Flat grade share
- Run the Rainbow for Children's Marathon
- 60.6% Favoured
Run the Rainbow for Children's Marathon vs Run the Rainbow for Children's Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofRun the Rainbow for Children's Marathon or Run the Rainbow for Children's Half Marathon — which comes out ahead?
Run the Rainbow for Children's Marathon has the stronger available profile on flat grade share and course flatness.
Route comparison snapshot
Run the Rainbow for Children's Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.9% Favoured
- flat grade share
- 60.6% Favoured
- lower ascent
- 407 m
- climbing density
- 9.7 m/km
- net elevation
- 0 m
- maximum grade
- 10.6%
Run the Rainbow for Children's Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 1.1%
- flat grade share
- 56.3%
- lower ascent
- 226 m
- climbing density
- 10.7 m/km
- net elevation
- -0 m
- maximum grade
- 8.9%
| Metric | Run the Rainbow for Children's Marathon | Run the Rainbow for Children's Half Marathon |
|---|---|---|
| Flat grade share | 60.6% ✓ | 56.3% |
| GAP factor (% slower than flat) | 0.9% ✓ | 1.1% |
| Uphill share | 19.7% | 22.3% |
| Steep-up share | 1.2% | 1.6% |
| Downhill share | 19.7% | 21.4% |
| Total ascent (m) | 407 m | 226 m |
| Climbing density (m/km) | 9.7 m/km | 10.7 m/km |
| Longest climb length (m) | 730 m | 740 m |
| Longest climb gain (m) | 24 m | 24 m |
| Longest climb average grade | 3.3% | 3.2% |
| Total descent (m) | 407 m | 226 m |
| Net elevation (m) | 0 m | -0 m |
| Max absolute grade | 10.6% | 8.9% |
| Start elevation (m) | 89 m | 89 m |
| Finish elevation (m) | 89 m | 89 m |
| Scenic score | 69/100 | 69/100 |
| Conditions | 68/100 | 68/100 |
GAP factor (% slower than flat)
- Run the Rainbow for Children's Marathon
- 0.9% 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
Conditions
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.
Same-distance comparisons are most meaningful; cross-distance metrics are contextual.
Race facts that change the decision
| Fact | Run the Rainbow for Children's Marathon | Run the Rainbow for Children's Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-03-21 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-03-21 (legacy event-level date). |
| Location | Jackson, Mississippi | Jackson, Mississippi |
| Actual distance | 42.2 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Surface | Paved city streets through downtown Jackson and surrounding neighborhoods. | Paved city streets through downtown Jackson and surrounding neighborhoods. |
| Elevation character | Rolling | Unavailable |
| Terrain | Road, Beach | Beach |
| Scenery | City, Waterfront, Historic, Desert | City, Waterfront, Historic, Desert |
| Atmosphere | Charity, Community | Charity, Community |
| Technicality | Non Technical | Unavailable |
| Total ascent | 407 m | 226 m |
| Climbing density | 9.7 m/km | 10.7 m/km |
| Total descent | 407 m | 226 m |
| Net elevation | 0 m | -0 m |
| Max absolute grade | 10.6% | 8.9% |
| Flat grade share | 60.6% | 56.3% |
| GAP factor | 0.9% | 1.1% |
| Entry model | Open | Open |
Schedule
- Run the Rainbow for Children's Marathon
Exact race date not confirmed. Event weekend starts 2026-03-21 (legacy event-level date).
- Run the Rainbow for Children's Half Marathon
Exact race date not confirmed. Event weekend starts 2026-03-21 (legacy event-level date).
Location
- Run the Rainbow for Children's Marathon
- Jackson, Mississippi
- Run the Rainbow for Children's Half Marathon
- Jackson, Mississippi
Actual distance
- Run the Rainbow for Children's Marathon
- 42.2 km
- Run the Rainbow for Children's Half Marathon
- 21.1 km
raceindex.org mapped route held
- Run the Rainbow for Children's Marathon
- Held
- Run the Rainbow for Children's Half Marathon
- Held
raceindex.org elevation profile held
- Run the Rainbow for Children's Marathon
- Held
- Run the Rainbow for Children's Half Marathon
- Held
Surface
- Run the Rainbow for Children's Marathon
- Paved city streets through downtown Jackson and surrounding neighborhoods.
- Run the Rainbow for Children's Half Marathon
- Paved city streets through downtown Jackson and surrounding neighborhoods.
Elevation character
- Run the Rainbow for Children's Marathon
- Rolling
- Run the Rainbow for Children's Half Marathon
- Unavailable
Terrain
- Run the Rainbow for Children's Marathon
- Road, Beach
- Run the Rainbow for Children's Half Marathon
- Beach
Scenery
- Run the Rainbow for Children's Marathon
- City, Waterfront, Historic, Desert
- Run the Rainbow for Children's Half Marathon
- City, Waterfront, Historic, Desert
Atmosphere
- Run the Rainbow for Children's Marathon
- Charity, Community
- Run the Rainbow for Children's Half Marathon
- Charity, Community
Technicality
- Run the Rainbow for Children's Marathon
- Non Technical
- Run the Rainbow for Children's Half Marathon
- Unavailable
Total ascent
- Run the Rainbow for Children's Marathon
- 407 m
- Run the Rainbow for Children's Half Marathon
- 226 m
Climbing density
- Run the Rainbow for Children's Marathon
- 9.7 m/km
- Run the Rainbow for Children's Half Marathon
- 10.7 m/km
Total descent
- Run the Rainbow for Children's Marathon
- 407 m
- Run the Rainbow for Children's Half Marathon
- 226 m
Net elevation
- Run the Rainbow for Children's Marathon
- 0 m
- Run the Rainbow for Children's Half Marathon
- -0 m
Max absolute grade
- Run the Rainbow for Children's Marathon
- 10.6%
- Run the Rainbow for Children's Half Marathon
- 8.9%
Flat grade share
- Run the Rainbow for Children's Marathon
- 60.6%
- Run the Rainbow for Children's Half Marathon
- 56.3%
GAP factor
- Run the Rainbow for Children's Marathon
- 0.9%
- Run the Rainbow for Children's Half Marathon
- 1.1%
Entry model
- Run the Rainbow for Children's Marathon
- Open
- Run the Rainbow for Children's 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, Run the Rainbow for Children's Marathon or Run the Rainbow for Children's Half Marathon?
Run the Rainbow for Children's Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.