About
Vietnam Trail Marathon - 21K is a 21.6 km half marathon category race with 1,000m elevation gain in Vietnam. Terrain: mountain, forest. Rated moderate difficulty. Located near Mộc Châu, Son La.
Organized byTopas Travel
Difficulty
|20
Moderate32 KE
KM-Effort = distance (km) +elevation gain (m)100
Based on the ITRA standard.
Elevation Density46 m/km · Moderate
Elevation Density =elevation gain (m)distance (km)
Time limit:10h
Run Conditions
MountainForest
Weather in Jan
Temperature
10 – 18°C
Cool
Humidity
Extreme
Rainfall
56 mm
Light rain
Sunshine
6.6h/day
~10 rainy days expected
Registration
Deadline
Not specified
Entry fee
Early Bird – 2,800,000 VND(~$106)until Jun 25, 2026
Standard – 3,300,000 VND(~$125)
Travel & Logistics
VenueMuong Thanh Moc Chau Hotel
Google MapsView on Maps
Nearest airports
HAN - Noi Bai International Airport227 km | ~4h32 driving time
Race Day Info
GPX File
Not yet released, check again closer to race date
BiB Collection
Not available yet, check again closer to race date
Mandatory Gear
Not available — check the website for more details
Other Distances
Community
Reviews
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Race data is actively being refined. If something looks off, .
Sources: ahotu, website · Enriched 2026-06-24