About
A flat loop ultra on a 2.3km circuit through Huai Muang Public Park. Runners complete 44 laps through the night under floodlights, with aid stations and hot meals at the centre. Ubon Ratchathani's Pha Taem National Park and its prehistoric cliff paintings are a 90-minute drive north.
Organized byUbonratchathani 100K Ultra Marathon
Difficulty
Not part of any indexed race series.
Hard100 KE
KM-Effort = distance (km) +elevation gain (m)100
Based on the ITRA standard.
Elevation Density0 m/km · Easy
Elevation Density =elevation gain (m)distance (km)
Time limit:18h
Run Conditions
Road
Registration
Website
Register
Deadline
Sep 20, 2026
Entry fee
Early Bird – 1,700 THB(~$52)until Jul 20, 2026
Regular – 1,900 THB(~$58)until Sep 20, 2026
Travel & Logistics
VenueHuai Muang Public Park, Nai Mueang, Mueang, Ubon Ratchathani
Google MapsView on Maps
Nearest airports
UBP - Ubon Ratchathani International Airport6 km | ~12min driving time
Race Day Info
GPX File
Not yet released, check again closer to race date
BiB Collection
5 Dec 2026, 09:00–14:00
Mandatory Gear
Not available — check the website for more details
Community
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Sources: ultraholic-image, website · Enriched 2026-09-02