Ultra Running Hub Árskógur, Iceland · Saturday, July 4, 2026
Thorvaldsdalsskokkid Terrain Run
What the course asks
Typical conditions, July
Regional 2001-2020 average for July — NASA POWER, grid elevation 101 m. Not a forecast.
Course notes
- terrain This is a rolling course. Expect fast, runnable sections where rhythm is key.
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 48 km of trail with 1,465 m of ascent.
- Trail Running Shoes 31 m of climb per kilometre — grip and rock protection before cushioning.
- Race Nutrition 48 km of self-supported fuelling between aid stations.
- Hydration Vests Pole attachment and chest-strap stability on steep ground.
- Trekking Poles 1,465 m of ascent to walk up.
- GPS Watches Battery life first — a 48 km day outlasts most full-GPS modes.
Overview
Held in Árskógur, Iceland, the Thorvaldsdalsskokkid Terrain Run covered 48 kilometers with an aggressive cutoff schedule that pushed runners harder than most events at this distance. The 8-hour time limit required an average pace of 10 minutes per kilometer, creating a deadline tighter than 78% of 50k cut-offs across 1052 peer races, and more generous than only 22%.
Maintaining that pace proved demanding over a profile featuring 1465 meters of total elevation gain, averaging 30.5 meters of climb per kilometer across the trail course.
Similar races
Other 50K trail ultras, closest in distance first.