Balkastadir, Iceland · Saturday, July 25, 2026

Fixed Distance 50K

Posthlaupid

Race completed

50 km Distance

560 m Climbing

3.3 Grit · Challenging

65.1321° N, 21.0625° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 11 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 7 hours 8:24 min/km average. Comfortable. Room to walk the climbs and stop at aid. Among the tightest 50K cut-offs we track. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~12 Tiny. You will run alone for most of it.

DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, July

Daytime high 14°C

Night low 6°C

Rainfall Mostly dry

Daylight 19 h 17 m of light

Regional 2001-2020 average for July — NASA POWER, grid elevation 317 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 50 km of trail with 560 m of ascent.

Trail Running Shoes50 km of trail — cushioning that is still there in the last quarter.
Race Nutrition50 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 50 km, without the bounce.
GPS WatchesBattery life first — a 50 km day outlasts most full-GPS modes.

Adidas

Terrex Speed Ultra

★★★★★ 4.5

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

Tailwind

Endurance Fuel

All-in-one calorie and electrolyte drink mix. 200 calories per serving.

$25 ★★★★★ 4.8

Salomon

ADV Skin 12

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

$180 ★★★★★ 4.8

COROS

APEX 2 Pro

GPS running watch with 75-hour GPS battery, topo maps, and training metrics.

$500 ★★★★★ 4.7

All gear guides →

Course Notes

Pósthlaupid (Iceland Post Trail Run) is a 50 km off-road race that starts at a Monument to Rural Postmen in Hrútafjördur in the west of Iceland. It is an old mailmen's route over Haukadalskard, along Haukadalur.

Similar races

Other 50K trail ultras, closest in distance first.