When
Mar 21, 2027
Starts at 9:00am JST
Weather
Last Year's Race Weather
🌤️ Mostly clear · 4°C–15°C
· Wind 22 km/h
Registration
Open Now
Closes December 4, 2026 · 11:59 PM JST
Website
Official website →
Event Details
It is a course that is very easy to record with little height difference running along the Arakawa Riverbed. In addition, the time limit is 7 hours, and it is a beginner-friendly tournament.
The average time of the finishers is 4 hours, 26 minutes and 17 seconds!
Event type
Full-Marathon
Distance
42.2 km
Surface
Road
Registration opens
September 1, 2026 · 10:00 AM JST
Registration closes
December 4, 2026 · 11:59 PM JST
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