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About RaceIndexOur methodologyData coverageCyclingTriathlon

Naptown Half Marathon & 10K/5K

  • Annapolis
  • Maryland
  • City
Data current as of

Official event website & entry ↗

Same event — which distance suits you?

DistanceAscentClimb densityDescentNet elevationMax absolute gradeGAP factor
Half Marathon208 m9.8 m/km208 m0 m11.1%0.9%
10K63 m6.3 m/km63 m-0 m9.3%0.5%
5K35 m6.9 m/km34 m0 m9.7%0.6%

Half Marathon

Ascent
208 m
Climb density
9.8 m/km
Descent
208 m
Net elevation
0 m
Max absolute grade
11.1%
GAP factor
0.9%

10K

Ascent
63 m
Climb density
6.3 m/km
Descent
63 m
Net elevation
-0 m
Max absolute grade
9.3%
GAP factor
0.5%

5K

Ascent
35 m
Climb density
6.9 m/km
Descent
34 m
Net elevation
0 m
Max absolute grade
9.7%
GAP factor
0.6%

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 Naptown Half Marathon & 10K/5K offer?

Naptown Half Marathon & 10K/5K offers Half Marathon, 10K, 5K, all run from the same event.

Typical conditions on race weekend

  • 4°CTypical temperature
  • 18 kphTypical wind
  • 4 mmTypical rainfall
  • 76Favourability /100
Typical conditions for the race date and locality, cooler 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 (2)

Read the full methodology →

Source-backed sections

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