Marathons in Japan This Week (Calendar 2026–2027)
3 marathons happening in Japan this week (Oct 8–Oct 14, 2026). Dates, distances and registration links below — updated daily.
| Date | Race | Location | Distances | Registration | Details | Organizer |
|---|---|---|---|---|---|---|
| OCT 9 2026 Starts in: 04:04:45 |
6th Lake Biwa 100 - 169km Plan in My Races |
Japan | ultra - 169km | Link needed | View | Update listing |
| OCT 11 2026 Starts in: 2d 04:04:45 |
4th Aizu Yanaizu Akabeko Marathon - 12h Plan in My Races |
Japan | Ultra Marathon, ultra - 12h | Link needed | View | Update listing |
| OCT 11 2026 Starts in: 2d 04:04:45 |
Niigata City Marathon Plan in My Races |
Japan | Full Marathon | Registration link | View | Update listing |
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Frequently Asked Questions
Which marathons are happening in Japan this week?
There are 3 marathons and running races in Japan this week (Oct 8–Oct 14, 2026), including 6th Lake Biwa 100 - 169km, 4th Aizu Yanaizu Akabeko Marathon - 12h, Niigata City Marathon. 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 ultra - 169km, Ultra Marathon, ultra - 12h, Full Marathon. Filter by distance on each race page to find the right event for you.
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