How hilly is the NUTS Karhunkierros Ultramarathon?
The NUTS Karhunkierros Ultramarathon is described as hilly. The course listing puts the climb at 4,245 m.
NUTS Karhunkierros Ultramarathon
This race edition
- Race date
- Date not confirmed for this distance
- Race timezone
- Timezone not confirmed
- Edition status
- Status not confirmed
Entry options
2027 edition
Entry options are not yet confirmed for this edition. Check the organiser before making plans.
Official event website & entry ↗Data current as of
Decision summary
NUTS Karhunkierros Ultramarathon at a glance
- Cut-off average pace
- 13:01/km
- Typical conditions
- 93/100
- Evidence depth
- 33 verified facts
36:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.
Historical race-date favourability, not a forecast
Source facts available
Route details
Known course facts at a glance
NUTS Karhunkierros Ultramarathon has known course details for its ultramarathon race. The summary below keeps the focus on what is confirmed for the course.
- Official distance
- 166 km
- Terrain
- Trail, Fell
- Scenery
- Parkland, Mountain, Forest, Riverside, Lakeside
Quick answers
What runners ask first
Where does the NUTS Karhunkierros Ultramarathon route go?
The NUTS Karhunkierros Ultramarathon route finishes at All distances finish in Ruka Village (Rukan kävelykylä), the event centre. Underfoot, expect natural hiking trail (single-track and forest paths) through Oulanka National Park, including technical sections, hilltops/fells, river gorges and suspension (hanging) bridges. It passes Karhunkierros (Bear's Ring) trail, Oulanka National Park, Kiutakongas rapids (Oulankajoki river), Jyrava rapids (Kitkajoki river) and Oulanka Visitor Centre. Set in Oulanka National Park, famed for free-flowing rivers, dramatic rapids and waterfalls, aapa mires, deep wilderness forest and fell summits.
What should runners know on race day for the NUTS Karhunkierros Ultramarathon?
Drop-bag service offered on the longer races; for the 166 km, drop bags are carried to the Oulanka Visitor Centre and to the Hautajarvi turnaround point.
Race character
Scenery
- Parkland
- Mountain
- Forest
- Riverside
- Lakeside
Atmosphere
- Wilderness
- Destination
- Scenic Tour
Terrain
- Trail
- Fell
- Elevation character
- Hilly
- Technicality
- Technical
- Source-stated ascent
- 4,245 m
Entry, logistics and records
Records and field
- Women's course record
- 20:12:28 (Eevi Bengs)
- Field size
- A total of 3,412 runners started across the various distances at the 2025 edition (about a 10% increase on the previous year); the organiser describes over 3,000 runners taking part across all distances.
Entry requirements
- Entry status
- Open entry: The held registration model is open entry and this edition is not marked sold out.
- Cut-off
- 36:00:00
- Qualification status
- No qualifying standard; open entry. The 83 km carries 3 ITRA performance points.
Race day logistics
- Bag drop
- Drop-bag service offered on the longer races; for the 166 km, drop bags are carried to the Oulanka Visitor Centre and to the Hautajarvi turnaround point.
- Race village
- No
Access and course status
- Finish
- All distances finish in Ruka Village (Rukan kävelykylä), the event centre.
Course facts
- Surface
- Natural hiking trail (single Track and forest paths) through Oulanka National Park, including technical sections, hilltops/fells, river gorges and suspension (hanging) bridges.
- Landmarks
- Karhunkierros (Bear's Ring) trail, Oulanka National Park, Kiutakongas rapids (Oulankajoki river), Jyrava rapids (Kitkajoki river), Oulanka Visitor Centre, suspension/hanging bridges, Konttainen fell, Ruka fell, Hautajarvi (Arctic Circle)
- Notable features
- Set in Oulanka National Park, famed for free-flowing rivers, dramatic rapids and waterfalls, aapa mires, deep wilderness forest and fell summits
- the 83 km and longer routes start at the Arctic Circle (Hautajarvi)
What are typical race-day conditions?
- 9°CTypical temperature
- 17 kphTypical wind
- 2 mmTypical rainfall
- 93Favourability /100