Flat grade share
- Richmond Park Marathon (London)
- 63.0% Favoured
Richmond Park Marathon (London) vs Richmond Park Marathon (London) Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofRichmond Park Marathon (London) or Richmond Park Marathon (London) Half Marathon — which comes out ahead?
Richmond Park Marathon (London) and Richmond Park Marathon (London) Half Marathon split the available advantages, so the better choice depends on which metric matters most to the runner.
Route comparison snapshot
Richmond Park Marathon (London)
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 1.2%
- flat grade share
- 63.0% Favoured
- lower ascent
- 423 m
- climbing density
- 10.0 m/km
- net elevation
- 6 m
- maximum grade
- 15.3%
Richmond Park Marathon (London) Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 1.0% Favoured
- flat grade share
- 59.3%
- lower ascent
- 204 m
- climbing density
- 9.6 m/km
- net elevation
- 3 m
- maximum grade
- 13.2%
| Metric | Richmond Park Marathon (London) | Richmond Park Marathon (London) Half Marathon |
|---|---|---|
| Flat grade share | 63.0% ✓ | 59.3% |
| GAP factor (% slower than flat) | 1.2% | 1.0% ✓ |
| Uphill share | 17.0% | 20.3% |
| Steep-up share | 2.7% | 3.3% |
| Downhill share | 19.9% | 20.4% |
| Total ascent (m) | 423 m | 204 m |
| Climbing density (m/km) | 10.0 m/km | 9.6 m/km |
| Longest climb length (m) | 1,600 m | 1,670 m |
| Longest climb gain (m) | 45 m | 42 m |
| Longest climb average grade | 2.8% | 2.5% |
| Total descent (m) | 417 m | 201 m |
| Net elevation (m) | 6 m | 3 m |
| Max absolute grade | 15.3% | 13.2% |
| Start elevation (m) | 19 m | 19 m |
| Finish elevation (m) | 25 m | 22 m |
| Scenic score | 70/100 | 70/100 |
| Conditions | 65/100 | 65/100 |
GAP factor (% slower than flat)
- Richmond Park Marathon (London) Half Marathon
- 1.0% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Richmond Park Marathon (London)
- 10.0 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 | Richmond Park Marathon (London) | Richmond Park Marathon (London) Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-08-23 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-08-23 (legacy event-level date). |
| Location | London, London | London, London |
| Actual distance | 42.2 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Laps | Loop |
| Surface | Mixed terrain on grass paths and the Tamsin Trail with some sealed sections. | Mixed grass paths and the Tamsin Trail. |
| Elevation character | Gently Rolling | Unavailable |
| Terrain | Trail, Mixed | Unavailable |
| Scenery | Parkland, Forest, Historic | Parkland, Forest, Historic |
| Atmosphere | Community, Scenic Tour | Community, Scenic Tour |
| Technicality | Non Technical | Unavailable |
| Total ascent | 423 m | 204 m |
| Climbing density | 10.0 m/km | 9.6 m/km |
| Total descent | 417 m | 201 m |
| Net elevation | 6 m | 3 m |
| Max absolute grade | 15.3% | 13.2% |
| Flat grade share | 63.0% | 59.3% |
| GAP factor | 1.2% | 1.0% |
| Cutoff | 6:30:00 | Unavailable |
| Entry model | Open | Open |
Schedule
- Richmond Park Marathon (London)
Exact race date not confirmed. Event weekend starts 2026-08-23 (legacy event-level date).
- Richmond Park Marathon (London) Half Marathon
Exact race date not confirmed. Event weekend starts 2026-08-23 (legacy event-level date).
Location
- Richmond Park Marathon (London)
- London, London
- Richmond Park Marathon (London) Half Marathon
- London, London
Actual distance
- Richmond Park Marathon (London)
- 42.2 km
- Richmond Park Marathon (London) Half Marathon
- 21.1 km
raceindex.org mapped route held
- Richmond Park Marathon (London)
- Held
- Richmond Park Marathon (London) Half Marathon
- Held
raceindex.org elevation profile held
- Richmond Park Marathon (London)
- Held
- Richmond Park Marathon (London) Half Marathon
- Held
Course type
- Richmond Park Marathon (London)
- Laps
- Richmond Park Marathon (London) Half Marathon
- Loop
Surface
- Richmond Park Marathon (London)
- Mixed terrain on grass paths and the Tamsin Trail with some sealed sections.
- Richmond Park Marathon (London) Half Marathon
- Mixed grass paths and the Tamsin Trail.
Elevation character
- Richmond Park Marathon (London)
- Gently Rolling
- Richmond Park Marathon (London) Half Marathon
- Unavailable
Terrain
- Richmond Park Marathon (London)
- Trail, Mixed
- Richmond Park Marathon (London) Half Marathon
- Unavailable
Scenery
- Richmond Park Marathon (London)
- Parkland, Forest, Historic
- Richmond Park Marathon (London) Half Marathon
- Parkland, Forest, Historic
Atmosphere
- Richmond Park Marathon (London)
- Community, Scenic Tour
- Richmond Park Marathon (London) Half Marathon
- Community, Scenic Tour
Technicality
- Richmond Park Marathon (London)
- Non Technical
- Richmond Park Marathon (London) Half Marathon
- Unavailable
Total ascent
- Richmond Park Marathon (London)
- 423 m
- Richmond Park Marathon (London) Half Marathon
- 204 m
Climbing density
- Richmond Park Marathon (London)
- 10.0 m/km
- Richmond Park Marathon (London) Half Marathon
- 9.6 m/km
Total descent
- Richmond Park Marathon (London)
- 417 m
- Richmond Park Marathon (London) Half Marathon
- 201 m
Net elevation
- Richmond Park Marathon (London)
- 6 m
- Richmond Park Marathon (London) Half Marathon
- 3 m
Max absolute grade
- Richmond Park Marathon (London)
- 15.3%
- Richmond Park Marathon (London) Half Marathon
- 13.2%
Flat grade share
- Richmond Park Marathon (London)
- 63.0%
- Richmond Park Marathon (London) Half Marathon
- 59.3%
GAP factor
- Richmond Park Marathon (London)
- 1.2%
- Richmond Park Marathon (London) Half Marathon
- 1.0%
Cutoff
- Richmond Park Marathon (London)
- 6:30:00
- Richmond Park Marathon (London) Half Marathon
- Unavailable
Entry model
- Richmond Park Marathon (London)
- Open
- Richmond Park Marathon (London) 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, Richmond Park Marathon (London) or Richmond Park Marathon (London) Half Marathon?
Richmond Park Marathon (London) Half Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.