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About RaceIndexOur methodologyData coverageCyclingTriathlon

Idaho Falls Marathon

  • Idaho Falls
  • Idaho
  • Mixed
Data current as of

Official event website ↗

Same event — which distance suits you?

DistanceAscentClimb densityDescentNet elevationMax absolute gradeGAP factor
Marathon69 m1.6 m/km52 m15 m10.9%0.3%
Half Marathon50 m2.4 m/km52 m-3 m9.1%0.1%
5K19 m3.8 m/km19 m0 m6.0%0.3%

Marathon

Ascent
69 m
Climb density
1.6 m/km
Descent
52 m
Net elevation
15 m
Max absolute grade
10.9%
GAP factor
0.3%

Half Marathon

Ascent
50 m
Climb density
2.4 m/km
Descent
52 m
Net elevation
-3 m
Max absolute grade
9.1%
GAP factor
0.1%

5K

Ascent
19 m
Climb density
3.8 m/km
Descent
19 m
Net elevation
0 m
Max absolute grade
6.0%
GAP factor
0.3%

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 Idaho Falls Marathon offer?

Idaho Falls Marathon offers Marathon, Half Marathon, 5K, all run from the same event.

Typical conditions on race weekend

  • 25°CTypical temperature
  • 18 kphTypical wind
  • 0 mmTypical rainfall
  • 43Favourability /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, race-day conditions, and source facts are shown on this event page. Sections appear only when their source-backed data is available.