Flat grade share
- Mississippi Blues Marathon
- 65.3% Favoured
Run the Rainbow for Children's Marathon vs Mississippi Blues 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 Mississippi Blues Marathon — which comes out ahead?
Mississippi Blues Marathon has the stronger available profile on flat grade share, course flatness and conditions.
Route comparison snapshot
Run the Rainbow for Children's Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.9%
- flat grade share
- 60.6%
- lower ascent
- 407 m
- climbing density
- 9.7 m/km
- net elevation
- 0 m
- maximum grade
- 10.6%
Mississippi Blues Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.8% Favoured
- flat grade share
- 65.3% Favoured
- lower ascent
- 401 m
- climbing density
- 9.5 m/km
- net elevation
- 2 m
- maximum grade
- 10.2%
| Metric | Run the Rainbow for Children's Marathon | Mississippi Blues Marathon |
|---|---|---|
| Flat grade share | 60.6% | 65.3% ✓ |
| GAP factor (% slower than flat) | 0.9% | 0.8% ✓ |
| Uphill share | 19.7% | 18.3% |
| Steep-up share | 1.2% | 0.7% |
| Downhill share | 19.7% | 16.4% |
| Total ascent (m) | 407 m | 401 m |
| Climbing density (m/km) | 9.7 m/km | 9.5 m/km |
| Longest climb length (m) | 730 m | 1,230 m |
| Longest climb gain (m) | 24 m | 19 m |
| Longest climb average grade | 3.3% | 1.6% |
| Total descent (m) | 407 m | 399 m |
| Net elevation (m) | 0 m | 2 m |
| Max absolute grade | 10.6% | 10.2% |
| Start elevation (m) | 89 m | 98 m |
| Finish elevation (m) | 89 m | 100 m |
| Scenic score | 69/100 ✓ | 58/100 |
| Conditions | 68/100 | 78/100 ✓ |
GAP factor (% slower than flat)
- Mississippi Blues Marathon
- 0.8% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Mississippi Blues Marathon
- 9.5 m/km
Longest climb length (m)
- Mississippi Blues Marathon
- 1,230 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
- Run the Rainbow for Children's Marathon
- 69/100 Favoured
Conditions
- Mississippi Blues Marathon
- 78/100 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 | Run the Rainbow for Children's Marathon | Mississippi Blues 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 2027-02-20 (legacy event-level date). |
| Location | Jackson, Mississippi | Jackson, Mississippi |
| Actual distance | 42.2 km | 42.2 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Unavailable | Laps |
| Surface | Paved city streets through downtown Jackson and surrounding neighborhoods. | Paved city streets. |
| Elevation character | Rolling | Rolling |
| Terrain | Road, Beach | Road |
| Scenery | City, Waterfront, Historic, Desert | City, Historic, Waterfront, Parkland |
| Atmosphere | Charity, Community | Community, Festival |
| Technicality | Non Technical | Non Technical |
| Total ascent | 407 m | 401 m |
| Climbing density | 9.7 m/km | 9.5 m/km |
| Total descent | 407 m | 399 m |
| Net elevation | 0 m | 2 m |
| Max absolute grade | 10.6% | 10.2% |
| Flat grade share | 60.6% | 65.3% |
| GAP factor | 0.9% | 0.8% |
| Entry model | Open | Open |
| Qualifying status | Unavailable | Boston_equivalent |
Schedule
- Run the Rainbow for Children's Marathon
Exact race date not confirmed. Event weekend starts 2026-03-21 (legacy event-level date).
- Mississippi Blues Marathon
Exact race date not confirmed. Event weekend starts 2027-02-20 (legacy event-level date).
Location
- Run the Rainbow for Children's Marathon
- Jackson, Mississippi
- Mississippi Blues Marathon
- Jackson, Mississippi
Actual distance
- Run the Rainbow for Children's Marathon
- 42.2 km
- Mississippi Blues Marathon
- 42.2 km
raceindex.org mapped route held
- Run the Rainbow for Children's Marathon
- Held
- Mississippi Blues Marathon
- Held
raceindex.org elevation profile held
- Run the Rainbow for Children's Marathon
- Held
- Mississippi Blues Marathon
- Held
Course type
- Run the Rainbow for Children's Marathon
- Unavailable
- Mississippi Blues Marathon
- Laps
Surface
- Run the Rainbow for Children's Marathon
- Paved city streets through downtown Jackson and surrounding neighborhoods.
- Mississippi Blues Marathon
- Paved city streets.
Elevation character
- Run the Rainbow for Children's Marathon
- Rolling
- Mississippi Blues Marathon
- Rolling
Terrain
- Run the Rainbow for Children's Marathon
- Road, Beach
- Mississippi Blues Marathon
- Road
Scenery
- Run the Rainbow for Children's Marathon
- City, Waterfront, Historic, Desert
- Mississippi Blues Marathon
- City, Historic, Waterfront, Parkland
Atmosphere
- Run the Rainbow for Children's Marathon
- Charity, Community
- Mississippi Blues Marathon
- Community, Festival
Technicality
- Run the Rainbow for Children's Marathon
- Non Technical
- Mississippi Blues Marathon
- Non Technical
Total ascent
- Run the Rainbow for Children's Marathon
- 407 m
- Mississippi Blues Marathon
- 401 m
Climbing density
- Run the Rainbow for Children's Marathon
- 9.7 m/km
- Mississippi Blues Marathon
- 9.5 m/km
Total descent
- Run the Rainbow for Children's Marathon
- 407 m
- Mississippi Blues Marathon
- 399 m
Net elevation
- Run the Rainbow for Children's Marathon
- 0 m
- Mississippi Blues Marathon
- 2 m
Max absolute grade
- Run the Rainbow for Children's Marathon
- 10.6%
- Mississippi Blues Marathon
- 10.2%
Flat grade share
- Run the Rainbow for Children's Marathon
- 60.6%
- Mississippi Blues Marathon
- 65.3%
GAP factor
- Run the Rainbow for Children's Marathon
- 0.9%
- Mississippi Blues Marathon
- 0.8%
Entry model
- Run the Rainbow for Children's Marathon
- Open
- Mississippi Blues Marathon
- Open
Qualifying status
- Run the Rainbow for Children's Marathon
- Unavailable
- Mississippi Blues 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, Run the Rainbow for Children's Marathon or Mississippi Blues Marathon?
Mississippi Blues Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.