Trekyllisvik, Iceland · Saturday, August 15, 2026

Fixed Distance 50K

Trekyllisheidin

Race completed

48 km Distance

1,150 m Climbing

4.1 Grit · Challenging

What the course asks

Climbing rate 24 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 8 hours 10:00 min/km average. Generous. Walkable throughout for most of the field. Tighter than 79% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →

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

DUV results for the 2025 edition (48km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, August

Daylight 16 h 44 m of light

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	48km	12	Felix Maximilian Starker · 04:25:44	Naomi Hartopp · 06:40:58
2024	48km	7	Felix Maximilian Starker · 04:06:21	Rannveig Halldorsdottir · 06:54:18
2023	48km	6	Felix Maximilian Starker · 04:14:42	—
2022	47km	6	Josep Magnusson · 04:22:29	Lilli Marie Myhre Ofstad · 04:58:53
2021	47km	17	Bui Steinn Karason · 04:28:48	Valdis Sigurvinsdottir · 06:01:06

The field grew 71% between 2024 (7) and 2025 (12). 17% of the 2025 field were women.

DUV results for the 2025 edition (48km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a rolling 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 48 km of trail with 1,150 m of ascent.

Trail Running Shoes 24 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 1,150 m of ascent to walk up.
GPS Watches Battery life first — a 48 km day outlasts most full-GPS modes.

Adidas

Terrex Speed Ultra

RunRepeat found the Adidas Terrex Speed Ultra to have a grippy outsole and great lockdown, while iRunFar noted that the shoe works on a variety of trail conditi…

★★★★★ 4.5

Salomon

Sense Ride 5

RunRepeat found the Salomon Sense Ride 5 to have immaculate lockdown and a smooth and stable ride, making it confident on moderate trails and steep downhills. I…

★★★★★ 4.5

Skratch Labs

Sport Hydration Mix

Clean electrolyte drink mix with real fruit flavor. Low sugar.

$20 ★★★★★ 4.5

Salomon

ADV Skin 12

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

$180 ★★★★★ 4.8

Komperdell

Carbon Ultralight Vario 4

4-section folding carbon poles with compact pack size for mandatory gear.

$160 ★★★★★ 4.5

Garmin

Enduro 3

Ultra-endurance GPS watch with solar charging and 300+ hour battery in GPS mode.

$900 ★★★★★ 4.8

All gear guides →

Overview

Trekyllisheidin is a 48-kilometer trail race in Trekyllisvik, Iceland, held in August. The 1150 meters of elevation gain mean 24 meters of climb per kilometer, making this a challenging 50k for its distance.

With an 8-hour time limit, the cutoff pace is 10 minutes per kilometer. This cutoff is tighter than 77% of 50k races, leaving little margin for error. The field size of 12 finishers in 2025 places it in the smallest 18% of 50k races, with a total of 2651 peer races.

Similar races

Other 50K trail ultras, closest in distance first.