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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Half Marathon
  • 21.1 km
  • Georgetown
  • Event weekend starts
  • Past event

Georgetown to Idaho Springs 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.

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

Decision summary

Georgetown to Idaho Springs Half Marathon at a glance

Cut-off average pace
14:13/km

5:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.

Typical conditions
18/100

Historical race-date favourability, not a forecast

Evidence depth
37 verified facts

Stored GPS route

Quick answers

What runners ask first

Georgetown to Idaho Springs Half Marathon route map

raceindex.org has a GPS course file for Georgetown to Idaho Springs 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 Georgetown to Idaho Springs Half Marathon?

The Georgetown to Idaho Springs Half Marathon is described as net downhill.

Where does the Georgetown to Idaho Springs Half Marathon route go?

The Georgetown to Idaho Springs Half Marathon route starts at Georgetown Lake, Georgetown, CO (elevation ~8,500 ft) and finishes at Idaho Springs, CO (elevation ~7,500 ft). Underfoot, expect mixed: approximately 25% gravel/dirt path, remainder pavement and cement. It passes Georgetown Lake, Clear Creek, Clear Creek Valley, Bridal Falls and Idaho Springs. a scenic, gently rolling downhill mountain course winding down the Clear Creek Valley.

What should runners know on race day for the Georgetown to Idaho Springs Half Marathon?

Water stations at miles 3, 6, 10, 12 and the finish; electrolytes at station 8. 6.

Race character

Scenery

  • Mountain
  • Countryside
  • Waterfront
  • Riverside
  • Lakeside
Elevation character
Net Downhill
Technicality
Non Technical
Net elevation
-305 m

Entry, logistics and records

Entry requirements

Entry status
Past event: The listed edition date has passed.
Cut-off
Course closes at 12:00pm (noon); start line closes promptly at 8:45am
Qualification status
No qualifying standard; open registration via Race Roster. Net downhill course and not USATF Certified for 2026.

Race day logistics

Aid stations
Water stations at miles 3, 6, 10, 12 and the finish; electrolytes at station 8
Expo / packet pickup
Packet pickup at Runners Roost Lakewood (7978 W Alameda Ave, Lakewood, CO) Aug 1-2 and Aug 6, plus race-morning pickup at the start
Medal
Finisher medals available to all participants at the finish line
Finisher tee
Gender-specific short sleeve t-shirt included with registration, designed by a Clear Creek High School or Middle School student

Access and course status

Start
Georgetown Lake, Georgetown, CO (elevation ~8,500 ft)
Finish
Idaho Springs, CO (elevation ~7,500 ft)

Course facts

Course type
Point To Point
Surface
Mixed: approximately 25% gravel/dirt path, remainder pavement and cement
Landmarks
Georgetown Lake, Clear Creek, Clear Creek Valley, Bridal Falls, Idaho Springs
Notable features
  • Part of the Colorado Mountain Half Marathon Series
  • a scenic, gently rolling downhill mountain course winding down the Clear Creek Valley
  • Course winds down the Clear Creek Valley alongside Clear Creek
  • mostly exposed to sun
  • recently redesigned for municipal safety
  • not USATF-certified for 2026

What are typical race-day conditions?

  • 27°CTypical temperature
  • 14 kphTypical wind
  • 8 mmTypical rainfall
  • 18Favourability /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.

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 →