Races›Japan›Shimane›Okinoshima Ultramarathon
Okinoshima, Shimane, seen from above
June 2027 · date to be announced

Okinoshima Ultramarathon

Okinoshima, Shimane · Japan
UltraCoastal

Japan's 50K record race on a remote Oki Island

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Course

100km100 km
50km50 km

Key dates

Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.

About

The Okinoshima Ultramarathon is held on Okinoshima, one of Japan's remote Oki Islands in the Sea of Japan, with 100K and 50K routes. The 50K race, traditionally run around Father's Day, has long been a stage for national-record performances by elite Japanese ultrarunners.

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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.