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