Björnfrossa Ultramarathon took place on Sat, Oct 3, 2026 in Sandviken, Sweden. The main route is 65 km.
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- Date
- Sat, Oct 3, 2026
- Start
- Sandviken 🇸🇪
- Distance
- 65 km
- Climbing
- 1,200 m
- Level
- Open to all
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Start freeBjörnfrossa ultramaraton is a 65 km trail running race through the bear country and forests of Gästrikland, featuring technical paths and gravel roads with about 1200 metres of elevation gain.
What this race demands
Björnfrossa Ultramarathon requires sustaining forward motion across a 65 km distance on technical forest paths and gravel roads while managing 1200 metres of elevation gain.
Distance and Durability
Covering 65 km on foot demands extensive musculoskeletal resilience to handle repetitive impact over many hours.
Technical Footwork
Navigating the technical paths of Gästrikland requires sustained concentration, agility, and economy on uneven terrain.
Climbing Capacity
Accumulating 1200 metres of elevation gain across the route necessitates efficient pacing on ascents and descents.
Given the extended duration, athletes should consume 60 to 90 grams of carbohydrates per hour to maintain energy balance.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Frequently asked questions
When is Björnfrossa Ultramarathon?
Björnfrossa Ultramarathon took place on Sat, Oct 3, 2026 in Sandviken, Sweden.
How long is Björnfrossa Ultramarathon?
The main route is 65 km.
What does Björnfrossa Ultramarathon demand?
Björnfrossa Ultramarathon requires sustaining forward motion across a 65 km distance on technical forest paths and gravel roads while managing 1200 metres of elevation gain.
How much climbing does Björnfrossa Ultramarathon have?
Björnfrossa Ultramarathon has 1,200 m of climbing.
Who is Björnfrossa Ultramarathon for?
Björnfrossa Ultramarathon is open to all participants.
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