100 kilometers through mountain communities and twin summits above Chiang Mai
The longest and most demanding distance at Pong Yaeng Trail, covering 100 kilometers through the mountains and communities of Pong Yaeng. The course traverses dense forest, exposed ridgelines, and local village paths, passing key summits including Mon Long and Doi Pui over a 30-hour cutoff. A true test of endurance in the mountain landscape of northern Thailand.
Experienced ultrarunners
Mae Rim, Chiang Mai, ThailandOctober 17, 2026
| Location | km | Elevation |
|---|---|---|
Start Start | 0.0 | 780 m |
Finish Finish | 100.0 | 768 m |
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October is the tail end of Thailand's monsoon season. Expect temperatures of 25–30°C during the day at lower elevations, dropping to 15–18°C at higher altitudes overnight. Humidity remains high and rain showers are possible, particularly in the afternoon. Trail surfaces may be muddy and slippery from seasonal rainfall. Conditions on exposed ridgelines and summits can change quickly.
Daytime temperatures can reach 30°C with high humidity; runners should hydrate aggressively in the first half of the race
October falls at the tail end of Thailand's monsoon season; rainfall and muddy trails are possible throughout the race
Mountain weather changes rapidly on exposed ridgelines; mandatory rain jacket required for all participants
No recommended gear specified
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