Serious ultra territory

CM5 challenges experienced ultra runners with multiple demanding loops from the Hmong village HQ. The course includes steep climbs to Doi Pui Summit, long circular routes to Pa Nok Kok Village, and the notorious Huay Kaew Waterfall section.

This distance tests mental fortitude as much as physical capability, with varied terrain keeping runners engaged throughout. Perfect preparation for runners eyeing even greater ultra challenges.

The 50-mile sweet spot for serious mountain running

CM4 represents the global 50-mile standard adapted to Chiang Mai's challenging terrain. The race features a massive circular loop through remote Hmong communities, steep climbs to Doi Pui Summit, and technical waterfall descents often tackled in darkness. This distance attracts runners seeking substantial challenge while maintaining manageable time commitments. Expect rocky, twisty, rooty trails that demand quality lighting equipment and technical trail skills.

The perfect ultra introduction—respectable distance meets mountain challenge

CM3 strikes the ideal balance for runners stepping up from shorter trail races or transitioning from road marathons. After the signature 10km climb to the Hmong village HQ, the route ventures through Doi Pui Summit territory and remote Pa Nok Kok Village. Technical descents test both skills and stamina, while the overall distance provides a true ultra experience without overwhelming newcomers to the format.

Two climbs, two descents — deceptively challenging mountain running

Don't let the simple format fool you. CM2 delivers a proper mountain challenge through two significant climbs to the Hmong village headquarters, with technical descents that demand respect. The course features wide dirt roads and challenging single-track sections, making it perfect for competent road marathon runners seeking their first taste of serious elevation gain. This distance offers the right balance of accessibility and mountain authenticity.

Your gateway to trail running in Northern Thailand's mountains

CM1 offers newcomers to trail running the perfect introduction to Chiang Mai's challenging terrain. Despite being the shortest distance, this race delivers a genuine mountain experience with significant elevation gain across varied trail surfaces. The route combines single-track trails with dirt roads, featuring technical sections that will test your trail skills without overwhelming first-time ultra runners. Ideal for road marathon runners ready to explore vertical challenges and discover Thailand's trail running community.