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EcoTrail Oslo
The EcoTrail Oslo is a hilly course of 10 km with 1,170.1 m of climbing. Its lowest point is 2 m and its highest 483 m above sea level. Next race: Saturday 29 May 2027, starting at 07:00.
At a glance
- Race day
- The 2027 race
- Start
- 07:007:00 AM
- Distance
- 10.0 km6.2 mi
- 10K · 21 km · 31 km · 50 km · 80 km
- Total climb
- 1170.1 m3839 ft
- Highest point 481 m1578 ft above lowest
The course
Pick a place, or drag along the profileThe 80 km starts at Nedre Foss Park, climbs the Akerselva to Maridalsvannet and the Nordmarka forest, passes the Holmenkollen ski jump at 32 km and finishes at Huk on Bygdoy.
StartFinish
© OpenStreetMap contributors
- Photo: Leonhard Lenz, CC0
- Photo: Sean Hayford O'Leary (Seansie), CC BY 2.0
- Photo: Steinar Midtskogen ( Midtskogen ), Public domain
- Photo: Grzegorz Wysocki, CC BY 3.0
km 0.1mile 0.1
Nedre Foss
The start area, Nedre Foss Park by the Akerselva, with the first 10 km running upstream along the river.
Photo: Leonhard Lenz, CC0
km 16.8mile 10.5
Fagervann
The climb from Honefoten to Fagervann at 416 m, which the organiser says is worth the effort, followed by slippery roots on the way down.
km 24.7mile 15.4
Sognsvann
One of the places where the trail touches the city, a favourite with runners and swimmers, next to a metro station.
Photo: Sean Hayford O'Leary (Seansie), CC BY 2.0
km 28.9mile 18
Vettakollen
Vettakolltoppen, 419 m, with a view over the city and the fjord and a photographer waiting for the 80 km runners.
km 33.6mile 20.9
Holmenkollbakken
The first food station, at about 32 km, is at Holmenkollen where the 50 km starts, beside the ski jump.
km 60.8mile 37.8
Bogstadvannet
The route runs along this lake, a popular walking area, before the descent along the Lysakerelva.
Photo: Steinar Midtskogen ( Midtskogen ), Public domain
km 80mile 49.7
Huk
The finish since 2026, at Huk on Bygdoy.
Photo: Grzegorz Wysocki, CC BY 3.0
Height drawn many times taller than life · GEDTM30
0 20 40 60 80 km
0 10 20 30 40 49.7 mi
Dashed: bridge
- Through the Nordmarka to the Bygdoy shoreRiver, forest, Holmenkollen, then the fjord to Bygdoy.
- From the fjord to 483 m, with 1,991 m of climbingHigh point 483 m at 36.4 km; the organiser counts 1,991 m of climbing.
- Seven in the morning, 13 hours 30 minutes, 400 places07:00 start, 13 h 30 limit, 400 runners at most.
Course notes 3 short reads on the course
Whole courseLandmarkThrough the Nordmarka to the Bygdoy shoreRiver, forest, Holmenkollen, then the fjord to Bygdoy.
The first 10 km follow the Akerselva upstream to Maridalsvannet, Oslo’s drinking water, with the first aid station at Maridalen church at about 13.4 km. The route then climbs from Honefoten to Fagervann at 416 m and passes Sognsvann and the Vettakollen summit at 419 m. After Holmenkollen come Sorkedalen, Bogstadvannet and the Lysakerelva down to Lysaker station, then Vaekeroparken and the fjord path to Bygdoy. The mix is forest roads, technical and easier trail, and about 9% asphalt.
Sourced
km 0 to 83GradientFrom the fjord to 483 m, with 1,991 m of climbingHigh point 483 m at 36.4 km; the organiser counts 1,991 m of climbing.
The lowest point is 2 m near the fjord shore at 71.3 km and the highest is 483 m at 36.4 km, after the Holmenkollen aid station. The organiser gives 1,991 m of climbing on 80.2 km. The organiser says the distance is over 80 km and that watches measure differently. In 2026 the finish moved to Huk on Bygdoy and the last 10 km of every distance gained more climbing, 204 m up and 200 m down against 61 m and 60 m before, by Strava’s algorithms. The 80 km course record is 5:57:03, set by Didrik Hermansen in 2025.
Measured
Whole courseTacticsSeven in the morning, 13 hours 30 minutes, 400 places07:00 start, 13 h 30 limit, 400 runners at most.
Aid stations close at Holmenkollen (32 km) at 13:00, Sorkedalen (51 km) at 16:00, Fossum (61 km) at 17:30 and Thaugland, about 8.5 km before the finish, at 19:00. Support is allowed only inside the stations and there are no drop bags. The event also has 10, 21, 31 and 50 km trail races and a 21 km walk.
Sourced
Race weekend
Bib pickup at Anton Sport, Bogstadveien 2, OsloWednesday 26 May Bib pickup
-
10:0010:00 AM–19:007:00 PM
Bib pick-up Anton Sport, Bogstadveien 2, Oslo. Also open on Thursday and Friday, 10:00 to 19:00.
Bib in hand?A number belt holds it without pins through your race top. Clip it on tonight.
Number belt on AmazonAmazon partner link
Saturday 29 May Race day
-
06:156:15 AM–06:556:55 AM
Bib pick-up at the start area Nedre Foss Park -
until 13:001:00 PM
Holmenkollen aid station closes Thomas Heftye villa, Holmenkollen
Cut-offs and other races (5)
-
07:007:00 AM
80 km start Nedre Foss Park. The baggage truck leaves at 07:00; a small bag with a bib tag goes to the finish and must be handed in 10 minutes before the start. The finish is at Huk, Bygdoy. -
until 16:004:00 PM
Sorkedalen aid station closes (51 km) Sorkedalen Idrettsanlegg -
until 17:305:30 PM
Fossum aid station closes (61 km) -
until 19:007:00 PM
Thaugland drink station closes -
until 20:308:30 PM
80 km time limit: timing mat stays until 20:30 Huk, Bygdoy. 13 hours 30 minutes from the start. Finish area take-down from 20:00.
Times as published by the organiser, in Oslo time, checked . Confirm on their site before you travel.
The forecast for Saturday
Race morning, on the record
We hold no start time for this race, so the record is read at 09:009:00 AM, local time.
Add to calendar .ics file, times in Oslo time
Entry
Race fuel
Energy gel
No gel needed at this pace
Finish
One every 40 minutes, the orange marks on the profile, by the clock:
Under about 75 minutes most runners need no gel: water at the aid stations does it.
For your long training runs:
Our pick: SiS BETA Fuel gel, box of 6, strawberry and lime. 40 g of carbohydrate a gel, about twice a usual gel, from two kinds of sugar your body takes up side by side. Enough for race day and two test long runs.
Easy to forget on race morning: pack them with your bib the night before.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
In Canada the button opens GU Energy Gel, Salted Caramel, 24-pack, the best seller there.
Outside the Netherlands, Belgium, Germany, Austria and Switzerland, the UK and Ireland, Spain and Portugal, Italy, the rest of the EU and Canada the button opens GU Energy Gel, Chocolate Outrage, 24-pack on Amazon.com, the best seller there.
Anti-chafe
Compeed anti-blister stick, 8 ml
An invisible layer before the start keeps seams, straps and shoes from rubbing skin raw.
Put it on before you leave for the start: heels and toes, inner thighs, under a bra or heart-rate strap.
Try it on a long run first, like everything you use on race day.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
Number belt
Compressport Race Belt
Holds your bib without safety pins through your top, with loops for up to 8 gels.
Clip the bib on the night before, so it goes on with your shorts in the morning.
Keep the number on the front, where officials and photographers can see it.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
Electrolytes
SiS Hydro electrolyte tablets, tube of 20
One tablet in a bottle puts back some of the salt you sweat out.
One tablet in 500 ml of water in the hour before the start.
Only if you have used them in training: nothing new on race day.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
Blister plasters
Compeed blister plasters, medium, 6
One in a pocket cushions a blister if one starts.
Put it on clean, dry skin and leave it until it comes off by itself.
Give a couple to whoever comes to cheer, so they are there at the km you need them.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
Keep exploring
More races to look at after the EcoTrail Oslo.
