Flat grade share
- Idaho Falls Marathon Half Marathon
- 96.0% Favoured
Spring Dash (Coeur d'Alene) Half Marathon vs Idaho Falls Marathon Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofSpring Dash (Coeur d'Alene) Half Marathon or Idaho Falls Marathon Half Marathon — which comes out ahead?
Spring Dash (Coeur d'Alene) Half Marathon and Idaho Falls Marathon Half Marathon split the available advantages, so the better choice depends on which metric matters most to the runner.
Route comparison snapshot
Spring Dash (Coeur d'Alene) Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 2.9%
- flat grade share
- 40.7%
- lower ascent
- 368 m
- climbing density
- 17.4 m/km
- net elevation
- 0 m
- maximum grade
- 16.9%
Idaho Falls Marathon Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.1% Favoured
- flat grade share
- 96.0% Favoured
- lower ascent
- 50 m
- climbing density
- 2.4 m/km
- net elevation
- -3 m
- maximum grade
- 9.1%
| Metric | Spring Dash (Coeur d'Alene) Half Marathon | Idaho Falls Marathon Half Marathon |
|---|---|---|
| Flat grade share | 40.7% | 96.0% ✓ |
| GAP factor (% slower than flat) | 2.9% | 0.1% ✓ |
| Uphill share | 29.6% | 2.1% |
| Steep-up share | 9.0% | 0.1% |
| Downhill share | 29.7% | 1.9% |
| Total ascent (m) | 368 m | 50 m |
| Climbing density (m/km) | 17.4 m/km | 2.4 m/km |
| Longest climb length (m) | 810 m | 1,490 m |
| Longest climb gain (m) | 55 m | 11 m |
| Longest climb average grade | 6.7% | 0.7% |
| Total descent (m) | 367 m | 52 m |
| Net elevation (m) | 0 m | -3 m |
| Max absolute grade | 16.9% | 9.1% |
| Start elevation (m) | 660 m | 1,431 m |
| Finish elevation (m) | 660 m | 1,428 m |
| Scenic score | 81/100 ✓ | 76/100 |
| Conditions | 96/100 ✓ | 43/100 |
GAP factor (% slower than flat)
- Idaho Falls Marathon Half Marathon
- 0.1% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (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
- Spring Dash (Coeur d'Alene) Half Marathon
- 81/100 Favoured
Conditions
- Spring Dash (Coeur d'Alene) Half Marathon
- 96/100 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 | Spring Dash (Coeur d'Alene) Half Marathon | Idaho Falls Marathon Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-04-25 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-07-25 (legacy event-level date). |
| Location | Coeur d'Alene, Idaho | Idaho Falls, Idaho |
| Actual distance | 21.1 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Out And Back | Loop |
| Surface | Paved | Unavailable |
| Elevation character | Flat | Flat |
| Terrain | Unavailable | Road |
| Scenery | City, Coastal, Waterfront, Parkland, Lakeside | Waterfront, Countryside, Riverside, City, Historic, Parkland |
| Atmosphere | Unavailable | Community, Charity |
| Technicality | Non Technical | Unavailable |
| Total ascent | 368 m | 50 m |
| Climbing density | 17.4 m/km | 2.4 m/km |
| Total descent | 367 m | 52 m |
| Net elevation | 0 m | -3 m |
| Max absolute grade | 16.9% | 9.1% |
| Flat grade share | 40.7% | 96.0% |
| GAP factor | 2.9% | 0.1% |
| Cutoff | Unavailable | 5:00:00 |
| Entry model | Open | Open |
Schedule
- Spring Dash (Coeur d'Alene) Half Marathon
Exact race date not confirmed. Event weekend starts 2026-04-25 (legacy event-level date).
- Idaho Falls Marathon Half Marathon
Exact race date not confirmed. Event weekend starts 2026-07-25 (legacy event-level date).
Location
- Spring Dash (Coeur d'Alene) Half Marathon
- Coeur d'Alene, Idaho
- Idaho Falls Marathon Half Marathon
- Idaho Falls, Idaho
Actual distance
- Spring Dash (Coeur d'Alene) Half Marathon
- 21.1 km
- Idaho Falls Marathon Half Marathon
- 21.1 km
raceindex.org mapped route held
- Spring Dash (Coeur d'Alene) Half Marathon
- Held
- Idaho Falls Marathon Half Marathon
- Held
raceindex.org elevation profile held
- Spring Dash (Coeur d'Alene) Half Marathon
- Held
- Idaho Falls Marathon Half Marathon
- Held
Course type
- Spring Dash (Coeur d'Alene) Half Marathon
- Out And Back
- Idaho Falls Marathon Half Marathon
- Loop
Surface
- Spring Dash (Coeur d'Alene) Half Marathon
- Paved
- Idaho Falls Marathon Half Marathon
- Unavailable
Elevation character
- Spring Dash (Coeur d'Alene) Half Marathon
- Flat
- Idaho Falls Marathon Half Marathon
- Flat
Terrain
- Spring Dash (Coeur d'Alene) Half Marathon
- Unavailable
- Idaho Falls Marathon Half Marathon
- Road
Scenery
- Spring Dash (Coeur d'Alene) Half Marathon
- City, Coastal, Waterfront, Parkland, Lakeside
- Idaho Falls Marathon Half Marathon
- Waterfront, Countryside, Riverside, City, Historic, Parkland
Atmosphere
- Spring Dash (Coeur d'Alene) Half Marathon
- Unavailable
- Idaho Falls Marathon Half Marathon
- Community, Charity
Technicality
- Spring Dash (Coeur d'Alene) Half Marathon
- Non Technical
- Idaho Falls Marathon Half Marathon
- Unavailable
Total ascent
- Spring Dash (Coeur d'Alene) Half Marathon
- 368 m
- Idaho Falls Marathon Half Marathon
- 50 m
Climbing density
- Spring Dash (Coeur d'Alene) Half Marathon
- 17.4 m/km
- Idaho Falls Marathon Half Marathon
- 2.4 m/km
Total descent
- Spring Dash (Coeur d'Alene) Half Marathon
- 367 m
- Idaho Falls Marathon Half Marathon
- 52 m
Net elevation
- Spring Dash (Coeur d'Alene) Half Marathon
- 0 m
- Idaho Falls Marathon Half Marathon
- -3 m
Max absolute grade
- Spring Dash (Coeur d'Alene) Half Marathon
- 16.9%
- Idaho Falls Marathon Half Marathon
- 9.1%
Flat grade share
- Spring Dash (Coeur d'Alene) Half Marathon
- 40.7%
- Idaho Falls Marathon Half Marathon
- 96.0%
GAP factor
- Spring Dash (Coeur d'Alene) Half Marathon
- 2.9%
- Idaho Falls Marathon Half Marathon
- 0.1%
Cutoff
- Spring Dash (Coeur d'Alene) Half Marathon
- Unavailable
- Idaho Falls Marathon Half Marathon
- 5:00:00
Entry model
- Spring Dash (Coeur d'Alene) Half Marathon
- Open
- Idaho Falls Marathon 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, Spring Dash (Coeur d'Alene) Half Marathon or Idaho Falls Marathon Half Marathon?
Idaho Falls Marathon Half Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.