Marathon calendar
Marathons in Japan This Week (Calendar 2026–2027)
No races are listed in Japan this week. Browse all upcoming Japan marathons instead.
Nothing is scheduled in Japan this week yet.
Get next week's Japan races in your inbox
Join free and we'll keep you on top of every upcoming race — plus training, results and a community of runners.
List your marathon with verified details
Hosting a marathon in Japan? Submit the official source for free so runners can verify the race before they plan travel.
- Free listing review
- Official source verification
- Runner-ready listing
- Organizer dashboard
Already listed in Japan? Open the race and use Update listing. Missing event? Add it for free with the location prefilled.