Chedi 20 is a 17.0 km trail race of HOKA Chiang Mai Thailand by UTMB 2025 in Chiang Mai, Thailand. The race starts on November 29, 2025.
By gradient, 23% of the distance is uphill, 18% downhill and 59% flat. The longest climb runs 2.1 km at an average 12.0% grade (255 m of vertical). The longest descent runs 1.4 km at 17.6% (250 m of vertical). The steepest climb averages 35.2% over 0.2 km. The steepest descent drops at 26.4% over 0.9 km. Surface: 39% road, 35% trail, and 26% smooth. Flat-equivalent effort: 26.5 FlatKM.
Poles bring little benefit here — only about 2.2 km of pole-friendly terrain.
Runnable descent is too short to damage the quads: plan the race around climbing and fuelling.
Historically on race day, start temperatures range from 19°C to 25°C, around 23°C at the highest point; the chance of precipitation is about 13%.
941 finishers completed the 2025 edition. Men's winner: Parattakorn Suppalapwattana (Thailand) in 1:38:31. Women's winner: Natalia Mastrota (Italy) in 1:47:21.
This page has the full results and splits, interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Chedi 20.
Other distances of HOKA Chiang Mai Thailand by UTMB 2025Chiang Dao 160 (168 km)·Elephant 100 (96.0 km)·Hmong 50 (56.0 km)·Hmong 50 Night (56.0 km)·Inthanon 50 (39.0 km)·Suthep 20 Night (21.0 km)·Suthep 20 Day (21.0 km)·Inthanon 20 (20.0 km)
Official websitechiangmai.utmb.world
