Prachin Buri, Thailand · Sunday, September 6, 2026
Fixed Distance 50K
Ultra-Trail Khao Eto
Race completed
58 km Distance
not publishedn/a Climbing
2.9 est Grit · Entry level
Calculated from 58 km alone — the organiser has not published an elevation profile. Read 2.9 as a floor, not a verdict.
What the course asks
Time limit 16.5 hours
17:04 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. More forgiving than 89% of 50K races. Measured against 1007 races of the same distance. Cut-off calculator →
Field size ~56 Small. Long stretches with nobody in sight.
DUV results for the 2025 edition (58km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, September
Daytime high 30°C
Night low 24°C
Rainfall Wet — expect rain
Daylight 12 h 20 m of light
Regional 2001-2020 average for September — NASA POWER, grid elevation 51 m. Not a forecast.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 58 km of trail.
- Trail Running Shoes58 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition58 km of self-supported fuelling between aid stations.
- Hydration VestsFlask capacity for 58 km, without the bounce.
- HeadlampsA 16.5 h limit puts you out there after dark.
- GPS WatchesBattery life first — a 58 km day outlasts most full-GPS modes.
Similar races
Other 50K trail ultras, closest in distance first.