Flat grade share
- Idaho Falls Marathon
- 96.4% Favoured
Sunrise Marathon | Halfmarathon Brno vs Idaho Falls Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofSunrise Marathon | Halfmarathon Brno or Idaho Falls Marathon — which comes out ahead?
Sunrise Marathon | Halfmarathon Brno and Idaho Falls Marathon split the available advantages, so the better choice depends on which metric matters most to the runner.
Route comparison snapshot
Sunrise Marathon | Halfmarathon Brno
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.2% Favoured
- flat grade share
- 88.9%
- lower ascent
- 176 m
- climbing density
- 4.2 m/km
- net elevation
- -0 m
- maximum grade
- 6.4%
Idaho Falls Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.3%
- flat grade share
- 96.4% Favoured
- lower ascent
- 69 m
- climbing density
- 1.6 m/km
- net elevation
- 15 m
- maximum grade
- 10.9%
| Metric | Sunrise Marathon | Halfmarathon Brno | Idaho Falls Marathon |
|---|---|---|
| Flat grade share | 88.9% | 96.4% ✓ |
| GAP factor (% slower than flat) | 0.2% ✓ | 0.3% |
| Uphill share | 5.9% | 1.8% |
| Steep-up share | 0.4% | 0.1% |
| Downhill share | 5.2% | 1.8% |
| Total ascent (m) | 176 m | 69 m |
| Climbing density (m/km) | 4.2 m/km | 1.6 m/km |
| Longest climb length (m) | 280 m | 530 m |
| Longest climb gain (m) | 7 m | 9 m |
| Longest climb average grade | 2.3% | 1.7% |
| Total descent (m) | 176 m | 52 m |
| Net elevation (m) | -0 m | 15 m |
| Max absolute grade | 6.4% | 10.9% |
| Start elevation (m) | 189 m | 1,416 m |
| Finish elevation (m) | 189 m | 1,431 m |
| Scenic score | 78/100 | 83/100 ✓ |
| Conditions | 54/100 ✓ | 43/100 |
GAP factor (% slower than flat)
- Sunrise Marathon | Halfmarathon Brno
- 0.2% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Idaho Falls Marathon
- 1.6 m/km
Longest climb length (m)
- Idaho Falls Marathon
- 530 m
Longest climb gain (m)
Longest climb average grade
Total descent (m)
Net elevation (m)
Max absolute grade
- Idaho Falls Marathon
- 10.9%
Start elevation (m)
- Idaho Falls Marathon
- 1,416 m
Finish elevation (m)
- Idaho Falls Marathon
- 1,431 m
Scenic score
- Idaho Falls Marathon
- 83/100 Favoured
Conditions
- Sunrise Marathon | Halfmarathon Brno
- 54/100 Favoured
- Idaho Falls Marathon
- 43/100
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
| Fact | Sunrise Marathon | Halfmarathon Brno | Idaho Falls Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-06-21 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-07-25 (legacy event-level date). |
| Location | Modřice (Brno), Czechia | Idaho Falls, Idaho |
| 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 | Loop |
| Surface | 95% firm/hardened surface — asphalt plus compacted gravel (mlat) and clay Based paths. | Unavailable |
| Elevation character | Pancake Flat | Gently Rolling |
| Terrain | Road, Mixed, Trail | Road |
| Scenery | Riverside, Parkland, City, Countryside, Lakeside | Riverside, Waterfront, Countryside, City, Historic, Parkland |
| Atmosphere | Nighttime, Scenic Tour | Community, Charity |
| Technicality | Non Technical | Non Technical |
| Total ascent | 176 m | 69 m |
| Climbing density | 4.2 m/km | 1.6 m/km |
| Total descent | 176 m | 52 m |
| Net elevation | -0 m | 15 m |
| Max absolute grade | 6.4% | 10.9% |
| Flat grade share | 88.9% | 96.4% |
| GAP factor | 0.2% | 0.3% |
| Cutoff | 6:00:00 | 6:00:00 |
| Entry model | Open | Open |
| Qualifying status | Unavailable | Boston_equivalent |
Schedule
- Sunrise Marathon | Halfmarathon Brno
Exact race date not confirmed. Event weekend starts 2026-06-21 (legacy event-level date).
- Idaho Falls Marathon
Exact race date not confirmed. Event weekend starts 2026-07-25 (legacy event-level date).
Location
- Sunrise Marathon | Halfmarathon Brno
- Modřice (Brno), Czechia
- Idaho Falls Marathon
- Idaho Falls, Idaho
Actual distance
- Sunrise Marathon | Halfmarathon Brno
- 42.2 km
- Idaho Falls Marathon
- 42.2 km
raceindex.org mapped route held
- Sunrise Marathon | Halfmarathon Brno
- Held
- Idaho Falls Marathon
- Held
raceindex.org elevation profile held
- Sunrise Marathon | Halfmarathon Brno
- Held
- Idaho Falls Marathon
- Held
Course type
- Sunrise Marathon | Halfmarathon Brno
- Laps
- Idaho Falls Marathon
- Loop
Surface
- Sunrise Marathon | Halfmarathon Brno
- 95% firm/hardened surface — asphalt plus compacted gravel (mlat) and clay Based paths.
- Idaho Falls Marathon
- Unavailable
Elevation character
- Sunrise Marathon | Halfmarathon Brno
- Pancake Flat
- Idaho Falls Marathon
- Gently Rolling
Terrain
- Sunrise Marathon | Halfmarathon Brno
- Road, Mixed, Trail
- Idaho Falls Marathon
- Road
Scenery
- Sunrise Marathon | Halfmarathon Brno
- Riverside, Parkland, City, Countryside, Lakeside
- Idaho Falls Marathon
- Riverside, Waterfront, Countryside, City, Historic, Parkland
Atmosphere
- Sunrise Marathon | Halfmarathon Brno
- Nighttime, Scenic Tour
- Idaho Falls Marathon
- Community, Charity
Technicality
- Sunrise Marathon | Halfmarathon Brno
- Non Technical
- Idaho Falls Marathon
- Non Technical
Total ascent
- Sunrise Marathon | Halfmarathon Brno
- 176 m
- Idaho Falls Marathon
- 69 m
Climbing density
- Sunrise Marathon | Halfmarathon Brno
- 4.2 m/km
- Idaho Falls Marathon
- 1.6 m/km
Total descent
- Sunrise Marathon | Halfmarathon Brno
- 176 m
- Idaho Falls Marathon
- 52 m
Net elevation
- Sunrise Marathon | Halfmarathon Brno
- -0 m
- Idaho Falls Marathon
- 15 m
Max absolute grade
- Sunrise Marathon | Halfmarathon Brno
- 6.4%
- Idaho Falls Marathon
- 10.9%
Flat grade share
- Sunrise Marathon | Halfmarathon Brno
- 88.9%
- Idaho Falls Marathon
- 96.4%
GAP factor
- Sunrise Marathon | Halfmarathon Brno
- 0.2%
- Idaho Falls Marathon
- 0.3%
Cutoff
- Sunrise Marathon | Halfmarathon Brno
- 6:00:00
- Idaho Falls Marathon
- 6:00:00
Entry model
- Sunrise Marathon | Halfmarathon Brno
- Open
- Idaho Falls Marathon
- Open
Qualifying status
- Sunrise Marathon | Halfmarathon Brno
- Unavailable
- Idaho Falls Marathon
- Boston_equivalent
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, Sunrise Marathon | Halfmarathon Brno or Idaho Falls Marathon?
Sunrise Marathon | Halfmarathon Brno has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.