Kvarsebo Kolmården, Sweden · Saturday, July 4, 2026
Fixed Distance Marathon
Kolmården Ultra Trail 45K
Race completed
45 km Distance
not publishedn/a Climbing
2.3 est Grit · Entry level
Calculated from 45 km alone — the organiser has not published an elevation profile. Read 2.3 as a floor, not a verdict.
What the course asks
Field size ~60 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2026 edition (45km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, July
Daytime high 21°C
Night low 15°C
Rainfall Mostly dry
Daylight 18 h 12 m of light
Regional 2001-2020 average for July — NASA POWER, grid elevation 25 m. Not a forecast.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 45 km of trail.
- Trail Running Shoes45 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition45 km of self-supported fuelling between aid stations.
- Hydration VestsFlask capacity for 45 km, without the bounce.
- GPS WatchesBattery life first — a 45 km day outlasts most full-GPS modes.
Course Notes
Hiking Trails, Technical Trail Running
Similar races
Other Marathon trail ultras, closest in distance first.