Flat grade share
- Idaho Falls Marathon 5K
- 88.2% Favoured
Idaho Falls Marathon 5K vs Spring Dash (Coeur d'Alene) 5K
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofIdaho Falls Marathon 5K or Spring Dash (Coeur d'Alene) 5K — which comes out ahead?
Idaho Falls Marathon 5K and Spring Dash (Coeur d'Alene) 5K split the available advantages, so the better choice depends on which metric matters most to the runner.
Route comparison snapshot
Idaho Falls Marathon 5K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.3% Favoured
- flat grade share
- 88.2% Favoured
- lower ascent
- 19 m
- climbing density
- 3.8 m/km
- net elevation
- 0 m
- maximum grade
- 6.0%
Spring Dash (Coeur d'Alene) 5K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 4.1%
- flat grade share
- 27.9%
- lower ascent
- 106 m
- climbing density
- 21.3 m/km
- net elevation
- 4 m
- maximum grade
- 22.5%
| Metric | Idaho Falls Marathon 5K | Spring Dash (Coeur d'Alene) 5K |
|---|---|---|
| Flat grade share | 88.2% ✓ | 27.9% |
| GAP factor (% slower than flat) | 0.3% ✓ | 4.1% |
| Uphill share | 5.7% | 34.9% |
| Steep-up share | 0.0% | 10.2% |
| Downhill share | 6.1% | 37.3% |
| Total ascent (m) | 19 m | 106 m |
| Climbing density (m/km) | 3.8 m/km | 21.3 m/km |
| Longest climb length (m) | 340 m | 180 m |
| Longest climb gain (m) | 8 m | 24 m |
| Longest climb average grade | 2.3% | 13.5% |
| Total descent (m) | 19 m | 103 m |
| Net elevation (m) | 0 m | 4 m |
| Max absolute grade | 6.0% | 22.5% |
| Start elevation (m) | 1,431 m | 658 m |
| Finish elevation (m) | 1,431 m | 662 m |
| Scenic score | 70/100 | 81/100 ✓ |
| Conditions | 43/100 | 96/100 ✓ |
GAP factor (% slower than flat)
- Idaho Falls Marathon 5K
- 0.3% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Idaho Falls Marathon 5K
- 3.8 m/km
- Spring Dash (Coeur d'Alene) 5K
- 21.3 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)
- Idaho Falls Marathon 5K
- 1,431 m
Finish elevation (m)
- Idaho Falls Marathon 5K
- 1,431 m
Scenic score
- Idaho Falls Marathon 5K
- 70/100
- Spring Dash (Coeur d'Alene) 5K
- 81/100 Favoured
Conditions
- Idaho Falls Marathon 5K
- 43/100
- Spring Dash (Coeur d'Alene) 5K
- 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 | Idaho Falls Marathon 5K | Spring Dash (Coeur d'Alene) 5K |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-07-25 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-04-25 (legacy event-level date). |
| Location | Idaho Falls, Idaho | Coeur d'Alene, Idaho |
| Actual distance | 5 km | 5 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Unavailable | Out And Back |
| Surface | Unavailable | Paved |
| Terrain | Road | Unavailable |
| Scenery | Waterfront, Countryside, Riverside, City, Historic, Parkland | City, Coastal, Waterfront, Parkland, Lakeside |
| Atmosphere | Community, Charity | Unavailable |
| Total ascent | 19 m | 106 m |
| Climbing density | 3.8 m/km | 21.3 m/km |
| Total descent | 19 m | 103 m |
| Net elevation | 0 m | 4 m |
| Max absolute grade | 6.0% | 22.5% |
| Flat grade share | 88.2% | 27.9% |
| GAP factor | 0.3% | 4.1% |
| Cutoff | 2:00:00 | Unavailable |
| Entry model | Open | Open |
Schedule
- Idaho Falls Marathon 5K
Exact race date not confirmed. Event weekend starts 2026-07-25 (legacy event-level date).
- Spring Dash (Coeur d'Alene) 5K
Exact race date not confirmed. Event weekend starts 2026-04-25 (legacy event-level date).
Location
- Idaho Falls Marathon 5K
- Idaho Falls, Idaho
- Spring Dash (Coeur d'Alene) 5K
- Coeur d'Alene, Idaho
Actual distance
- Idaho Falls Marathon 5K
- 5 km
- Spring Dash (Coeur d'Alene) 5K
- 5 km
raceindex.org mapped route held
- Idaho Falls Marathon 5K
- Held
- Spring Dash (Coeur d'Alene) 5K
- Held
raceindex.org elevation profile held
- Idaho Falls Marathon 5K
- Held
- Spring Dash (Coeur d'Alene) 5K
- Held
Course type
- Idaho Falls Marathon 5K
- Unavailable
- Spring Dash (Coeur d'Alene) 5K
- Out And Back
Surface
- Idaho Falls Marathon 5K
- Unavailable
- Spring Dash (Coeur d'Alene) 5K
- Paved
Terrain
- Idaho Falls Marathon 5K
- Road
- Spring Dash (Coeur d'Alene) 5K
- Unavailable
Scenery
- Idaho Falls Marathon 5K
- Waterfront, Countryside, Riverside, City, Historic, Parkland
- Spring Dash (Coeur d'Alene) 5K
- City, Coastal, Waterfront, Parkland, Lakeside
Atmosphere
- Idaho Falls Marathon 5K
- Community, Charity
- Spring Dash (Coeur d'Alene) 5K
- Unavailable
Total ascent
- Idaho Falls Marathon 5K
- 19 m
- Spring Dash (Coeur d'Alene) 5K
- 106 m
Climbing density
- Idaho Falls Marathon 5K
- 3.8 m/km
- Spring Dash (Coeur d'Alene) 5K
- 21.3 m/km
Total descent
- Idaho Falls Marathon 5K
- 19 m
- Spring Dash (Coeur d'Alene) 5K
- 103 m
Net elevation
- Idaho Falls Marathon 5K
- 0 m
- Spring Dash (Coeur d'Alene) 5K
- 4 m
Max absolute grade
- Idaho Falls Marathon 5K
- 6.0%
- Spring Dash (Coeur d'Alene) 5K
- 22.5%
Flat grade share
- Idaho Falls Marathon 5K
- 88.2%
- Spring Dash (Coeur d'Alene) 5K
- 27.9%
GAP factor
- Idaho Falls Marathon 5K
- 0.3%
- Spring Dash (Coeur d'Alene) 5K
- 4.1%
Cutoff
- Idaho Falls Marathon 5K
- 2:00:00
- Spring Dash (Coeur d'Alene) 5K
- Unavailable
Entry model
- Idaho Falls Marathon 5K
- Open
- Spring Dash (Coeur d'Alene) 5K
- 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, Idaho Falls Marathon 5K or Spring Dash (Coeur d'Alene) 5K?
Idaho Falls Marathon 5K has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.