Fjällmaraton 100K

AUG
5
2027
100 km mountain trail from Fångåmon to Ottsjö with 3300 m ascent, official aid stations, recovery zone and Western States lottery qualification for sub 20 hour finishers.
Thu 5 Aug 2027
100 kilometers

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Fjällmaraton 100K

Fjällmaraton 100K is a mountain trail race of 100 km with approximately 3300 m of elevation gain. The route starts in Fångåmon and finishes in Ottsjö. The course leads via Nulltjärn to Vålådalen, follows the classic Fjällmaraton trail over Ottfjället and continues over Hållfjället, Grofjället and Välliste before reaching Ottsjö. A GPX file and race information documents are published for the course.

Runners must be self-sufficient between aid stations; carrying personal fluids or refilling from watercourses is expected. Drop bags are available at Ottsjö (51.5 km). Own crew or personal resupply is allowed at official stations but not along the course.

Stations are positioned along the route and provide water, sport drink (U Sport), gluten-free bars (U bar) and a mix of food items such as bananas, buns, coffee and broth; some stations also offer hot dog or vegetarian soup. The final station at the finish provides simple food.

A Recovery Zone near the finish offers a sauna and space to rest, and the Vivobarefoot 7K takes place in the afternoon to add activity in the finish area. Runners who complete the course within 20 hours qualify for entry to a Western States lottery. Visit the organization's website for the most recent information.

100 km
100k
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