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Trail Running Calendar Oslo 2026-2027

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Explore the best trail runs in Oslo for 2026-2027! Our updated list features 24 exciting trail runs across the region. Find your next trail run in Oslo below and join the trail community at these great events!

August 2026
Aug
6
Th

Oslos Bratteste Prøveløp

Trail Run
Oslos Bratteste Prøveløp
Aug
14-23
Fr - Su

Korketrekker'n

Trail Run 4 km
Aug
22
Sa

Østmarka Trail Challenge

Trail Run 37 km
Aug
22
Sa

Janteloppet

Trail Run 7 km
Aug
25
Tu

Sørkedalsløpet

Trail Run 3 km 11 km
Sørkedalsløpet
Aug
26
We

KM terrengløp Oslo

Trail Run 4 km 6 km 8 km
Aug
27
Th

Mærraskallen

Trail Run 4 km 15 km
Aug
29
Sa

Kjelsåsløpet

Trail Run 8 km
Aug
29
Sa

Backyard Ultra RASK

Backyard Ultra 80 km
September 2026
Sep
5
Sa

Toughest — Oslo

Obstacle Run 4 km 8 km 16 km
Sep
19
Sa

Oslos Bratteste

Trail Run Walk 3 km
Oslos Bratteste
October 2026
Oct
10
Sa

Ivar Formos minneløp

Trail Run 3 km 10 km 17 km
Ivar Formos minneløp
Oct
11
Su

Rosa sløyfe-løpet Oslo

Urban Trail Walk 5 km
Oct
31
Sa

Bygdøy Backyard

Trail Run Backyard Ultra 7 km
November 2026
Nov
4
We

Martincrossen Trail Run

Trail Run 3 km 8 km
Nov
5
Th

NightRun - Oslo

Trail Run 9 km
NightRun - Oslo
Nov
5
Th

NightRun - Frydenberg

Trail Run
NightRun - Frydenberg
Nov
19
Th

Østmarka Trail Challenge – Hodelyktløpet

Trail Run 12 km
January 2027
Jan
10
Su

Lauritz Bergendahls Minneløp

Trail Run
February 2027
Feb
20
Sa

Holmenkollmarsjen

Trail Run
Holmenkollmarsjen
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