Sport · North
Chiang Dao 100 Ultra-Trail 2026
A 100 km ultra trail under Doi Chiang Dao, with distances from 10 km to 100 km based at Ban Mae Na School.
Confirmed dates
- Dates
- Sat 19 to Sun 20 Dec 2026
- Date status
- Dates published by the organiser or an official tourism source
- Venue
- Ban Mae Na School, Mae Na
- City
- Chiang Dao
- Province
- Chiang Mai
- Region
- North
- Category
- Sport
- When it runs
- 2026 edition on 19 to 20 December 2026
- Checked
- Tue 27 Oct 2026 against the official source
About this event
The Chiang Dao 100 Ultra-Trail runs on 19 and 20 December 2026 from Ban Mae Na School in Mae Na, Chiang Dao, in the shadow of Doi Chiang Dao, Thailand's third highest peak. The longest course is a true ultra of about 104 km with over 5,000 metres of climbing, backed by 50 km, 30 km, 20 km and 10 km options. Runlah lists the race on its Chiang Mai calendar, and Chiang Dao is an easy overnight escape from Chiang Mai city.
Booking
Booked around the event: hotels, passes, transfers and eSIM. Booking options for this event are being checked and will be added here.
Official source: https://www.runlah.com/en/calendar/location/chiang-mai. Dates checked Tue 27 Oct 2026.