Flat grade share
- Portland Coastal Marathon
- 53.2% Favoured
Portland Coastal Marathon vs Balaton Szupermaraton (Siófok) Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofPortland Coastal Marathon or Balaton Szupermaraton (Siófok) Marathon — which comes out ahead?
Balaton Szupermaraton (Siófok) Marathon has the stronger available profile on course flatness, scenery score and conditions.
Route comparison snapshot
Portland Coastal Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 4.0%
- flat grade share
- 53.2% Favoured
- lower ascent
- 715 m
- climbing density
- 16.9 m/km
- net elevation
- -0 m
- maximum grade
- 33.0%
Balaton Szupermaraton (Siófok) Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 3.2% Favoured
- flat grade share
- 37.8%
- lower ascent
- 803 m
- climbing density
- 19.0 m/km
- net elevation
- -20 m
- maximum grade
- 24.3%
| Metric | Portland Coastal Marathon | Balaton Szupermaraton (Siófok) Marathon |
|---|---|---|
| Flat grade share | 53.2% ✓ | 37.8% |
| GAP factor (% slower than flat) | 4.0% | 3.2% ✓ |
| Uphill share | 23.4% | 29.9% |
| Steep-up share | 8.6% | 10.6% |
| Downhill share | 23.5% | 32.3% |
| Total ascent (m) | 715 m | 803 m |
| Climbing density (m/km) | 16.9 m/km | 19.0 m/km |
| Longest climb length (m) | 680 m | 800 m |
| Longest climb gain (m) | 99 m | 55 m |
| Longest climb average grade | 14.6% | 6.9% |
| Total descent (m) | 715 m | 823 m |
| Net elevation (m) | -0 m | -20 m |
| Max absolute grade | 33.0% | 24.3% |
| Start elevation (m) | -0 m | 117 m |
| Finish elevation (m) | -0 m | 97 m |
| Scenic score | 87/100 | 100/100 ✓ |
| Conditions | 78/100 | 83/100 ✓ |
GAP factor (% slower than flat)
- Balaton Szupermaraton (Siófok) Marathon
- 3.2% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Portland Coastal Marathon
- 16.9 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
- Balaton Szupermaraton (Siófok) Marathon
- 100/100 Favoured
Conditions
- Balaton Szupermaraton (Siófok) Marathon
- 83/100 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 | Portland Coastal Marathon | Balaton Szupermaraton (Siófok) Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2027-02-14 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-02-26 (legacy event-level date). |
| Location | Portland, South West | Siófok, Hungary |
| Actual distance | 42.2 km | 42.2 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Laps | Unavailable |
| Surface | Coastal trail on the South West Coast Path (exposed limestone peninsula terrain). | Paved Balaton cycle path and low Traffic settlement roads around the lake |
| Elevation character | Hilly | Unavailable |
| Terrain | Trail | Trail |
| Scenery | Island, Coastal, Waterfront, City, Historic | Coastal, Lakeside, Waterfront, Countryside, City, Vineyard |
| Atmosphere | Scenic Tour, Wilderness | Destination, Scenic Tour, Community |
| Technicality | Moderate | Unavailable |
| Total ascent | 715 m | 803 m |
| Climbing density | 16.9 m/km | 19.0 m/km |
| Total descent | 715 m | 823 m |
| Net elevation | -0 m | -20 m |
| Max absolute grade | 33.0% | 24.3% |
| Flat grade share | 53.2% | 37.8% |
| GAP factor | 4.0% | 3.2% |
| Cutoff | Unavailable | 5:53:00 |
| Entry model | Open | Open |
| Measured course | No | Unavailable |
Schedule
- Portland Coastal Marathon
Exact race date not confirmed. Event weekend starts 2027-02-14 (legacy event-level date).
- Balaton Szupermaraton (Siófok) Marathon
Exact race date not confirmed. Event weekend starts 2026-02-26 (legacy event-level date).
Location
- Portland Coastal Marathon
- Portland, South West
- Balaton Szupermaraton (Siófok) Marathon
- Siófok, Hungary
Actual distance
- Portland Coastal Marathon
- 42.2 km
- Balaton Szupermaraton (Siófok) Marathon
- 42.2 km
raceindex.org mapped route held
- Portland Coastal Marathon
- Held
- Balaton Szupermaraton (Siófok) Marathon
- Held
raceindex.org elevation profile held
- Portland Coastal Marathon
- Held
- Balaton Szupermaraton (Siófok) Marathon
- Held
Course type
- Portland Coastal Marathon
- Laps
- Balaton Szupermaraton (Siófok) Marathon
- Unavailable
Surface
- Portland Coastal Marathon
- Coastal trail on the South West Coast Path (exposed limestone peninsula terrain).
- Balaton Szupermaraton (Siófok) Marathon
- Paved Balaton cycle path and low Traffic settlement roads around the lake
Elevation character
- Portland Coastal Marathon
- Hilly
- Balaton Szupermaraton (Siófok) Marathon
- Unavailable
Terrain
- Portland Coastal Marathon
- Trail
- Balaton Szupermaraton (Siófok) Marathon
- Trail
Scenery
- Portland Coastal Marathon
- Island, Coastal, Waterfront, City, Historic
- Balaton Szupermaraton (Siófok) Marathon
- Coastal, Lakeside, Waterfront, Countryside, City, Vineyard
Atmosphere
- Portland Coastal Marathon
- Scenic Tour, Wilderness
- Balaton Szupermaraton (Siófok) Marathon
- Destination, Scenic Tour, Community
Technicality
- Portland Coastal Marathon
- Moderate
- Balaton Szupermaraton (Siófok) Marathon
- Unavailable
Total ascent
- Portland Coastal Marathon
- 715 m
- Balaton Szupermaraton (Siófok) Marathon
- 803 m
Climbing density
- Portland Coastal Marathon
- 16.9 m/km
- Balaton Szupermaraton (Siófok) Marathon
- 19.0 m/km
Total descent
- Portland Coastal Marathon
- 715 m
- Balaton Szupermaraton (Siófok) Marathon
- 823 m
Net elevation
- Portland Coastal Marathon
- -0 m
- Balaton Szupermaraton (Siófok) Marathon
- -20 m
Max absolute grade
- Portland Coastal Marathon
- 33.0%
- Balaton Szupermaraton (Siófok) Marathon
- 24.3%
Flat grade share
- Portland Coastal Marathon
- 53.2%
- Balaton Szupermaraton (Siófok) Marathon
- 37.8%
GAP factor
- Portland Coastal Marathon
- 4.0%
- Balaton Szupermaraton (Siófok) Marathon
- 3.2%
Cutoff
- Portland Coastal Marathon
- Unavailable
- Balaton Szupermaraton (Siófok) Marathon
- 5:53:00
Entry model
- Portland Coastal Marathon
- Open
- Balaton Szupermaraton (Siófok) Marathon
- Open
Measured course
- Portland Coastal Marathon
- No
- Balaton Szupermaraton (Siófok) 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, Portland Coastal Marathon or Balaton Szupermaraton (Siófok) Marathon?
Balaton Szupermaraton (Siófok) Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.