Flat grade share
- Trondheim Maraton Half Marathon
- 78.7% Favoured
DNB Oslo Marathon Half Marathon vs Trondheim Maraton Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofDNB Oslo Marathon Half Marathon or Trondheim Maraton Half Marathon — which comes out ahead?
Trondheim Maraton Half Marathon has the stronger available profile on flat grade share, course flatness and conditions.
Route comparison snapshot
DNB Oslo Marathon Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.5%
- flat grade share
- 72.1%
- lower ascent
- 153 m
- climbing density
- 7.2 m/km
- net elevation
- -0 m
- maximum grade
- 6.5%
Trondheim Maraton Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.4% Favoured
- flat grade share
- 78.7% Favoured
- lower ascent
- 127 m
- climbing density
- 6.0 m/km
- net elevation
- 1 m
- maximum grade
- 8.3%
| Metric | DNB Oslo Marathon Half Marathon | Trondheim Maraton Half Marathon |
|---|---|---|
| Flat grade share | 72.1% | 78.7% ✓ |
| GAP factor (% slower than flat) | 0.5% | 0.4% ✓ |
| Uphill share | 12.2% | 11.3% |
| Steep-up share | 0.4% | 0.4% |
| Downhill share | 15.7% | 10.0% |
| Total ascent (m) | 153 m | 127 m |
| Climbing density (m/km) | 7.2 m/km | 6.0 m/km |
| Longest climb length (m) | 1,050 m | 1,570 m |
| Longest climb gain (m) | 29 m | 26 m |
| Longest climb average grade | 2.8% | 1.7% |
| Total descent (m) | 153 m | 125 m |
| Net elevation (m) | -0 m | 1 m |
| Max absolute grade | 6.5% | 8.3% |
| Start elevation (m) | 3 m | 10 m |
| Finish elevation (m) | 3 m | 11 m |
| Scenic score | 68/100 ✓ | 60/100 |
| Conditions | 84/100 | 85/100 ✓ |
GAP factor (% slower than flat)
- Trondheim Maraton Half Marathon
- 0.4% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- DNB Oslo Marathon Half Marathon
- 7.2 m/km
- Trondheim Maraton Half Marathon
- 6.0 m/km
Longest climb length (m)
Longest climb gain (m)
Longest climb average grade
Total descent (m)
Net elevation (m)
Max absolute grade
Start elevation (m)
Finish elevation (m)
Scenic score
- DNB Oslo Marathon Half Marathon
- 68/100 Favoured
Conditions
- Trondheim Maraton Half Marathon
- 85/100 Favoured
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
| Fact | DNB Oslo Marathon Half Marathon | Trondheim Maraton Half Marathon |
|---|---|---|
| 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). |
| Location | Oslo, Norway | Trondheim, Norway |
| Actual distance | 21.1 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Unavailable | Loop |
| Terrain | Road | Unavailable |
| Scenery | City, Waterfront, Coastal, Historic, Parkland | City, Waterfront, Riverside, Historic |
| Atmosphere | Big City, Festival, Scenic Tour | Big City, Scenic Tour |
| Total ascent | 153 m | 127 m |
| Climbing density | 7.2 m/km | 6.0 m/km |
| Total descent | 153 m | 125 m |
| Net elevation | -0 m | 1 m |
| Max absolute grade | 6.5% | 8.3% |
| Flat grade share | 72.1% | 78.7% |
| GAP factor | 0.5% | 0.4% |
| Cutoff | 3:30:00 | Unavailable |
| Entry model | Open | Open |
Schedule
- DNB Oslo Marathon Half Marathon
Exact race date not confirmed. Event weekend starts 2026-09-12 (legacy event-level date).
- Trondheim Maraton Half Marathon
Exact race date not confirmed. Event weekend starts 2026-09-06 (legacy event-level date).
Location
- DNB Oslo Marathon Half Marathon
- Oslo, Norway
- Trondheim Maraton Half Marathon
- Trondheim, Norway
Actual distance
- DNB Oslo Marathon Half Marathon
- 21.1 km
- Trondheim Maraton Half Marathon
- 21.1 km
raceindex.org mapped route held
- DNB Oslo Marathon Half Marathon
- Held
- Trondheim Maraton Half Marathon
- Held
raceindex.org elevation profile held
- DNB Oslo Marathon Half Marathon
- Held
- Trondheim Maraton Half Marathon
- Held
Course type
- DNB Oslo Marathon Half Marathon
- Unavailable
- Trondheim Maraton Half Marathon
- Loop
Terrain
- DNB Oslo Marathon Half Marathon
- Road
- Trondheim Maraton Half Marathon
- Unavailable
Scenery
- DNB Oslo Marathon Half Marathon
- City, Waterfront, Coastal, Historic, Parkland
- Trondheim Maraton Half Marathon
- City, Waterfront, Riverside, Historic
Atmosphere
- DNB Oslo Marathon Half Marathon
- Big City, Festival, Scenic Tour
- Trondheim Maraton Half Marathon
- Big City, Scenic Tour
Total ascent
- DNB Oslo Marathon Half Marathon
- 153 m
- Trondheim Maraton Half Marathon
- 127 m
Climbing density
- DNB Oslo Marathon Half Marathon
- 7.2 m/km
- Trondheim Maraton Half Marathon
- 6.0 m/km
Total descent
- DNB Oslo Marathon Half Marathon
- 153 m
- Trondheim Maraton Half Marathon
- 125 m
Net elevation
- DNB Oslo Marathon Half Marathon
- -0 m
- Trondheim Maraton Half Marathon
- 1 m
Max absolute grade
- DNB Oslo Marathon Half Marathon
- 6.5%
- Trondheim Maraton Half Marathon
- 8.3%
Flat grade share
- DNB Oslo Marathon Half Marathon
- 72.1%
- Trondheim Maraton Half Marathon
- 78.7%
GAP factor
- DNB Oslo Marathon Half Marathon
- 0.5%
- Trondheim Maraton Half Marathon
- 0.4%
Cutoff
- DNB Oslo Marathon Half Marathon
- 3:30:00
- Trondheim Maraton Half Marathon
- Unavailable
Entry model
- DNB Oslo Marathon Half Marathon
- Open
- Trondheim Maraton Half Marathon
- 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 Half Marathon or Trondheim Maraton Half Marathon?
Trondheim Maraton Half Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.