This race has finished.
The next edition is undecided. Please check the official site.
Status updated: June 29, 2026
Date
May 24, 2026
Location
Chiba
Distance
Triathlon
Entry Fee
—
Time Limit
—
Capacity
700 runners
Finish Rate
—
Last updatedJune 29, 2026·3 days agoOfficial site checkedJune 29, 2026
AI summary
TRIATHLONCategory & distances
Olympic (51.5km)Swim 1.5km / Bike 40km / Run 10kmIn addition to the Standard (Olympic) category, there are multiple events, including Sprint (S750m/B20km/R5km), Challenge, Junior A and B, and Swimmy.
Swim venue
SeaOkinoshima
Wetsuit
Required
Eligibility / licence
One-day registration OKParticipation is open to those without a sports organization registration (JTU registration). Registered participants receive a discount on the entry fee and are covered by accident insurance.
Cutoffs & time limit
Swim time limits: Standard 60 minutes, Sprint 40 minutes, Challenge 20 minutes, Junior A 20 minutes, Junior B 10 minutes. No overall time limit is listed.
Summary for guidance. Always confirm rules and eligibility on the official site. Last verified: June 22, 2026
Access
ACCESSNote: the map shows the approximate area. Check the official site for the exact start/venue.
Score
RATINGSAuto-calculated from market research, official data, and online voicesSome scores unavailable（5/6）Course Appeal
コースの魅力
N/A
Organization & Support
運営・サポート
N/A
Finishability
完走しやすさ
N/A
Atmosphere
大会の盛り上がり
N/A
Access
アクセス
3.0
Value for Money
コスパ
N/A
Runner Reviews
REVIEWSNo runner reviews for this race yet.