Flat grade share
- Maidenhead Half Marathon 10K
- Unavailable
Southampton Marathon 10K vs Maidenhead Half Marathon 10K
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofSouthampton Marathon 10K or Maidenhead Half Marathon 10K — which comes out ahead?
Southampton Marathon 10K has the stronger available profile on scenery score and conditions.
Route comparison snapshot
Southampton Marathon 10K
- Mapped route
- Held Favoured
- Elevation profile
- Held Favoured
- course flatness
- 1.4%
- flat grade share
- 76.8%
- lower ascent
- 70 m
- climbing density
- 7.0 m/km
- net elevation
- 14 m
- maximum grade
- 13.8%
Maidenhead Half Marathon 10K
- Mapped route
- Not held
- Elevation profile
- Not held
- course flatness
- Unavailable
- flat grade share
- Unavailable
- lower ascent
- Unavailable
- climbing density
- Unavailable
- net elevation
- Unavailable
- maximum grade
- Unavailable
| Metric | Southampton Marathon 10K | Maidenhead Half Marathon 10K |
|---|---|---|
| Flat grade share | 76.8% | Unavailable |
| GAP factor (% slower than flat) | 1.4% | Unavailable |
| Uphill share | 13.4% | Unavailable |
| Steep-up share | 1.6% | Unavailable |
| Downhill share | 9.7% | Unavailable |
| Total ascent (m) | 70 m | Unavailable |
| Climbing density (m/km) | 7.0 m/km | Unavailable |
| Longest climb length (m) | 750 m | Unavailable |
| Longest climb gain (m) | 17 m | Unavailable |
| Longest climb average grade | 2.2% | Unavailable |
| Total descent (m) | 56 m | Unavailable |
| Net elevation (m) | 14 m | Unavailable |
| Max absolute grade | 13.8% | Unavailable |
| Start elevation (m) | 3 m | Unavailable |
| Finish elevation (m) | 18 m | Unavailable |
| Value | Unavailable | 85/100 |
| Scenic score | 86/100 ✓ | 63/100 |
| Conditions | 87/100 ✓ | 84/100 |
| Entry fee (GBP) | Unavailable | £30 |
| Lowest modelled true cost (GBP) | Unavailable | £160 |
GAP factor (% slower than flat)
- Maidenhead Half Marathon 10K
- Unavailable
Uphill share
- Maidenhead Half Marathon 10K
- Unavailable
Steep-up share
- Maidenhead Half Marathon 10K
- Unavailable
Downhill share
- Maidenhead Half Marathon 10K
- Unavailable
Total ascent (m)
- Maidenhead Half Marathon 10K
- Unavailable
Climbing density (m/km)
- Southampton Marathon 10K
- 7.0 m/km
- Maidenhead Half Marathon 10K
- Unavailable
Longest climb length (m)
- Maidenhead Half Marathon 10K
- Unavailable
Longest climb gain (m)
- Maidenhead Half Marathon 10K
- Unavailable
Longest climb average grade
- Maidenhead Half Marathon 10K
- Unavailable
Total descent (m)
- Maidenhead Half Marathon 10K
- Unavailable
Net elevation (m)
- Maidenhead Half Marathon 10K
- Unavailable
Max absolute grade
- Maidenhead Half Marathon 10K
- Unavailable
Start elevation (m)
- Maidenhead Half Marathon 10K
- Unavailable
Finish elevation (m)
- Maidenhead Half Marathon 10K
- Unavailable
Value
- Southampton Marathon 10K
- Unavailable
Scenic score
- Southampton Marathon 10K
- 86/100 Favoured
Conditions
- Southampton Marathon 10K
- 87/100 Favoured
Entry fee (GBP)
- Southampton Marathon 10K
- Unavailable
Lowest modelled true cost (GBP)
- Southampton Marathon 10K
- Unavailable
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 | Southampton Marathon 10K | Maidenhead Half Marathon 10K |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2027-05-02 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-10-25 (legacy event-level date). |
| Location | Southampton, South East | Maidenhead, South East |
| Actual distance | 10 km | 10 km |
| raceindex.org mapped route held | Held | Not held |
| raceindex.org elevation profile held | Held | Not held |
| Surface | Unavailable | Road |
| Laps | Unavailable | 1 |
| Terrain | Unavailable | Road |
| Scenery | City, Coastal, Historic, Parkland, Waterfront, Riverside | Countryside, Moorland, City, Riverside, Parkland |
| Atmosphere | Big City, Festival, Community | Community |
| Total ascent | 70 m | Unavailable |
| Climbing density | 7.0 m/km | Unavailable |
| Total descent | 56 m | Unavailable |
| Net elevation | 14 m | Unavailable |
| Max absolute grade | 13.8% | Unavailable |
| Flat grade share | 76.8% | Unavailable |
| GAP factor | 1.4% | Unavailable |
| Cutoff | 2:00:00 | Unavailable |
| Entry model | Open | Open |
| Entry fee | Unavailable | £30 |
| Lowest modelled true cost | Unavailable | £160 |
| Cost model origin | Unavailable | National Average |
| Measured course | Yes | Yes |
Schedule
- Southampton Marathon 10K
Exact race date not confirmed. Event weekend starts 2027-05-02 (legacy event-level date).
- Maidenhead Half Marathon 10K
Exact race date not confirmed. Event weekend starts 2026-10-25 (legacy event-level date).
Location
- Southampton Marathon 10K
- Southampton, South East
- Maidenhead Half Marathon 10K
- Maidenhead, South East
Actual distance
- Southampton Marathon 10K
- 10 km
- Maidenhead Half Marathon 10K
- 10 km
raceindex.org mapped route held
- Southampton Marathon 10K
- Held
- Maidenhead Half Marathon 10K
- Not held
raceindex.org elevation profile held
- Southampton Marathon 10K
- Held
- Maidenhead Half Marathon 10K
- Not held
Surface
- Southampton Marathon 10K
- Unavailable
- Maidenhead Half Marathon 10K
- Road
Laps
- Southampton Marathon 10K
- Unavailable
- Maidenhead Half Marathon 10K
- 1
Terrain
- Southampton Marathon 10K
- Unavailable
- Maidenhead Half Marathon 10K
- Road
Scenery
- Southampton Marathon 10K
- City, Coastal, Historic, Parkland, Waterfront, Riverside
- Maidenhead Half Marathon 10K
- Countryside, Moorland, City, Riverside, Parkland
Atmosphere
- Southampton Marathon 10K
- Big City, Festival, Community
- Maidenhead Half Marathon 10K
- Community
Total ascent
- Southampton Marathon 10K
- 70 m
- Maidenhead Half Marathon 10K
- Unavailable
Climbing density
- Southampton Marathon 10K
- 7.0 m/km
- Maidenhead Half Marathon 10K
- Unavailable
Total descent
- Southampton Marathon 10K
- 56 m
- Maidenhead Half Marathon 10K
- Unavailable
Net elevation
- Southampton Marathon 10K
- 14 m
- Maidenhead Half Marathon 10K
- Unavailable
Max absolute grade
- Southampton Marathon 10K
- 13.8%
- Maidenhead Half Marathon 10K
- Unavailable
Flat grade share
- Southampton Marathon 10K
- 76.8%
- Maidenhead Half Marathon 10K
- Unavailable
GAP factor
- Southampton Marathon 10K
- 1.4%
- Maidenhead Half Marathon 10K
- Unavailable
Cutoff
- Southampton Marathon 10K
- 2:00:00
- Maidenhead Half Marathon 10K
- Unavailable
Entry model
- Southampton Marathon 10K
- Open
- Maidenhead Half Marathon 10K
- Open
Entry fee
- Southampton Marathon 10K
- Unavailable
- Maidenhead Half Marathon 10K
- £30
Lowest modelled true cost
- Southampton Marathon 10K
- Unavailable
- Maidenhead Half Marathon 10K
- £160
Cost model origin
- Southampton Marathon 10K
- Unavailable
- Maidenhead Half Marathon 10K
- National Average
Measured course
- Southampton Marathon 10K
- Yes
- Maidenhead Half Marathon 10K
- Yes
Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.