DNB Oslo Marathon 10K or Trondheim Skogsmaraton 10K — which comes out ahead?

DNB Oslo Marathon 10K has the stronger available profile on flat grade share, course flatness and scenery score.

Route comparison snapshot

DNB Oslo Marathon 10K

Mapped route
Held
Elevation profile
Held
course flatness
1.4% Favoured
flat grade share
49.8% Favoured
lower ascent
128 m
climbing density
12.8 m/km
net elevation
-2 m
maximum grade
13.3%

Trondheim Skogsmaraton 10K

Mapped route
Held
Elevation profile
Held
course flatness
4.2%
flat grade share
32.0%
lower ascent
232 m
climbing density
22.1 m/km
net elevation
-0 m
maximum grade
19.4%
Head-to-head comparison
MetricDNB Oslo Marathon 10KTrondheim Skogsmaraton 10K
Flat grade share49.8%32.0%
GAP factor (% slower than flat)1.4%4.2%
Uphill share25.8%30.5%
Steep-up share4.4%15.2%
Downhill share24.4%37.5%
Total ascent (m)128 m232 m
Climbing density (m/km)12.8 m/km22.1 m/km
Longest climb length (m)890 m770 m
Longest climb gain (m)18 m64 m
Longest climb average grade2.0%8.3%
Total descent (m)130 m232 m
Net elevation (m)-2 m-0 m
Max absolute grade13.3%19.4%
Start elevation (m)12 m186 m
Finish elevation (m)10 m186 m
Scenic score68/10060/100
Conditions84/10085/100

Only metrics available for at least one side are shown. A ✓ marks the better value for each metric (higher-is-better aware). Scores are out of 100 when available. Ascent, climbing density, max absolute grade and median finish describe course or field context and are not marked as better or worse.

Race facts that change the decision

Race facts comparison
FactDNB Oslo Marathon 10KTrondheim Skogsmaraton 10K
Schedule

Exact race date not confirmed. Event weekend starts 2026-09-12 (legacy event-level date).

Exact race date not confirmed. Event weekend starts 2026-10-03 (legacy event-level date).

LocationOslo, NorwayTrondheim, Norway
Actual distance10 km10.5 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
SurfaceUnavailableMixed gravel, asphalt and terrain through forest, including a steep climb nicknamed "monsterbakken" up to Lian
Elevation characterUnavailableHilly
TerrainRoadTrail
SceneryCity, Waterfront, Coastal, Historic, ParklandCountryside, Forest, City, Lakeside
AtmosphereBig City, Festival, Scenic TourCommunity, Scenic Tour
Total ascent128 m232 m
Climbing density12.8 m/km22.1 m/km
Total descent130 m232 m
Net elevation-2 m-0 m
Max absolute grade13.3%19.4%
Flat grade share49.8%32.0%
GAP factor1.4%4.2%
Cutoff1:45:00Unavailable
Entry modelOpenOpen

Schedule

DNB Oslo Marathon 10K

Exact race date not confirmed. Event weekend starts 2026-09-12 (legacy event-level date).

Trondheim Skogsmaraton 10K

Exact race date not confirmed. Event weekend starts 2026-10-03 (legacy event-level date).

Location

DNB Oslo Marathon 10K
Oslo, Norway
Trondheim Skogsmaraton 10K
Trondheim, Norway

Actual distance

DNB Oslo Marathon 10K
10 km
Trondheim Skogsmaraton 10K
10.5 km

raceindex.org mapped route held

DNB Oslo Marathon 10K
Held
Trondheim Skogsmaraton 10K
Held

raceindex.org elevation profile held

DNB Oslo Marathon 10K
Held
Trondheim Skogsmaraton 10K
Held

Surface

DNB Oslo Marathon 10K
Unavailable
Trondheim Skogsmaraton 10K
Mixed gravel, asphalt and terrain through forest, including a steep climb nicknamed "monsterbakken" up to Lian

Elevation character

DNB Oslo Marathon 10K
Unavailable
Trondheim Skogsmaraton 10K
Hilly

Terrain

DNB Oslo Marathon 10K
Road
Trondheim Skogsmaraton 10K
Trail

Scenery

DNB Oslo Marathon 10K
City, Waterfront, Coastal, Historic, Parkland
Trondheim Skogsmaraton 10K
Countryside, Forest, City, Lakeside

Atmosphere

DNB Oslo Marathon 10K
Big City, Festival, Scenic Tour
Trondheim Skogsmaraton 10K
Community, Scenic Tour

Total ascent

DNB Oslo Marathon 10K
128 m
Trondheim Skogsmaraton 10K
232 m

Climbing density

DNB Oslo Marathon 10K
12.8 m/km
Trondheim Skogsmaraton 10K
22.1 m/km

Total descent

DNB Oslo Marathon 10K
130 m
Trondheim Skogsmaraton 10K
232 m

Net elevation

DNB Oslo Marathon 10K
-2 m
Trondheim Skogsmaraton 10K
-0 m

Max absolute grade

DNB Oslo Marathon 10K
13.3%
Trondheim Skogsmaraton 10K
19.4%

Flat grade share

DNB Oslo Marathon 10K
49.8%
Trondheim Skogsmaraton 10K
32.0%

GAP factor

DNB Oslo Marathon 10K
1.4%
Trondheim Skogsmaraton 10K
4.2%

Cutoff

DNB Oslo Marathon 10K
1:45:00
Trondheim Skogsmaraton 10K
Unavailable

Entry model

DNB Oslo Marathon 10K
Open
Trondheim Skogsmaraton 10K
Open

Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.

Common questions

Which is flatter, DNB Oslo Marathon 10K or Trondheim Skogsmaraton 10K?

DNB Oslo Marathon 10K has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.

Read the full pages

How figures are calculated →