Yasu Hirai (Yasu) is one of Japan's leading open water swimmers, with numerous remarkable achievements in the 10km event. He has been active on the international stage for over 10 years, competing as a member of the Japanese national team and making a name for himself in numerous competitions.
Among his major achievements:
- 2014 Pan Pacific Swimming Championships – 6th place
- 2015 World Championships – 11th place
- 2016 Rio de Janeiro Olympics – 8th place (4.8 seconds behind the gold medalist)
- 2017 Asian Open Water Swimming Championships – Gold in the 5km event
On November 9, 2025, Yasu will compete in IRONMAN 70.3 MELBOURNE in Melbourne, Australia.
This race marks his first event in the ROAD TO KONA campaign, serving as an important step in his journey toward competing in the Ironman World Championships in Kona.
From October 31 to November 2, 2025, Yasu will compete as an invited athlete at Noosa Triathlon 2025, one of the largest triathlon festivals in the world, held in Noosa, Australia.
Following his participation last year, Yasu will take part in the Celebrity Triathlon Relay as well as multiple other events. This high-profile festival attracts athletes and fans from around the globe, promising exciting and competitive races.
From October 10–12, 2025, Yasu will compete as an invited athlete at Santorini Experience 2025, one of the largest multi-sport festivals in Europe, held on the iconic island of Santorini, Greece.
The Santorini Experience unites world-class athletes from around the globe, featuring open water swimming, running, and other endurance sports. Each year, it draws international attention as one of Europe’s premier sporting events.
As a two-time Olympian and one of Japan’s most accomplished open water swimmers, Yasu has been invited to participate in recognition of his outstanding achievements and unwavering passion for competition.
Follow his journey and witness his performance in the breathtaking waters of the Aegean Sea.