When
Dec 06, 2026
Starts at 9:00am JST
Weather
Last Year's Race Weather
🌤️ Mostly clear · -1°C–9°C
· Wind 7 km/h
Registration
Open Now
Closes September 9, 2026 · 11:59 PM JST
Website
Official website →
Event Details
The 21st Shonan International Marathon
Event type
Full-Marathon
Distance
42.2 km
Surface
Road
Registration opens
April 4, 2026 · 8:00 PM JST
Registration closes
September 9, 2026 · 11:59 PM JST
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