the entry list.

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Read before you register

When you register, you will be asked to agree to OSCO's terms & conditions. You will also be asked to affirm that you will make sure your player understands our tournament rules and code of conduct. Please take a moment to read them now. 

 

Terms & conditions

Tournament rules

Code of Conduct ​

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If you or your player have a question about OSCO's rules, please contact us at td@oscochess.org so we can answer it before the tournament.​

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Registration

Discounts: 

$5 per player if registering 3 or more siblings. Use promo code "SIBLING"

$10 for new players who had to purchase a US Chess ID for the first time. Use promo code "UNRATED"​

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$30 Early Registration Deadline is November 29.

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$35 Late Registration Deadline is December 3.

No registrations will be accepted after the deadline.​

​​​Payment questions or refund requests made before the registration deadline may be sent to treasurer@oscochess.org.​

Sections, prizes and other tournament details available at the link below.

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