▼Tournament Outline ▼Pre-registration ▼On-site Registration ▼Participation Process
Tournament Outline
Tournament System
The winner will be determined through a double-elimination Swiss-style tournament.
Please refer to the JBS Swiss-style tournament regulations for details on how rankings are determined.
Match Format
All matches: 9-point matches
Clock: 18 minutes & 12 seconds delay
Eligible for JBS rating matches
Schedule
Registration period: April 1, 2025, to April 28, 2025 (pre-registration)
On-site-registration: May 3, 2025
tournament: May 3, 2025, to May 5, 2025
Final: May 5, 2025
Eligibility
Open to all
Entry Fee
JBS members:
¥20,000 (pre-registration), ¥25,000 (on-site registration)
*Founding members receive a discount as per regulations.
*JBS members who are also BMAB Grandmasters will be charged the same rate as Diamond founding members.
JBS associate members and visitors:
¥30,000 (pre-registration), ¥35,000 (on-site registration)
Prizes
Champion:
Free entry to the "Japan Open 2026"
Invitation to the "7th Saiou All-Star 2026"
Secured spot on the Japanese team for the "WBGF World Team Championship 2026"
VIP room access at the "Backgammon Festival 2026"
Top 4 (including the champion):
Championship trophy or certificate
Prizes specified by JBS
Pre-registration
Please complete both "1. Entry Application" and "2. Payment of Entry Fee."
If either is incomplete, the pre-registration will be invalid.
1. Entry Application:
Proceed to the "Entry Reception" page on this special website and fill in the required information.
Pre-registration for the "Japan Championship Satellite," "World Championship Challenge," and "1st Tokyo Open" will also be conducted simultaneously.
2.Payment of Entry Fee:
Please check the "Pre-registration Payment Portal" page and pay the entry fee.
You can choose between "bank transfer" or "credit card payment."
Please ensure the correct amount is paid.
3.Confirmation of Pre-registration Completion:
Once the event committee confirms the completion of your pre-registration, your name will be listed on the "Participants List" page within 3 days.
Please verify that your registration has been successfully completed.
Pre-registered participants do not need to register on the day of the event. Please arrive at the venue by the match start time.
On-site-registration
Registration Period
May 3, 2025, 10:30 AM to 1:00 PM
Conducted at the "BACKGAMMON FESTIVAL" general reception
Entry Procedure
Fill out the registration form with your "name," "JBS membership type," and "GMAB title status," and pay the specified entry fee.
Only cash payments are accepted.
If you wish to participate in the "World Championship Challenge" or "1st Tokyo Open," please register separately.
Participation Process
Player Registration Confirmation
The list of participants will be finalized by 1:00 PM on May 3, 2025.
Please ensure your name is listed on this special website.
If your name is not listed, your registration is incomplete.
Please contact the event committee immediately.
Event Participation
The opening ceremony is scheduled to begin at 2:00 PM on May 3, 2025, before the first round.
Please check the match schedule and arrive at the designated board by 1:55 PM.
Matches will begin following the opening ceremony, upon the signal from the event committee.
Winners should report their results to the event committee.
For subsequent rounds, matches will begin as soon as both players are ready.
Participants will be eliminated after two losses.
Participants in the "1st Tokyo Open" will proceed to the next event immediately after.
Awards Ceremony
Top finishers (4th place and above) will be awarded at the ceremony starting at 6:50 PM on May 5, 2025. Please attend.