Races

Fjällmaraton 100k

SwedenJuly

Sweden, July. 100 km on 75% trail. +1,018 ft of climbing. 20 hours cutoff.

63 mi+1,018 ft-959 ft20 hours1,191 ft to 1,323 fttech 5/10Checkpoints per race booknew WSER qualifierWSER qualifierJuly
Distance63 mi
Gain+1,018 ft
Loss-959 ft
Altitude1,191 ft to 1,323 ft
Technicality5/10
Air40°F to 80°F
Gradient profileOfficial race GPX
  • Start1,191 ft
  • High1,323 ft
  • Low1,191 ft
  • Finish1,250 ft

Geometryderived

Steepest drop82 ft-0.7% over 2.2 mi
Night miles8 misunset near 21:00 local

The cruxForest trails, rolling cols, and weather swings (near mile 40)

Course DNA

The Course

Fjällmaraton 100k runs 100 km through Sweden. +1,018 ft gain and -959 ft loss. Surfaces skew 75% trail / 20% dirt road / 5% paved. Forest trails, rolling cols, and weather swings. High point near 1,323 ft. Low near 1,191 ft. July temps run 40°F to 80°F. The course rewards patience early and punishes rushed descents after mile 31.

The Work

Train for 1,018 feet of climbing across 100 km. Back-to-back long runs on trail. Practice power-hiking grades above 15 percent. 20 hours total means limited margin: rehearse fueling every 45 to 60 minutes and downhill eccentric work weekly. Technicality 5/10. Build a block that simulates the crux near mile 40.

Kit

July in Sweden: plan for 40°F to 80°F. Mandatory shell if rain is in forecast. Headlamp with spare batteries if 20 hours pushes past dark. Poles help on sustained climbs above mile 16. Vest capacity for 2 liters minimum. Shoes matched to 75% trail: lugs for mud, rock plate if the course turns technical after mile 31.

Race Day

Hold effort through mile 16. The field often splits on the first big climb after mile 31. Forest trails, rolling cols, and weather swings near mile 40 is where time is won or lost. Walk the steep pinches. Run the flats and gentle downhills. Crew at major aids: socks, calories, ice if hot. Transitions under 5 minutes when possible. Final third is 21 miles of fatigue management. Finish with reserve for the last descent.

Fjällmaraton 100k