Endurancelife Suffolk (Dunwich) 10K vs ATW Bedford 10k & Half Marathon

Name: Endurancelife Suffolk (Dunwich) 10K vs ATW Bedford 10k & Half Marathon comparison data
Creator: raceindex.org

Endurancelife Suffolk (Dunwich) 10K or ATW Bedford 10k & Half Marathon — which comes out ahead?

ATW Bedford 10k & Half Marathon has the stronger available profile on flat grade share, course flatness and conditions.

Route comparison snapshot

Endurancelife Suffolk (Dunwich) 10K

Mapped route: Held
Elevation profile: Held
course flatness: 0.7%
flat grade share: 62.6%
lower ascent: 88 m
climbing density: 9.0 m/km
net elevation: -1 m
maximum grade: 9.1%

ATW Bedford 10k & Half Marathon

Mapped route: Held
Elevation profile: Held
course flatness: 0.1% Favoured
flat grade share: 99.6% Favoured
lower ascent: 8 m
climbing density: 0.8 m/km
net elevation: 0 m
maximum grade: 2.7%

Head-to-head comparison
Metric	Endurancelife Suffolk (Dunwich) 10K	ATW Bedford 10k & Half Marathon
Flat grade share	62.6%	99.6% ✓
GAP factor (% slower than flat)	0.7%	0.1% ✓
Uphill share	18.3%	0.4%
Steep-up share	0.1%	0.0%
Downhill share	19.1%	0.0%
Total ascent (m)	88 m	8 m
Climbing density (m/km)	9.0 m/km	0.8 m/km
Longest climb length (m)	460 m	300 m
Longest climb gain (m)	15 m	3 m
Longest climb average grade	3.2%	0.9%
Total descent (m)	89 m	7 m
Net elevation (m)	-1 m	0 m
Max absolute grade	9.1%	2.7%
Start elevation (m)	19 m	26 m
Finish elevation (m)	18 m	26 m
Value	84/100	Unavailable
Scenic score	100/100 ✓	68/100
Conditions	72/100	82/100 ✓
Entry fee (GBP)	£35	Unavailable
Lowest modelled true cost (GBP)	£165	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	Endurancelife Suffolk (Dunwich) 10K	ATW Bedford 10k & Half Marathon
Schedule	Exact race date not confirmed. Event weekend starts 2026-10-10 (legacy event-level date).	Exact race date not confirmed. Event weekend starts 2026-11-01 (legacy event-level date).
Location	Dunwich, East Of England	Bedford, East Of England
Actual distance	9.8 km	10 km
raceindex.org mapped route held	Held	Held
raceindex.org elevation profile held	Held	Held
Course type	Loop	Loop
Surface	Forest, moorland, grass and beach terrain, rated moderate in difficulty.	Whole route is on traffic Free tarmac or firm paths
Elevation character	Unavailable	Pancake Flat
Terrain	Trail	Unavailable
Scenery	Coastal, Parkland, Historic, Forest, Moorland, Countryside	Riverside, Parkland, Lakeside, City
Atmosphere	Community, Scenic Tour	Community, Charity
Total ascent	88 m	8 m
Climbing density	9.0 m/km	0.8 m/km
Total descent	89 m	7 m
Net elevation	-1 m	0 m
Max absolute grade	9.1%	2.7%
Flat grade share	62.6%	99.6%
GAP factor	0.7%	0.1%
Entry model	Open	Open
Entry fee	£35	Unavailable
Lowest modelled true cost	£165	Unavailable
Cost model origin	National Average	Unavailable
Measured course	No	Yes

Schedule

Endurancelife Suffolk (Dunwich) 10K: Exact race date not confirmed. Event weekend starts 2026-10-10 (legacy event-level date).
ATW Bedford 10k & Half Marathon: Exact race date not confirmed. Event weekend starts 2026-11-01 (legacy event-level date).

Location

Endurancelife Suffolk (Dunwich) 10K: Dunwich, East Of England
ATW Bedford 10k & Half Marathon: Bedford, East Of England

Actual distance

Endurancelife Suffolk (Dunwich) 10K: 9.8 km
ATW Bedford 10k & Half Marathon: 10 km

raceindex.org mapped route held

Endurancelife Suffolk (Dunwich) 10K: Held
ATW Bedford 10k & Half Marathon: Held

raceindex.org elevation profile held

Endurancelife Suffolk (Dunwich) 10K: Held
ATW Bedford 10k & Half Marathon: Held

Course type

Endurancelife Suffolk (Dunwich) 10K: Loop
ATW Bedford 10k & Half Marathon: Loop

Surface

Endurancelife Suffolk (Dunwich) 10K: Forest, moorland, grass and beach terrain, rated moderate in difficulty.
ATW Bedford 10k & Half Marathon: Whole route is on traffic Free tarmac or firm paths

Elevation character

Endurancelife Suffolk (Dunwich) 10K: Unavailable
ATW Bedford 10k & Half Marathon: Pancake Flat

Terrain

Endurancelife Suffolk (Dunwich) 10K: Trail
ATW Bedford 10k & Half Marathon: Unavailable

Scenery

Endurancelife Suffolk (Dunwich) 10K: Coastal, Parkland, Historic, Forest, Moorland, Countryside
ATW Bedford 10k & Half Marathon: Riverside, Parkland, Lakeside, City

Atmosphere

Endurancelife Suffolk (Dunwich) 10K: Community, Scenic Tour
ATW Bedford 10k & Half Marathon: Community, Charity

Total ascent

Endurancelife Suffolk (Dunwich) 10K: 88 m
ATW Bedford 10k & Half Marathon: 8 m

Climbing density

Endurancelife Suffolk (Dunwich) 10K: 9.0 m/km
ATW Bedford 10k & Half Marathon: 0.8 m/km

Total descent

Endurancelife Suffolk (Dunwich) 10K: 89 m
ATW Bedford 10k & Half Marathon: 7 m

Net elevation

Endurancelife Suffolk (Dunwich) 10K: -1 m
ATW Bedford 10k & Half Marathon: 0 m

Max absolute grade

Endurancelife Suffolk (Dunwich) 10K: 9.1%
ATW Bedford 10k & Half Marathon: 2.7%

Flat grade share

Endurancelife Suffolk (Dunwich) 10K: 62.6%
ATW Bedford 10k & Half Marathon: 99.6%

GAP factor

Endurancelife Suffolk (Dunwich) 10K: 0.7%
ATW Bedford 10k & Half Marathon: 0.1%

Entry model

Endurancelife Suffolk (Dunwich) 10K: Open
ATW Bedford 10k & Half Marathon: Open

Entry fee

Endurancelife Suffolk (Dunwich) 10K: £35
ATW Bedford 10k & Half Marathon: Unavailable

Lowest modelled true cost

Endurancelife Suffolk (Dunwich) 10K: £165
ATW Bedford 10k & Half Marathon: Unavailable

Cost model origin

Endurancelife Suffolk (Dunwich) 10K: National Average
ATW Bedford 10k & Half Marathon: Unavailable

Measured course

Endurancelife Suffolk (Dunwich) 10K: No
ATW Bedford 10k & Half Marathon: 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, Endurancelife Suffolk (Dunwich) 10K or ATW Bedford 10k & Half Marathon?

ATW Bedford 10k & Half Marathon 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 2026-07-18.

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (4)

Layer E archive-api.open-meteo.com
Layer A endurancelife.com · last check inconclusive on 2026-09-17
Layer B src_derived
Layer A atwevents.co.uk · last check inconclusive on 2026-09-10

Read the full methodology →

Endurancelife Suffolk (Dunwich) 10K or ATW Bedford 10k & Half Marathon — which comes out ahead?

Route comparison snapshot

Endurancelife Suffolk (Dunwich) 10K

ATW Bedford 10k & Half Marathon

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

Total ascent

Climbing density

Total descent

Net elevation

Max absolute grade

Flat grade share

GAP factor

Entry model

Entry fee

Lowest modelled true cost

Cost model origin

Measured course

Common questions

Which is flatter, Endurancelife Suffolk (Dunwich) 10K or ATW Bedford 10k & Half Marathon?

Read the full pages