Garstang 10K vs Wilmslow Half Marathon 10K

Name: Garstang 10K vs Wilmslow Half Marathon 10K comparison data
Creator: raceindex.org

Garstang 10K or Wilmslow Half Marathon 10K — which comes out ahead?

Wilmslow Half Marathon 10K has the stronger available profile on flat grade share, course flatness and conditions.

Route comparison snapshot

Garstang 10K

Mapped route: Held
Elevation profile: Held
course flatness: 0.5%
flat grade share: 65.3%
lower ascent: 80 m
climbing density: 8.0 m/km
net elevation: -1 m
maximum grade: 5.8%

Wilmslow Half Marathon 10K

Mapped route: Held
Elevation profile: Held
course flatness: 0.0% Favoured
flat grade share: 91.1% Favoured
lower ascent: 40 m
climbing density: 4.0 m/km
net elevation: -3 m
maximum grade: 3.4%

Head-to-head comparison
Metric	Garstang 10K	Wilmslow Half Marathon 10K
Flat grade share	65.3%	91.1% ✓
GAP factor (% slower than flat)	0.5%	0.0% ✓
Uphill share	15.7%	4.7%
Steep-up share	0.0%	0.0%
Downhill share	19.0%	4.2%
Total ascent (m)	80 m	40 m
Climbing density (m/km)	8.0 m/km	4.0 m/km
Longest climb length (m)	1,020 m	710 m
Longest climb gain (m)	19 m	7 m
Longest climb average grade	1.9%	1.0%
Total descent (m)	81 m	43 m
Net elevation (m)	-1 m	-3 m
Max absolute grade	5.8%	3.4%
Start elevation (m)	28 m	80 m
Finish elevation (m)	26 m	77 m
Value	86/100	Unavailable
Scenic score	16/100 ✓	13/100
Conditions	67/100	81/100 ✓
Entry fee (GBP)	£25	Unavailable
Lowest modelled true cost (GBP)	£155	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

Race facts comparison
Fact	Garstang 10K	Wilmslow Half Marathon 10K
Schedule	Exact race date not confirmed. Event weekend starts 2027-01-03 (legacy event-level date).	Exact race date not confirmed. Event weekend starts 2027-03-21 (legacy event-level date).
Location	Garstang, North West	Wilmslow, North West
Actual distance	10 km	10 km
raceindex.org mapped route held	Held	Held
raceindex.org elevation profile held	Held	Held
Course type	Loop	Unavailable
Surface	Road	Road
Elevation character	Rolling	Unavailable
Terrain	Road	Road
Scenery	Countryside	Countryside
Atmosphere	Community	Community, Competitive, Charity
Technicality	Non Technical	Unavailable
Total ascent	80 m	40 m
Climbing density	8.0 m/km	4.0 m/km
Total descent	81 m	43 m
Net elevation	-1 m	-3 m
Max absolute grade	5.8%	3.4%
Flat grade share	65.3%	91.1%
GAP factor	0.5%	0.0%
Cutoff	Unavailable	1:45:00
Entry model	Open	Open
Entry fee	£25	Unavailable
Lowest modelled true cost	£155	Unavailable
Cost model origin	National Average	Unavailable
Measured course	Yes	Yes

Schedule

Garstang 10K: Exact race date not confirmed. Event weekend starts 2027-01-03 (legacy event-level date).
Wilmslow Half Marathon 10K: Exact race date not confirmed. Event weekend starts 2027-03-21 (legacy event-level date).

Location

Garstang 10K: Garstang, North West
Wilmslow Half Marathon 10K: Wilmslow, North West

Actual distance

Garstang 10K: 10 km
Wilmslow Half Marathon 10K: 10 km

raceindex.org mapped route held

Garstang 10K: Held
Wilmslow Half Marathon 10K: Held

raceindex.org elevation profile held

Garstang 10K: Held
Wilmslow Half Marathon 10K: Held

Course type

Garstang 10K: Loop
Wilmslow Half Marathon 10K: Unavailable

Surface

Garstang 10K: Road
Wilmslow Half Marathon 10K: Road

Elevation character

Garstang 10K: Rolling
Wilmslow Half Marathon 10K: Unavailable

Terrain

Garstang 10K: Road
Wilmslow Half Marathon 10K: Road

Scenery

Garstang 10K: Countryside
Wilmslow Half Marathon 10K: Countryside

Atmosphere

Garstang 10K: Community
Wilmslow Half Marathon 10K: Community, Competitive, Charity

Technicality

Garstang 10K: Non Technical
Wilmslow Half Marathon 10K: Unavailable

Total ascent

Garstang 10K: 80 m
Wilmslow Half Marathon 10K: 40 m

Climbing density

Garstang 10K: 8.0 m/km
Wilmslow Half Marathon 10K: 4.0 m/km

Total descent

Garstang 10K: 81 m
Wilmslow Half Marathon 10K: 43 m

Net elevation

Garstang 10K: -1 m
Wilmslow Half Marathon 10K: -3 m

Max absolute grade

Garstang 10K: 5.8%
Wilmslow Half Marathon 10K: 3.4%

Flat grade share

Garstang 10K: 65.3%
Wilmslow Half Marathon 10K: 91.1%

GAP factor

Garstang 10K: 0.5%
Wilmslow Half Marathon 10K: 0.0%

Cutoff

Garstang 10K: Unavailable
Wilmslow Half Marathon 10K: 1:45:00

Entry model

Garstang 10K: Open
Wilmslow Half Marathon 10K: Open

Entry fee

Garstang 10K: £25
Wilmslow Half Marathon 10K: Unavailable

Lowest modelled true cost

Garstang 10K: £155
Wilmslow Half Marathon 10K: Unavailable

Cost model origin

Garstang 10K: National Average
Wilmslow Half Marathon 10K: Unavailable

Measured course

Garstang 10K: Yes
Wilmslow 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.

Common questions

Which is flatter, Garstang 10K or Wilmslow Half Marathon 10K?

Wilmslow Half Marathon 10K has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.

Read the full pages

How figures are calculated →

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of 2026-07-06.

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (4)

Layer E archive-api.open-meteo.com
Layer A lancaster-race-series.co.uk · source blocked automated checking on 2026-09-19
Layer B src_derived
Layer A wilmslowrunningfestival.org.uk · verified 2026-07-30

Read the full methodology →

Garstang 10K or Wilmslow Half Marathon 10K — which comes out ahead?

Route comparison snapshot

Garstang 10K

Wilmslow Half Marathon 10K

Flat grade share

GAP factor (% slower than flat)

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)

Value

Scenic score

Conditions

Entry fee (GBP)

Lowest modelled true cost (GBP)

Race facts that change the decision

Schedule

Location

Actual distance

raceindex.org mapped route held

raceindex.org elevation profile held

Course type

Surface

Elevation character

Terrain

Scenery

Atmosphere

Technicality

Total ascent

Climbing density

Total descent

Net elevation

Max absolute grade

Flat grade share

GAP factor

Cutoff

Entry model

Entry fee

Lowest modelled true cost

Cost model origin

Measured course

Common questions

Which is flatter, Garstang 10K or Wilmslow Half Marathon 10K?

Read the full pages

Garstang 10K

Wilmslow Half Marathon 10K

How we calculated this