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About RaceIndexOur methodologyData coverageCyclingTriathlon

Garmin New Forest Marathon

  • Brockenhurst
  • South East
  • Rural
Data current as of

Official event website ↗

Same event — which distance suits you?

DistanceAscentClimb densityDescentNet elevationMax absolute gradeGAP factorFee
Marathon246 m5.8 m/km247 m-1 m5.5%0.3%£69
Half Marathon122 m5.8 m/km122 m0 m5.1%0.3%£54
10K40 m4.0 m/km41 m-2 m6.3%0.2%£43
5K31 m6.3 m/km33 m-1 m6.1%0.3%£26

Marathon

Ascent
246 m
Climb density
5.8 m/km
Descent
247 m
Net elevation
-1 m
Max absolute grade
5.5%
GAP factor
0.3%
Fee
£69

Half Marathon

Ascent
122 m
Climb density
5.8 m/km
Descent
122 m
Net elevation
0 m
Max absolute grade
5.1%
GAP factor
0.3%
Fee
£54

10K

Ascent
40 m
Climb density
4.0 m/km
Descent
41 m
Net elevation
-2 m
Max absolute grade
6.3%
GAP factor
0.2%
Fee
£43

5K

Ascent
31 m
Climb density
6.3 m/km
Descent
33 m
Net elevation
-1 m
Max absolute grade
6.1%
GAP factor
0.3%
Fee
£26

GAP is modelled energy-cost change versus flat, not a time penalty. Unavailable cells mean no sourced value is available yet. Click a distance for its full page.

Compare distances at this event

Same-event questions

What distances does Garmin New Forest Marathon offer?

Garmin New Forest Marathon offers Marathon, Half Marathon, 10K, 5K, all run from the same event.

Typical conditions on race weekend

  • 16°CTypical temperature
  • 23 kphTypical wind
  • 2 mmTypical rainfall
  • 67Favourability /100
Typical conditions for the race date and locality, warmer than the endurance-optimal window. These are climatological norms, not a forecast, and are shared across every distance at this event.

Explore each distance

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 .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (3)

Read the full methodology →

Source-backed sections

available route profile, entry fees, cost estimates, race-day conditions, and source facts are shown on this event page. Sections appear only when their source-backed data is available.