Leaderboard Events How it Works

Koki Watanabe

Country: JPN

KWKoki Watanabe

Discipline

Singles Doubles Mixed

Overview Matches Insights

← Back to leaderboard

OpenRating

Transparent, auditable ratings for any sport. Built with open data and open source technology.

Platform

How it Works
Leaderboard
Events

Resources

Documentation
GitHub
System Status

Connect

Contact Us
Twitter / X

© 2026 OpenRating. All rights reserved.