About
A UTMB Major event spanning Chiang Mai's iconic peaks — Doi Inthanon, Doi Suthep, and Chiang Dao. Runners traverse cloud forests, hill-tribe villages, and temple trails across multiple race weekends. Chiang Mai's renowned night markets and temples make it a top post-race destination.
Organized byUTMB
Difficulty
|170
Herculean271 KE
KM-Effort = distance (km) +elevation gain (m)100
Based on the ITRA standard.
Elevation Density57 m/km · Hard
Elevation Density =