About
Muser100 - 166K is a 166 km ultra race with 6,400m elevation gain in Thailand. Terrain: mountain, forest. Rated herculean difficulty. Located near Mueang Tak, Tak.
Organized byTak Trail Series Thailand
Difficulty
|5
Herculean230 KE
KM-Effort = distance (km) +elevation gain (m)100
Based on the ITRA standard.
Elevation Density39 m/km · Moderate
Elevation Density =elevation gain (m)distance (km)
Time limit:52h
Run Conditions
MountainForest
Weather in Sep
Temperature
20 – 25°C
Mild
Humidity
Extreme
Rainfall
320 mm
Monsoon
Sunshine
7.4h/day
~26 rainy days expected
Registration
Website
Deadline
Jun 30, 2026
Entry fee
6,500 THB(~$198)(tiered pricing)
Travel & Logistics
VenueTak Agricultural Research and Development Center, Mae Tho, Mueang District, Tak
Google MapsView on Maps
Nearest airports
MAQ - Mae Sot Airport75 km | ~1h30 driving time
Race Day Info
GPX File
Not yet released, check again closer to race date
BiB Collection
17-18 Sep 2026
Mandatory Gear
Not available — check the website for more details
Other Distances
Community
Reviews
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Sources: eventrunning · Enriched 2026-04-26