Ultramarathons in Chiang Mai
15 upcoming ultramarathons in Chiang Mai, Thailand.
3 cities
Busiest: December
From €4,200
Upcoming races
Your guide to ultramarathons in Chiang Mai, Thailand
There are 15 upcoming ultramarathons in Chiang Mai, Thailand, spread across 3 cities. Filter by distance or terrain to narrow things down, and save the races you like the look of.
Most take place in December, November and January. Next up is THEP SADET TRAIL 2026 - TST100 in Chiang Mai on 31 October 2026.
Questions runners ask
How many ultramarathons in Chiang Mai, Thailand are there?
Finndu lists 15 upcoming ultramarathons in Chiang Mai, Thailand, across 3 towns and cities. The list is updated twice a day as organisers announce new races.
When is the next one?
THEP SADET TRAIL 2026 in Chiang Mai, on 31 October 2026.
Which month has the most ultramarathons in Chiang Mai, Thailand?
December, followed by November and January.
How much does it cost to enter?
Entry starts from THB 4,200. Fees vary from race to race, so check each race page for its current price.