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About RaceIndexOur methodologyData coverageCyclingTriathlon

Maine Marathon (Portland)

  • Portland
  • Maine
  • Coastal
Data current as of

Official event website & entry ↗

Same event — which distance suits you?

DistanceAscentClimb densityDescentNet elevationMax absolute gradeGAP factor
Marathon357 m8.5 m/km358 m0 m15.5%0.9%
Relay357 m8.5 m/km358 m0 m15.5%0.9%
Half Marathon133 m6.3 m/km133 m0 m9.8%0.6%

Marathon

Ascent
357 m
Climb density
8.5 m/km
Descent
358 m
Net elevation
0 m
Max absolute grade
15.5%
GAP factor
0.9%

Relay

Ascent
357 m
Climb density
8.5 m/km
Descent
358 m
Net elevation
0 m
Max absolute grade
15.5%
GAP factor
0.9%

Half Marathon

Ascent
133 m
Climb density
6.3 m/km
Descent
133 m
Net elevation
0 m
Max absolute grade
9.8%
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 Maine Marathon (Portland) offer?

Maine Marathon (Portland) offers Marathon, Relay, Half Marathon, all run from the same event.

Typical conditions on race weekend

  • 14°CTypical temperature
  • 14 kphTypical wind
  • 3 mmTypical rainfall
  • 84Favourability /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 (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.