Marathons in Thailand This Week (Calendar 2026–2027)
1 marathon happening in Thailand this week (Sep 22–Sep 28, 2026). Dates, distances and registration links below — updated daily.
| Date | Race | Location | Distances | Registration | Details | Organizer |
|---|---|---|---|---|---|---|
| SEP 27 2026 Starts in: 4d 03:59:55 |
3rd Koh Chang Trail - 55km Plan in My Races |
Thailand | ultra - 55km | Link needed | View | Update listing |
Get next week's Thailand 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 Thailand this week?
There are 1 marathons and running races in Thailand this week (Sep 22–Sep 28, 2026), including 3rd Koh Chang Trail - 55km. Each race below links to full dates, distances, location and registration details.
Can I still register for races in Thailand 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 Thailand this week?
Distances this week include ultra - 55km. Filter by distance on each race page to find the right event for you.
List your marathon with verified details
Hosting a marathon in Thailand? 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 Thailand? Open the race and use Update listing. Missing event? Add it for free with the location prefilled.