6 races in date order
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Challenge Fuji Five Lakes Ultramarathon
Historic ultra circling Mt. Fuji's Five Lakes since 1990
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Kasumigaura Marathon
Lakeside marathon winding through Japanese countryside charm
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Aomori Sakura Marathon
Point-to-point route finishing at Aomori's Blue Sea Park
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Nagano Marathon
Runs part of the 1998 Winter Olympics marathon course
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Mt. FUJI 100
A circuit of Mt Fuji's forests and lava fields
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Gifu Seiryu Half Marathon
Named for Olympic marathon champion Naoko Takahashi
Your next race, seen from above.
Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
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Save any of these to your season in RunCalendar and hear the morning entries open. Free on iPhone, no account needed.
Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.