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About RaceIndexOur methodologyData coverageCyclingTriathlon

Cedar Rapids Marathon

  • Cedar Rapids
  • Iowa
  • City
Data current as of

Official event website & entry ↗

Same event — which distance suits you?

DistanceAscentClimb densityDescentNet elevationMax absolute gradeGAP factor
Marathon454 m10.8 m/km455 m-1 m15.8%1.4%
Relay454 m10.8 m/km455 m-1 m15.8%1.4%
Half Marathon229 m10.9 m/km232 m-2 m13.9%1.4%
10K85 m8.5 m/km86 m-0 m13.8%1.1%
5K31 m6.2 m/km32 m-0 m13.8%0.6%

Marathon

Ascent
454 m
Climb density
10.8 m/km
Descent
455 m
Net elevation
-1 m
Max absolute grade
15.8%
GAP factor
1.4%

Relay

Ascent
454 m
Climb density
10.8 m/km
Descent
455 m
Net elevation
-1 m
Max absolute grade
15.8%
GAP factor
1.4%

Half Marathon

Ascent
229 m
Climb density
10.9 m/km
Descent
232 m
Net elevation
-2 m
Max absolute grade
13.9%
GAP factor
1.4%

10K

Ascent
85 m
Climb density
8.5 m/km
Descent
86 m
Net elevation
-0 m
Max absolute grade
13.8%
GAP factor
1.1%

5K

Ascent
31 m
Climb density
6.2 m/km
Descent
32 m
Net elevation
-0 m
Max absolute grade
13.8%
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 Cedar Rapids Marathon offer?

Cedar Rapids Marathon offers Marathon, Relay, Half Marathon, 10K, 5K, all run from the same event.

Typical conditions on race weekend

  • 11°CTypical temperature
  • 25 kphTypical wind
  • 3 mmTypical rainfall
  • 75Favourability /100
Typical conditions for the race date and locality, within 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.