Flat grade share
- Mississippi Blues Marathon Half Marathon
- 65.3% Favoured
Mississippi Blues Marathon Half 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 ofMississippi Blues Marathon Half Marathon or Run the Rainbow for Children's Half Marathon — which comes out ahead?
Mississippi Blues Marathon Half Marathon has the stronger available profile on flat grade share, course flatness and conditions.
Route comparison snapshot
Mississippi Blues Marathon Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.8% Favoured
- flat grade share
- 65.3% Favoured
- lower ascent
- 201 m
- climbing density
- 9.5 m/km
- net elevation
- 1 m
- maximum grade
- 10.2%
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 | Mississippi Blues Marathon Half Marathon | Run the Rainbow for Children's Half Marathon |
|---|---|---|
| Flat grade share | 65.3% ✓ | 56.3% |
| GAP factor (% slower than flat) | 0.8% ✓ | 1.1% |
| Uphill share | 18.3% | 22.3% |
| Steep-up share | 0.7% | 1.6% |
| Downhill share | 16.4% | 21.4% |
| Total ascent (m) | 201 m | 226 m |
| Climbing density (m/km) | 9.5 m/km | 10.7 m/km |
| Longest climb length (m) | 1,230 m | 740 m |
| Longest climb gain (m) | 19 m | 24 m |
| Longest climb average grade | 1.6% | 3.2% |
| Total descent (m) | 199 m | 226 m |
| Net elevation (m) | 1 m | -0 m |
| Max absolute grade | 10.2% | 8.9% |
| Start elevation (m) | 98 m | 89 m |
| Finish elevation (m) | 99 m | 89 m |
| Scenic score | 58/100 | 69/100 ✓ |
| Conditions | 78/100 ✓ | 68/100 |
GAP factor (% slower than flat)
- Mississippi Blues Marathon Half Marathon
- 0.8% 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
- Run the Rainbow for Children's Half Marathon
- 69/100 Favoured
Conditions
- Mississippi Blues Marathon Half 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 | Mississippi Blues Marathon Half Marathon | Run the Rainbow for Children's Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2027-02-20 (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 | 21.1 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Surface | Paved city streets. | Paved city streets through downtown Jackson and surrounding neighborhoods. |
| Terrain | Road | Beach |
| Scenery | City, Waterfront, Historic, Parkland | City, Waterfront, Historic, Desert |
| Atmosphere | Community, Festival | Charity, Community |
| Total ascent | 201 m | 226 m |
| Climbing density | 9.5 m/km | 10.7 m/km |
| Total descent | 199 m | 226 m |
| Net elevation | 1 m | -0 m |
| Max absolute grade | 10.2% | 8.9% |
| Flat grade share | 65.3% | 56.3% |
| GAP factor | 0.8% | 1.1% |
| Entry model | Open | Open |
Schedule
- Mississippi Blues Marathon Half Marathon
Exact race date not confirmed. Event weekend starts 2027-02-20 (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
- Mississippi Blues Marathon Half Marathon
- Jackson, Mississippi
- Run the Rainbow for Children's Half Marathon
- Jackson, Mississippi
Actual distance
- Mississippi Blues Marathon Half Marathon
- 21.1 km
- Run the Rainbow for Children's Half Marathon
- 21.1 km
raceindex.org mapped route held
- Mississippi Blues Marathon Half Marathon
- Held
- Run the Rainbow for Children's Half Marathon
- Held
raceindex.org elevation profile held
- Mississippi Blues Marathon Half Marathon
- Held
- Run the Rainbow for Children's Half Marathon
- Held
Surface
- Mississippi Blues Marathon Half Marathon
- Paved city streets.
- Run the Rainbow for Children's Half Marathon
- Paved city streets through downtown Jackson and surrounding neighborhoods.
Terrain
- Mississippi Blues Marathon Half Marathon
- Road
- Run the Rainbow for Children's Half Marathon
- Beach
Scenery
- Mississippi Blues Marathon Half Marathon
- City, Waterfront, Historic, Parkland
- Run the Rainbow for Children's Half Marathon
- City, Waterfront, Historic, Desert
Atmosphere
- Mississippi Blues Marathon Half Marathon
- Community, Festival
- Run the Rainbow for Children's Half Marathon
- Charity, Community
Total ascent
- Mississippi Blues Marathon Half Marathon
- 201 m
- Run the Rainbow for Children's Half Marathon
- 226 m
Climbing density
- Mississippi Blues Marathon Half Marathon
- 9.5 m/km
- Run the Rainbow for Children's Half Marathon
- 10.7 m/km
Total descent
- Mississippi Blues Marathon Half Marathon
- 199 m
- Run the Rainbow for Children's Half Marathon
- 226 m
Net elevation
- Mississippi Blues Marathon Half Marathon
- 1 m
- Run the Rainbow for Children's Half Marathon
- -0 m
Max absolute grade
- Mississippi Blues Marathon Half Marathon
- 10.2%
- Run the Rainbow for Children's Half Marathon
- 8.9%
Flat grade share
- Mississippi Blues Marathon Half Marathon
- 65.3%
- Run the Rainbow for Children's Half Marathon
- 56.3%
GAP factor
- Mississippi Blues Marathon Half Marathon
- 0.8%
- Run the Rainbow for Children's Half Marathon
- 1.1%
Entry model
- Mississippi Blues Marathon Half 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, Mississippi Blues Marathon Half Marathon or Run the Rainbow for Children's Half Marathon?
Mississippi Blues Marathon Half Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.