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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Half Marathon
  • 21.1 km
  • Estes Park
  • Event dates –
  • Past event

Estes Park Marathon and Half Marathon

This race edition

Race date
Date not confirmed for this distance
Race timezone
Timezone not confirmed
Edition status
Status not confirmed

Entry options

2026 edition

Entry options are not yet confirmed for this edition. Check the organiser before making plans.

Modelled energy-cost change -9.9% versus flat · net elevation -477 m

View verified GPS mapOfficial event website ↗
Plan my trainingPlan my paceData current as of Source last verified

Decision summary

Estes Park Marathon and Half Marathon at a glance

Route ascent
61 m

Lower than 91% of comparable mapped races

Typical conditions
77/100

Historical race-date favourability, not a forecast

Evidence depth
27 verified facts

Stored GPS route

Quick answers

What runners ask first

Estes Park Marathon and Half Marathon route map

raceindex.org has a GPS course file for Estes Park Marathon and Half Marathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.

How hilly is the Estes Park Marathon and Half Marathon?

The Estes Park Marathon and Half Marathon route has 61 m of ascent, 539 m of descent and an estimated -9.9% grade-adjusted pace penalty versus a flat route.

Where does the Estes Park Marathon and Half Marathon route go?

Underfoot, expect a mixed course. The setting includes mountain and forest. these do not map to a standard road distance category.

Race character

Scenery

  • Mountain
  • Forest
  • Lakeside
  • Parkland
  • Waterfront

Atmosphere

  • Scenic Tour
  • Destination

Terrain

  • Mixed
  • Trail
  • Road
Elevation character
Net Downhill
Technicality
Moderate

Entry, logistics and records

Entry requirements

Entry status
Past event: The listed edition date has passed.
Cut-off
Walkers start at 5:00 AM; runners use a rolling start from 5:30-7:00 AM. The organiser does not currently state a half-marathon finish cutoff.

Race day logistics

Medal
Finisher medal awarded to all who cross the finish line.
Finisher tee
Official performance shirt provided to participants.

Course facts

Notable features
  • Rated by Forbes Magazine as one of the Top 7 Most Scenic half marathons in the USA
  • Race weekend spans two days: the Longs Peak 5 Miler (5 miles) and Kids Fun Run on Saturday June 20, with the Marathon and Half Marathon on Sunday June 21, 2026
  • Shining Twin Challenge: run both the Longs Peak 5 Miler and the Half Marathon on consecutive days for discounted pricing and special recognition
  • Free shuttle transportation provided to the Dao House start line
  • aid stations frequently stocked roughly every 2 miles
  • Additional weekend distances on the official site include the Longs Peak 5 Miler (5 miles, June 20, 8:00 AM start) and a Kids Fun Run
  • these do not map to a standard road distance category

How hilly is the Estes Park Marathon and Half Marathon?

12%30%54%
  • Steep descent 12%
  • Descent 30%
  • Flat 54%
  • Climb 5%
  • Steep climb 0%
Total ascent
61 m
Net elevation
−477 m
GAP factor
-9.9%
Longest climb
870 m at 1.9%
Gradient mix and ascent are derived from the course geometry under our published normalisation, not taken from organiser marketing.

What are typical race-day conditions?

  • 15°CTypical temperature
  • 16 kphTypical wind
  • 3 mmTypical rainfall
  • 77Favourability /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.

More race details

Is the Estes Park Marathon and Half Marathon flat?

Its normalised GAP factor is -9.9% slower than a flat course, with about 61 m of total ascent.

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 →

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