Terms of Service
Last updated: September 19, 2026
1. Acceptance of Terms
By accessing or using Mahjong Metrix, you agree to be bound by these Terms of Service. If you disagree with any part of these terms, you may not access or use the platform.
2. Account Registration & Conduct
To participate in tracked tournaments and record ratings, you must authenticate using supported providers (such as Google OAuth). You agree to:
- Provide accurate account information and maintain the security of your account.
- Adhere to principles of fair play and competitive integrity during Riichi Mahjong tournaments and matches.
- Not submit fabricated match scores, manipulate rating calculations, or misrepresent tournament outcomes.
3. Platform Services & Ratings
Mahjong Metrix provides scoring utilities, placement Uma calculations, seating assignments, and seasonal player ratings. We strive for high accuracy in all rating algorithms but reserve the right to audit, correct, or recalculate match records in cases of proven score-entry errors or unsportsmanlike conduct.
4. Termination & Account Deletion
You may terminate your account at any time by utilizing the self-service account deletion feature located in your Settings. We reserve the right to suspend or terminate accounts that engage in harassment, abuse, or attempts to compromise platform security.
5. Contact
For questions regarding these Terms, please reach out to: