Flat grade share
- MountainOne Steel Rail Races (Adams) Marathon
- 93.7% Favoured
- Stockholm Marathon
- 91.9%
MountainOne Steel Rail Races (Adams) Marathon vs Stockholm Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofMountainOne Steel Rail Races (Adams) Marathon or Stockholm Marathon — which comes out ahead?
MountainOne Steel Rail Races (Adams) Marathon has the stronger available profile on flat grade share, course flatness and scenery score.
Route comparison snapshot
MountainOne Steel Rail Races (Adams) Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.2% Favoured
- flat grade share
- 93.7% Favoured
- lower ascent
- 128 m
- climbing density
- 3.0 m/km
- net elevation
- -0 m
- maximum grade
- 6.8%
Stockholm Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.2%
- flat grade share
- 91.9%
- lower ascent
- 166 m
- climbing density
- 3.9 m/km
- net elevation
- -0 m
- maximum grade
- 5.2%
| Metric | MountainOne Steel Rail Races (Adams) Marathon | Stockholm Marathon |
|---|---|---|
| Flat grade share | 93.7% ✓ | 91.9% |
| GAP factor (% slower than flat) | 0.2% ✓ | 0.2% |
| Uphill share | 3.0% | 3.7% |
| Steep-up share | 0.1% | 0.0% |
| Downhill share | 3.3% | 4.4% |
| Total ascent (m) | 128 m | 166 m |
| Climbing density (m/km) | 3.0 m/km | 3.9 m/km |
| Longest climb length (m) | 640 m | 1,270 m |
| Longest climb gain (m) | 14 m | 23 m |
| Longest climb average grade | 2.1% | 1.8% |
| Total descent (m) | 128 m | 166 m |
| Net elevation (m) | -0 m | -0 m |
| Max absolute grade | 6.8% | 5.2% |
| Start elevation (m) | 243 m | 21 m |
| Finish elevation (m) | 242 m | 21 m |
| Scenic score | 100/100 ✓ | 88/100 |
| Conditions | 44/100 | 87/100 ✓ |
GAP factor (% slower than flat)
- MountainOne Steel Rail Races (Adams) Marathon
- 0.2% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
- Stockholm Marathon
- 166 m
Climbing density (m/km)
- Stockholm Marathon
- 3.9 m/km
Longest climb length (m)
- Stockholm Marathon
- 1,270 m
Longest climb gain (m)
Longest climb average grade
Total descent (m)
- Stockholm Marathon
- 166 m
Net elevation (m)
Max absolute grade
Start elevation (m)
Finish elevation (m)
Scenic score
- MountainOne Steel Rail Races (Adams) Marathon
- 100/100 Favoured
- Stockholm Marathon
- 88/100
Conditions
- Stockholm Marathon
- 87/100 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 | MountainOne Steel Rail Races (Adams) Marathon | Stockholm Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-05-17 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2027-05-29 (legacy event-level date). |
| Location | Adams, Massachusetts | Stockholm, Sweden |
| Actual distance | 42.2 km | 42.2 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Out And Back | Laps |
| Surface | Paved rail trail (10 Foot Wide paved former railroad bed) | Asphalt |
| Laps | Unavailable | 2 |
| Elevation character | Flat | Rolling |
| Terrain | Towpath, Trail | Road |
| Scenery | Countryside, Waterfront, Lakeside, Riverside, Mountain, Forest | City, Historic, Waterfront, Lakeside, Island, Parkland |
| Atmosphere | Community, Competitive, Destination | Big City, Scenic Tour, Destination |
| Technicality | Non Technical | Moderate |
| Total ascent | 128 m | 166 m |
| Climbing density | 3.0 m/km | 3.9 m/km |
| Total descent | 128 m | 166 m |
| Net elevation | -0 m | -0 m |
| Max absolute grade | 6.8% | 5.2% |
| Flat grade share | 93.7% | 91.9% |
| GAP factor | 0.2% | 0.2% |
| Cutoff | Unavailable | 6:30:00 |
| Entry model | Open | Open |
| Qualifying status | Boston_equivalent | Unavailable |
Schedule
- MountainOne Steel Rail Races (Adams) Marathon
Exact race date not confirmed. Event weekend starts 2026-05-17 (legacy event-level date).
- Stockholm Marathon
Exact race date not confirmed. Event weekend starts 2027-05-29 (legacy event-level date).
Location
- MountainOne Steel Rail Races (Adams) Marathon
- Adams, Massachusetts
- Stockholm Marathon
- Stockholm, Sweden
Actual distance
- MountainOne Steel Rail Races (Adams) Marathon
- 42.2 km
- Stockholm Marathon
- 42.2 km
raceindex.org mapped route held
- MountainOne Steel Rail Races (Adams) Marathon
- Held
- Stockholm Marathon
- Held
raceindex.org elevation profile held
- MountainOne Steel Rail Races (Adams) Marathon
- Held
- Stockholm Marathon
- Held
Course type
- MountainOne Steel Rail Races (Adams) Marathon
- Out And Back
- Stockholm Marathon
- Laps
Surface
- MountainOne Steel Rail Races (Adams) Marathon
- Paved rail trail (10 Foot Wide paved former railroad bed)
- Stockholm Marathon
- Asphalt
Laps
- MountainOne Steel Rail Races (Adams) Marathon
- Unavailable
- Stockholm Marathon
- 2
Elevation character
- MountainOne Steel Rail Races (Adams) Marathon
- Flat
- Stockholm Marathon
- Rolling
Terrain
- MountainOne Steel Rail Races (Adams) Marathon
- Towpath, Trail
- Stockholm Marathon
- Road
Scenery
- MountainOne Steel Rail Races (Adams) Marathon
- Countryside, Waterfront, Lakeside, Riverside, Mountain, Forest
- Stockholm Marathon
- City, Historic, Waterfront, Lakeside, Island, Parkland
Atmosphere
- MountainOne Steel Rail Races (Adams) Marathon
- Community, Competitive, Destination
- Stockholm Marathon
- Big City, Scenic Tour, Destination
Technicality
- MountainOne Steel Rail Races (Adams) Marathon
- Non Technical
- Stockholm Marathon
- Moderate
Total ascent
- MountainOne Steel Rail Races (Adams) Marathon
- 128 m
- Stockholm Marathon
- 166 m
Climbing density
- MountainOne Steel Rail Races (Adams) Marathon
- 3.0 m/km
- Stockholm Marathon
- 3.9 m/km
Total descent
- MountainOne Steel Rail Races (Adams) Marathon
- 128 m
- Stockholm Marathon
- 166 m
Net elevation
- MountainOne Steel Rail Races (Adams) Marathon
- -0 m
- Stockholm Marathon
- -0 m
Max absolute grade
- MountainOne Steel Rail Races (Adams) Marathon
- 6.8%
- Stockholm Marathon
- 5.2%
Flat grade share
- MountainOne Steel Rail Races (Adams) Marathon
- 93.7%
- Stockholm Marathon
- 91.9%
GAP factor
- MountainOne Steel Rail Races (Adams) Marathon
- 0.2%
- Stockholm Marathon
- 0.2%
Cutoff
- MountainOne Steel Rail Races (Adams) Marathon
- Unavailable
- Stockholm Marathon
- 6:30:00
Entry model
- MountainOne Steel Rail Races (Adams) Marathon
- Open
- Stockholm Marathon
- Open
Qualifying status
- MountainOne Steel Rail Races (Adams) Marathon
- Boston_equivalent
- Stockholm Marathon
- Unavailable
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, MountainOne Steel Rail Races (Adams) Marathon or Stockholm Marathon?
MountainOne Steel Rail Races (Adams) Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.