Siem Reap, Angkor, Cambodia · Saturday, January 23, 2027

Fixed Distance 50 mi

Ultra Trail dAngkor 64km - Bayon Trail

77 days away

64 km Distance

540 m Climbing

4.0 Grit · Challenging

13.3618° N, 103.8606° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 8 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 14 hours 13:08 min/km average. Generous. Walkable throughout for most of the field. More forgiving than 75% of 50 mi races. Measured against 486 races of the same distance. Cut-off calculator →

Field size ~85 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (64km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, January

Daytime high 33°C

Night low 21°C

Rainfall Dry — rain unlikely

Daylight 11 h 28 m of light

Regional 2001-2020 average for January — NASA POWER, grid elevation 37 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 64 km of trail with 540 m of ascent.

Trail Running Shoes64 km of trail — cushioning that is still there in the last quarter.
Race Nutrition64 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 64 km, without the bounce.
HeadlampsA 14 h limit puts you out there after dark.
GPS WatchesBattery life first — a 64 km day outlasts most full-GPS modes.

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

New Balance

Fuel Cell Super Comp Trail

★★★★★ 4.5

Spring Energy

Awesome Sauce

Real food gel with 180 calories. Rice-based with natural flavors.

$4 ★★★★★ 4.6

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Petzl

NAO RL

1500-lumen reactive lighting headlamp with 15-hour runtime. Automatic brightness adjustment.

$150 ★★★★★ 4.7

Suunto

Vertical

Titanium GPS watch with solar charging, offline maps, and 140-hour GPS battery.

$630 ★★★★★ 4.5

All gear guides →

Course Notes

Runners will cross several exceptional sites dominated by mountains and temples, evolving through impressive landscapes over a vast area where rice fields, forests, villages offer panoramas of surprising diversity.

Similar races

Other 50 mi trail ultras, closest in distance first.