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Kanakuri Cup Tamana Half Marathon
Named for marathon legend Shizo Kanakuri, born in Tamana
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Tokyo Marathon
The seven-majors tour of the world's biggest city
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Miura International Citizens Marathon
Japan's only sister race to the Honolulu Marathon
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Kagoshima Marathon
Kinko Bay views of smoking Sakurajima volcano
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Tottori Marathon
Passes Japan's largest sand dunes on the San-in coast
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Nagoya Women's Marathon
The world's biggest women-only marathon
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Shizuoka Marathon
Flat Suruga Bay course with Mt. Fuji on the skyline
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Ecomarathon Of Hirakata In March
Loops the Yodogawa riverside path, capped at 200 runners
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Matsue Ladies Half Marathon
Starts and finishes at historic Matsue Castle
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Toyohashi Honokuni Half Marathon
Runs along the Toyokawa River levee through Toyohashi
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Tokushima Marathon
Flat course along the Yoshino River through Tokushima
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Itabashi City Marathon
Flat Arakawa riverside course with a 96%+ completion rate
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Saga Sakura Marathon
Spring marathon through Saga timed to cherry blossoms
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Fukui Sakura Marathon
Cherry blossom course along Fukui's Asuwa River
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Horikiri Ecomarathon
Starts at Horikiri Waterside Park in Katsushika
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.