Ultravasan 45 starts in Oxberg and runs through hilly terrain around the beautiful Oxberg lake, via genuine summer pastures, through deciduous and coniferous forests before heading back into the Vasaloppet Arena, passing the checkpoints in Oxberg, Hökberg and Eldris. Experience the Vasaloppet atmosphere at your own pace: walk, jog or run – you have 11.5 hours.
Ultravasan 45
Experience an ultramarathon on historic Vasaloppet land.
- Date 2025 16 Aug
- Distance 45 km
- Elevation 580 m
- Technique Trail
- Type Competition
- Age * From 17 years
- Start Time 09:00
- Race order number 12
- Registration fee 935 SEK
- Max participants 1,500

Vasaloppet’s Summer Week
Vasaloppet's Summer Week consists of various bike and running races held during two weekends in August. The races take place in the ninety-kilometre Vasaloppet Arena between Sälen and Mora.

Hemmavasan Löpning 2025
The home edition of Vasaloppet, Hemmavasan, is a complement to Vasaloppet's Summer Week 2025. While the regular races are held on location, from Sälen to Mora, from Friday, August 8, to Saturday, August 16, you can participate in a race at any location around the world – in the digital Vasaloppet Arena.
We’ll help you from Sälen to Mora
So what should I do now?
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Important to know
Some things to keep track of before the race.
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Accommodation
Accommodation
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Traffic and transport
On your way or already here?
News
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6 days ago
Roadworks in progress – important information for drivers during Vasaloppet's Summer Week 2025
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6 days ago
Updated course routes for Vasaloppet’s Summer Week 2025
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2 weeks ago
First race in the Vasaloppet Arena? This guide is for you
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3 weeks ago
Cycle safely, both in training and in races
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3 weeks ago
Smart summer training for skiers
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3 weeks ago
More even surface on the start hill ensures fairer conditions