About
Soimalai Winter Season - 100K is a 100 km ultra race with 5,300m elevation gain in Thailand. Terrain: mountain, forest, alpine. Rated very hard difficulty. Located near Tak, Tak.
Organized byTak Trail Series Thailand
Difficulty
|6
Very Hard153 KE
KM-Effort = distance (km) +elevation gain (m)100
Based on the ITRA standard.
Elevation Density53 m/km · Hard
Elevation Density =elevation gain (m)distance (km)
Time limit:30h
Run Conditions
MountainForestAlpine
Weather in Dec
Temperature
20 – 28°C
Warm
Humidity
High
Rainfall
7 mm
Dry season
Sunshine
10.6h/day
~2 rainy days expected
Registration
Website
Deadline
May 31, 2026
Entry fee
5,100 THB(~$155)(tiered pricing)
Travel & Logistics
VenueKaeng Huai Tak Protected Area, Tak
Google MapsView on Maps
Nearest airports
MAQ - Mae Sot Airport129 km | ~1h46 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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Sources: eventrunning · Enriched 2026-04-26