3rd Thep Sadet Trail 100km
3rd Thep Sadet Trail 100km is a 100 km ultramarathon in Doi Saket, Chiang Mai, Thailand, taking place on Oct 31 – Nov 1, 2026.
- Date
- Oct 31 – Nov 1, 2026
- Distance
- 100 km
- Location
- Doi Saket, Chiang Mai, Thailand
- Format
- Fixed distance