Flat grade share
- Chester Half Marathon
- 85.6% Favoured
Chester Half Marathon vs Wilmslow Half Marathon
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofChester Half Marathon or Wilmslow Half Marathon — which comes out ahead?
Chester Half Marathon has the stronger available profile on flat grade share, scenery score and conditions.
Route comparison snapshot
Chester Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.9%
- flat grade share
- 85.6% Favoured
- lower ascent
- 116 m
- climbing density
- 5.5 m/km
- net elevation
- 25 m
- maximum grade
- 7.0%
Wilmslow Half Marathon
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.2% Favoured
- flat grade share
- 82.3%
- lower ascent
- 111 m
- climbing density
- 5.2 m/km
- net elevation
- -3 m
- maximum grade
- 5.9%
| Metric | Chester Half Marathon | Wilmslow Half Marathon |
|---|---|---|
| Flat grade share | 85.6% ✓ | 82.3% |
| GAP factor (% slower than flat) | 0.9% | 0.2% ✓ |
| Uphill share | 8.2% | 9.3% |
| Steep-up share | 0.6% | 0.0% |
| Downhill share | 6.2% | 8.4% |
| Total ascent (m) | 116 m | 111 m |
| Climbing density (m/km) | 5.5 m/km | 5.2 m/km |
| Longest climb length (m) | 1,440 m | 1,010 m |
| Longest climb gain (m) | 29 m | 14 m |
| Longest climb average grade | 2.0% | 1.4% |
| Total descent (m) | 91 m | 114 m |
| Net elevation (m) | 25 m | -3 m |
| Max absolute grade | 7.0% | 5.9% |
| Start elevation (m) | 5 m | 80 m |
| Finish elevation (m) | 30 m | 77 m |
| Scenic score | 36/100 ✓ | 16/100 |
| Conditions | 87/100 ✓ | 81/100 |
GAP factor (% slower than flat)
- Wilmslow Half Marathon
- 0.2% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- Chester Half Marathon
- 5.5 m/km
- Wilmslow Half Marathon
- 5.2 m/km
Longest climb length (m)
- Chester Half Marathon
- 1,440 m
- Wilmslow Half Marathon
- 1,010 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
- Chester Half Marathon
- 36/100 Favoured
- Wilmslow Half Marathon
- 16/100
Conditions
- Chester Half Marathon
- 87/100 Favoured
- Wilmslow Half Marathon
- 81/100
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 | Chester Half Marathon | Wilmslow Half Marathon |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2027-05-16 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2027-03-21 (legacy event-level date). |
| Location | Chester, North West | Wilmslow, North West |
| Actual distance | 21.1 km | 21.1 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Point To Point | Loop |
| Surface | Road | Road |
| Elevation character | Flat | Flat |
| Terrain | Road | Road |
| Scenery | City, Historic, Countryside | Countryside |
| Atmosphere | Community, Competitive | Community, Competitive, Charity |
| Technicality | Moderate | Non Technical |
| Total ascent | 116 m | 111 m |
| Climbing density | 5.5 m/km | 5.2 m/km |
| Total descent | 91 m | 114 m |
| Net elevation | 25 m | -3 m |
| Max absolute grade | 7.0% | 5.9% |
| Flat grade share | 85.6% | 82.3% |
| GAP factor | 0.9% | 0.2% |
| Cutoff | 3:00:00 | 3:00:00 |
| Field cap | Unavailable | 5,000 |
| Entry model | Open | Open |
| Measured course | Yes | Yes |
| Qualifying status | Championship | Unavailable |
Schedule
- Chester Half Marathon
Exact race date not confirmed. Event weekend starts 2027-05-16 (legacy event-level date).
- Wilmslow Half Marathon
Exact race date not confirmed. Event weekend starts 2027-03-21 (legacy event-level date).
Location
- Chester Half Marathon
- Chester, North West
- Wilmslow Half Marathon
- Wilmslow, North West
Actual distance
- Chester Half Marathon
- 21.1 km
- Wilmslow Half Marathon
- 21.1 km
raceindex.org mapped route held
- Chester Half Marathon
- Held
- Wilmslow Half Marathon
- Held
raceindex.org elevation profile held
- Chester Half Marathon
- Held
- Wilmslow Half Marathon
- Held
Course type
- Chester Half Marathon
- Point To Point
- Wilmslow Half Marathon
- Loop
Surface
- Chester Half Marathon
- Road
- Wilmslow Half Marathon
- Road
Elevation character
- Chester Half Marathon
- Flat
- Wilmslow Half Marathon
- Flat
Terrain
- Chester Half Marathon
- Road
- Wilmslow Half Marathon
- Road
Scenery
- Chester Half Marathon
- City, Historic, Countryside
- Wilmslow Half Marathon
- Countryside
Atmosphere
- Chester Half Marathon
- Community, Competitive
- Wilmslow Half Marathon
- Community, Competitive, Charity
Technicality
- Chester Half Marathon
- Moderate
- Wilmslow Half Marathon
- Non Technical
Total ascent
- Chester Half Marathon
- 116 m
- Wilmslow Half Marathon
- 111 m
Climbing density
- Chester Half Marathon
- 5.5 m/km
- Wilmslow Half Marathon
- 5.2 m/km
Total descent
- Chester Half Marathon
- 91 m
- Wilmslow Half Marathon
- 114 m
Net elevation
- Chester Half Marathon
- 25 m
- Wilmslow Half Marathon
- -3 m
Max absolute grade
- Chester Half Marathon
- 7.0%
- Wilmslow Half Marathon
- 5.9%
Flat grade share
- Chester Half Marathon
- 85.6%
- Wilmslow Half Marathon
- 82.3%
GAP factor
- Chester Half Marathon
- 0.9%
- Wilmslow Half Marathon
- 0.2%
Cutoff
- Chester Half Marathon
- 3:00:00
- Wilmslow Half Marathon
- 3:00:00
Field cap
- Chester Half Marathon
- Unavailable
- Wilmslow Half Marathon
- 5,000
Entry model
- Chester Half Marathon
- Open
- Wilmslow Half Marathon
- Open
Measured course
- Chester Half Marathon
- Yes
- Wilmslow Half Marathon
- Yes
Qualifying status
- Chester Half Marathon
- Championship
- Wilmslow Half 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, Chester Half Marathon or Wilmslow Half Marathon?
Wilmslow Half Marathon has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.