Marathons in Japan This Week (Calendar 2026–2027)
4 marathons happening in Japan this week (Sep 22–Sep 28, 2026). Dates, distances and registration links below — updated daily.
| Date | Race | Location | Distances | Registration | Details | Organizer |
|---|---|---|---|---|---|---|
| SEP 22 2026 Starts in: Today |
Ecomarathon Kanazawa Plan in My Races |
Japan | Half Marathon, 10K, 5K | Registration link | View | Update listing |
| SEP 26 2026 Starts in: 3d 04:01:12 |
Flash Trail Challenge Autumn - 79K Plan in My Races |
Japan | 79K | Registration link | View | Update listing |
| SEP 27 2026 Starts in: 4d 04:01:12 |
Tsukubarenzan trailrun in ISHIOKA - 71K Plan in My Races |
Japan | 71K | Registration link | View | Update listing |
| SEP 27 2026 Starts in: 4d 04:01:12 |
Wakasaji Trail Run - 40K Plan in My Races |
Japan | 40K | Registration link | View | Update listing |
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.
Frequently Asked Questions
Which marathons are happening in Japan this week?
There are 4 marathons and running races in Japan this week (Sep 22–Sep 28, 2026), including Ecomarathon Kanazawa, Flash Trail Challenge Autumn - 79K, Tsukubarenzan trailrun in ISHIOKA - 71K. Each race below links to full dates, distances, location and registration details.
Can I still register for races in Japan this week?
Many races keep registration open until a few days before — and some allow race-day sign-up. Use the registration link on each race for the latest status, since field limits and cut-offs vary by event.
What race distances are available in Japan this week?
Distances this week include Half Marathon, 10K, 5K, 79K, 71K, 40K. Filter by distance on each race page to find the right event for you.
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.