EcoTrail Oslo is a 80km ultra marathon in Oslo, Norway. Distance: 80km. Elevation: 2,200m D+. Difficulty: moderate (Challenge Rating 31/100). DNF rate: 12%. Time limit: 16h. Surface: trail. Established 2013.
EcoTrail Oslo
Oslo, Oslo, Norway
"80km from the wilderness of Nordmarka forest to the steps of the Oslo Opera House."
A unique trail ultra running from deep Norwegian forest wilderness straight into the heart of Oslo — nature to city in 80km.
The Course
From the forests of Nordmarka to the Oslo Opera House on the waterfront. The course descends from wilderness into the heart of the Norwegian capital, blending forest trails, lakeside paths, and urban landmarks. A unique city-meets-wilderness concept.
hilly
point-to-point
7
530m
Runner Experience
Standard aid station support with food, drinks, and basic medical assistance at regular intervals.
Warm, inclusive finish line with a strong community feel. Runners celebrate together regardless of finish time.
Race Day Weather
12°C
6° – 18°
70%
35%
Early autumn in southern Norway. Pleasant running temperatures but can be wet. Cool in the forested early sections.
Stats & Records
2013
500
11:00:00
5:58:33
Didrik Hermansen (2022)
7:22:15
Eli Anne Dvergsdal (2023)
Entry
NOK 1200
January
months
Lore & Trivia
EcoTrail Oslo runs from the city centre into the Nordmarka forest — the vast wilderness that surrounds Norway's capital. The course climbs from Oslo Fjord through urban parks, suburban forest trails, and into genuine Nordic wilderness within kilometres of the city centre. It's the signature urban-to-wild race format, and Oslo — where the forest starts at the end of the metro line — is the perfect city for it.
- ▸ The race finishes at the iconic Oslo Opera House, where runners descend from forest to waterfront.
- ▸ Nordmarka forest, where the race starts, is Oslo's 'backyard wilderness' — 1700km² of forest and lakes.
- ▸ The EcoTrail concept originated in Paris and has expanded to cities worldwide.
- ▸ The transition from wilderness to urban running is dramatic — one moment you're in deep forest, the next crossing city bridges.
- ▸ Established in 2013.
Oslo's forest starts where the tram line ends. You can run from the opera house to the wilderness in 30 minutes.
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Frequently Asked Questions
How long is EcoTrail Oslo? +
EcoTrail Oslo is a 80km (80km) ultra marathon with 2,200m of elevation gain. The course is point-to-point on trail terrain.
How hard is EcoTrail Oslo? +
EcoTrail Oslo is rated moderate with a Challenge Rating of 31/100 (Moderate). The DNF rate is 12%. Runners have 16 hours to finish.
What is the weather like at EcoTrail Oslo? +
Average temperature is 12°C (range 6°C to 18°C) with 70% humidity and a 35% chance of rain. Early autumn in southern Norway. Pleasant running temperatures but can be wet. Cool in the forested early sections.
Are crew and pacers allowed at EcoTrail Oslo? +
No crew access is permitted. Pacers are not allowed.
What is the course record for EcoTrail Oslo? +
The men's course record is 5:58:33 set by Didrik Hermansen in 2022. The women's course record is 7:22:15 set by Eli Anne Dvergsdal in 2023.
What is the average finish time for EcoTrail Oslo? +
The average finish time is 11:00:00. About 500 runners finish each year. The DNF rate is 12%.
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