World Athletics Partner
World Athletics Partner
World Athletics Partner
World Athletics Partner
World Athletics Partner
World Athletics Media Partner
City of World Championships 25
World Athletics Supporter
World Athletics Supporter
World Athletics Supporter
World Athletics Supplier
World Athletics Supplier
World Athletics Supplier
World Athletics Supplier
Riku One, the official mascot of WCH Tokyo 25
Riku One's Profile
‘Riku One’ combines ‘riku’, the Japanese word for athletics, with the concept of ‘one’ — symbolising first place, a single second, a single step, a single throw, a single jump, and the ‘all for one’ spirit of athletics. It also reflects the unity of the stadium and represents the sound of a dog's bark, ‘one’ or ‘wan’ in Japanese.
Get ready to meet the adorable mascot of WCH Tokyo 25!
Inspired by the Shiba Inu, one of Japan’s most iconic and loved dog breeds, this energetic character embodies the true spirit of sport - courageous, determined, and always pushing to reach their goals. With a heart as warm as their fur, the mascot makes friends everywhere they go. Full of life, they generate energy through moving their body and burst into an adorable little dance when fully charged! A big fan of Tokyo’s festivals, this mascot is especially excited to have the World Athletics Championships return to their beloved home city after 34 years.
Likes: Running around Tokyo’s famous sightseeing spots (especially the WCH Tokyo 25 marathon course)
Special skills: Sprinting
Favourite colour: Edo Purple
Favourite expression: “Fast as Lightning”
Favourite food: Meats, fish, fruits and vegetables from Tokyo (especially Japanese mustard spinach)
Daily motivation: Relaxing in bathtubs made from local hinoki (Japanese cypress) from Tama City, as well as visiting public bathhouses.
Meet Riku One Event
Join us for a special greeting event where you can meet Riku One in person! Snap a photo, have fun, and make great memories with our lively mascot! Don't miss out! 
Event Schedule
More opportunitites to meet Riku One coming soon. Keep checking here to stay tuned!
DATE: Friday 4 to Sunday 6 July 2025
TIME:
⏰ TBD
EVENT: Japan National Championships
VENUE: Japan National Stadium, Tokyo
HOST: Japan Association of Athletics Federations
NOTE:
DATE: Sunday 6 July 2025
TIME: 10:00 - 17:00
⏰11:00 - 11:30
⏰13:30 - 14:00
⏰15:00 - 15:20
EVENT: Renewal Opening Event of Komazawa Olympic Park General Sports Ground
VENUE: Komazawa Olympic Park General Sports Ground, Tokyo
HOST:Tokyo Metropolitan Government
NOTE:
DATE: Sunday 18 May 2025 Completed.
TIME: 10:45 - 15:00 tbd
⏰ Open all day (Approx. 5-minute experience)
EVENT: SEIKO Golden Grand Prix 2025
VENUE: Japan National Stadium, Tokyo
HOST: Japan Association of Athletics Federations
NOTE:
DATE: Saturday 3 and Sunday 4 May 2025 Completed.
TIME:
⏰ Open all day (Approx. 5-minute experience)
VENUE: Akasaka Sacas Plaza
HOST: TBS Television
NOTE:
DATE: Sunday 6 April 2025 Completed.
TIME:
⏰ 12:00-12:20
⏰ 13:00-13:15
⏰ 14:00-14:20
⏰ 15:00-15:15
⏰ 16:00-16:20
⏰ 17:00-17:15
EVENT: AKASAKA Asobi! Manabi! Festa
VENUE: Akasaka Sacas Plaza & TBS Akasaka BLITZ Studio, etc.
HOST：TBS Television
NOTE:
DATE: Thursday 27 March 2025 Completed.
TIME:
⏰ 9:40-10:20
⏰ 10:50-11:30
⏰ 12:00-12:40
EVENT: Meet Riku One! Greeting event
VENUE: 2nd Fl. North, Tokyo Metropolitan Government Building
HOST: The Local Organising Committee of the World Athletics Championships Tokyo 25
NOTE:
DATE: Wednesday 26 March 2025 Completed.
TIME: 11:40-12:45
⏰ Riku One's appearance - 11:40-11:45
EVENT: Oshi Sports Project – Let’s Enjoy Sports! Lunchtime Demonstration
VENUE: Citizen's Plaza
HOST: Tokyo Metropolitan Government
NOTE:
Note: The event may be canceled or its time/location changed without notice due to bad weather or other circumstances. Thank you for your understanding.
Riku One’s Story
Created in collaboration with World Athletics media partner and WCH Tokyo 25 principal supporter, TBS Television, Riku One is a dynamic and spirited mascot inspired by Japan’s iconic Shiba Inu dog, a breed known for its agility, resilience, and loyalty.
The name was chosen through a nationwide vote, ensuring that fans across the country had a voice in shaping the identity of the championships. Riku One will energize the Championships and inspire people worldwide! You’ll see RikuOne at upcoming event appearances, creating more chances to connect with everyone!
Mascot Animation
'Making-of' video
Watch the ‘making-of’ video below to see the workshop where the children contributed their own unique mascot designs.
