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

Trondheim Maraton 10K has the stronger available profile on flat grade share, course flatness and conditions.

Route comparison snapshot

DNB Oslo Marathon 10K

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

Trondheim Maraton 10K

Mapped route
Held
Elevation profile
Held
course flatness
0.4% Favoured
flat grade share
83.4% Favoured
lower ascent
51 m
climbing density
5.1 m/km
net elevation
1 m
maximum grade
9.0%
Head-to-head comparison
MetricDNB Oslo Marathon 10KTrondheim Maraton 10K
Flat grade share49.8%83.4%
GAP factor (% slower than flat)1.4%0.4%
Uphill share25.8%8.1%
Steep-up share4.4%0.0%
Downhill share24.4%8.5%
Total ascent (m)128 m51 m
Climbing density (m/km)12.8 m/km5.1 m/km
Longest climb length (m)890 m460 m
Longest climb gain (m)18 m11 m
Longest climb average grade2.0%2.4%
Total descent (m)130 m51 m
Net elevation (m)-2 m1 m
Max absolute grade13.3%9.0%
Start elevation (m)12 m10 m
Finish elevation (m)10 m11 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 Maraton 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 2026-09-06 (legacy event-level date).

LocationOslo, NorwayTrondheim, Norway
Actual distance10 km10 km
raceindex.org mapped route heldHeldHeld
raceindex.org elevation profile heldHeldHeld
Course typeUnavailableLoop
TerrainRoadUnavailable
SceneryCity, Waterfront, Coastal, Historic, ParklandCity, Waterfront, Riverside, Historic
AtmosphereBig City, Festival, Scenic TourBig City, Scenic Tour
Total ascent128 m51 m
Climbing density12.8 m/km5.1 m/km
Total descent130 m51 m
Net elevation-2 m1 m
Max absolute grade13.3%9.0%
Flat grade share49.8%83.4%
GAP factor1.4%0.4%
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 Maraton 10K

Exact race date not confirmed. Event weekend starts 2026-09-06 (legacy event-level date).

Location

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

Actual distance

DNB Oslo Marathon 10K
10 km
Trondheim Maraton 10K
10 km

raceindex.org mapped route held

DNB Oslo Marathon 10K
Held
Trondheim Maraton 10K
Held

raceindex.org elevation profile held

DNB Oslo Marathon 10K
Held
Trondheim Maraton 10K
Held

Course type

DNB Oslo Marathon 10K
Unavailable
Trondheim Maraton 10K
Loop

Terrain

DNB Oslo Marathon 10K
Road
Trondheim Maraton 10K
Unavailable

Scenery

DNB Oslo Marathon 10K
City, Waterfront, Coastal, Historic, Parkland
Trondheim Maraton 10K
City, Waterfront, Riverside, Historic

Atmosphere

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

Total ascent

DNB Oslo Marathon 10K
128 m
Trondheim Maraton 10K
51 m

Climbing density

DNB Oslo Marathon 10K
12.8 m/km
Trondheim Maraton 10K
5.1 m/km

Total descent

DNB Oslo Marathon 10K
130 m
Trondheim Maraton 10K
51 m

Net elevation

DNB Oslo Marathon 10K
-2 m
Trondheim Maraton 10K
1 m

Max absolute grade

DNB Oslo Marathon 10K
13.3%
Trondheim Maraton 10K
9.0%

Flat grade share

DNB Oslo Marathon 10K
49.8%
Trondheim Maraton 10K
83.4%

GAP factor

DNB Oslo Marathon 10K
1.4%
Trondheim Maraton 10K
0.4%

Cutoff

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

Entry model

DNB Oslo Marathon 10K
Open
Trondheim Maraton 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 Maraton 10K?

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

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How figures are calculated →