Oslo, Norway · Saturday, May 30, 2026

Fixed Distance 50K

EcoTrail of Oslo 50 km

Race completed
50 km Distance
1,026 m Climbing
4.0 Grit · Challenging
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59.9127° N, 10.7461° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 21 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 9 hours 10:48 min/km average. Generous. Walkable throughout for most of the field. Tighter than 71% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →
Field size ~498 Large. Rarely out of sight of another runner.

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, May

Daytime high 14°C
Night low 5°C
Rainfall Showers likely
Daylight 18 h 06 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 259 m. Not a forecast.

Results history

Year Race Finishers Men's winner Women's winner
2026 50km 498 Joar Thele · 03:24:20 Veslemøy Rønnevik · 04:15:15
2025 50km 582 Anders Hekkli · 03:30:24 Stine Holager · 03:49:16
2024 50km 392 Simen Østensen · 03:21:58 Stine Holager · 04:01:55
2023 50km 217 Erik Sebastian Krogvig · 03:37:34 Ingrid M. Due-Gundersen · 04:33:51
2022 50km 269 Tobias Dahl Fenre · 03:18:01 Innika De Rosa · 04:17:12
2021 50km 189 Simon Pedersen · 03:55:41 Sofia Marie Lindberg · 04:25:33
2019 50km 371 David Andre Aasen · 03:36:44 Hanne Kristiansen-Haugland · 04:18:47
2018 50km 315 Paul Ogier · 03:53:28 Sylvia Nordskar · 04:12:29
2017 45km 423 Runar Saether · 03:42:19 Hilde Gudem · 04:16:01
2016 45km 442 Tom Erik Halvorsen · 03:11:52 Kristiane Fon Holmøy · 03:54:45

The field shrank 14% between 2025 (582) and 2026 (498). 33% of the 2026 field were women.

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.

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 50 km of trail with 1,026 m of ascent.

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

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

Komperdell

Carbon Ultralight Vario 4

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

$160 ★★★★★ 4.5

Suunto

Vertical

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

$630 ★★★★★ 4.5
All gear guides →

Overview

The EcoTrail of Oslo 50 km in Oslo, Norway, is a trail race run in May with a 9-hour time limit. With 498 finishers in its latest edition, this race has a bigger field than 98% of its 2650 peer 50k races.

The course features 1026 meters of elevation gain over 50 km, averaging 20.5 meters of climb per kilometer. The 9-hour cut-off translates to a 10.8 minutes per kilometer pace, which is tighter than 60% of 1011 comparable 50k races.

Similar races

Other 50K trail ultras, closest in distance first.