Sign Up

Register to receive unrivalled access to the world of tennis

Shop My Account

Sign up

Shop My Account

Tournaments
ITF World Tennis Tour Calendars
ITF Tournament Calendars
ITF Competition Calendars
- Billie Jean King Cup Calendar
- Davis Cup Calendar
ITF Tours
ITF World Tennis Tour
ITF Tours
ITF Competitions
Grand Slams
- Grand Slam tournaments
eSports
- eSports
Players
Results
Rankings
ITF World Tennis Tour Rankings
- Women's
- Men's
- Juniors
ITF Rankings
ITF Competition Rankings
- Billie Jean King Cup
- Davis Cup
News
All News
- Latest News
- Latest photos
ITF Tours
Olympics
ITF Competitions
- Billie Jean King Cup
- Davis Cup
About us
Governance
Tennis Tech
ITF Events
Organisation
Growing the Game
Growing the Game

Home
Players
rioko umekuni Activity

Rioko Umekuni

Rioko Umekuni

Japan

Head To Head

Age: 18

Plays: Unknown

Overview
Activity
ITF Points Breakdown
Titles
Grand Slams

Rioko Umekuni Juniors Singles Activity

Commercial Partners

Discover More

ITF Tours

Men's World Tennis Tour
Women's World Tennis Tour
World Tennis Tour Juniors
World Tennis Masters Tour
UNIQLO Wheelchair Tennis Tour
Beach Tennis

Olympics, Paralympics

Olympics Paris 2024
Paralympics Paris 2024
Youth Olympic Games 2022

ITF Competitions

Billie Jean King Cup
Davis Cup
Hopman Cup

ITF Sites & Apps

IPIN Player Portal
ITF Academy
World Tennis Number
Live Scores
Rules of Tennis App
Site map

ITF Affiliates

ATP
WTA
Australian Open
Roland Garros
Wimbledon
US Open
International Tennis Integrity Agency
International Tennis Hall of Fame
The Association of Centenary Clubs
The International Club

Terms & Conditions
Data Privacy
Cookies
Whistle-blowing
Modern Slavery
Privacy Notices
Accessibility
Compatibility

Copyright © 2025 International Tennis Federation

Follow Us

Copyright © 2025 International Tennis Federation