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About RaceIndexOur methodologyData coverageCyclingTriathlon

Jack & Jill's Downhill Marathon & Half

  • Hyak (Snoqualmie Pass) to North Bend
  • Washington
  • Rural
Data current as of

Official event website ↗

Same event — which distance suits you?

DistanceAscentClimb densityDescentNet elevationMax absolute gradeGAP factor
Marathon783 m18.5 m/km1,051 m-268 m31.0%1.5%
Half Marathon311 m14.7 m/km574 m-264 m31.2%-1.5%

Marathon

Ascent
783 m
Climb density
18.5 m/km
Descent
1,051 m
Net elevation
-268 m
Max absolute grade
31.0%
GAP factor
1.5%

Half Marathon

Ascent
311 m
Climb density
14.7 m/km
Descent
574 m
Net elevation
-264 m
Max absolute grade
31.2%
GAP factor
-1.5%

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.

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Same-event questions

What distances does Jack & Jill's Downhill Marathon & Half offer?

Jack & Jill's Downhill Marathon & Half offers Marathon, Half Marathon, all run from the same event.

Typical conditions on race weekend

  • 18°CTypical temperature
  • 14 kphTypical wind
  • 1 mmTypical rainfall
  • 75Favourability /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.

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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.