Course
160km160 km
80km80 km
30km30 km
Key dates
- ★Race dayJune 2027 · date to be announced
Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.
About
Deep Japan Ultra 100 is a trail ultramarathon through the Uonuma region of Niigata, Japan, an area known for its heavy snowfall and rice-growing valleys. Its 160K, 80K and 30K routes cross the area's forested mountains.
Your next race, seen from above.
Save Deep Japan Ultra 100 to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Save Deep Japan Ultra 100 to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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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.