Phu Wiang, Thailand · Sunday, February 7, 2027
Fixed Distance 50 mi
Ultra Trail Phu Wiang
144 days away
63 km Distance
1,680 m Climbing
5.7 Grit · Challenging
What the course asks
Climbing rate 27 m / km
Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 14 hours
13:20 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 76% of 50 mi races. Measured against 455 races of the same distance. Cut-off calculator →
Field size ~49 Small. Long stretches with nobody in sight.
DUV results for the 2026 edition (63km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, February
Daytime high 34°C
Night low 20°C
Rainfall Dry — rain unlikely
Daylight 11 h 29 m of light
Regional 2001-2020 average for February — NASA POWER, grid elevation 223 m. Not a forecast.
The Aid Station
Course-specific beta from the community
This is a rolling course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 63 km of trail with 1,680 m of ascent.
- Trail Running Shoes27 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition63 km of self-supported fuelling between aid stations.
- Hydration VestsPole attachment and chest-strap stability on steep ground.
- Trekking Poles1,680 m of ascent to walk up.
- HeadlampsA 14 h limit puts you out there after dark.
Similar races
Other 50 mi trail ultras, closest in distance first.