nednedtrailfest.com

NEDNED Trail Fest

Name: NEDNED Trail Fest
Start: 2026-09-12
End: 2026-09-12
Location: Nederland, Colorado

location_city Nederland

location_on Colorado

flag United States

calendar_today 12 Sep, 2026

directions_bike Cycling

language Official Website

About the Event

Celebrate a 44-year Colorado trail running tradition at the NedNed Run in the historic mountain town of Nederland on Saturday, 12 September 2026. This beloved community event offers three scenic routes to suit every runner: tackle the challenging and beautiful Trail Half Marathon (Colorado's longest-running trail half), push your pace on the Trail 10K, or enjoy the family-friendly 5K Road Run where leashed dogs and costumes are welcome. Starting in the heart of Old Town Nederland, the courses wind through classic Colorado scenery on a mix of dirt roads and singletrack trails, offering stunning mountain views. With its friendly, inclusive atmosphere and deep local roots, the NedNed Run is more than a race—it's a festive gathering supporting the Peak to Peak Endurance Foundation. Lace up your shoes for a true taste of mountain running heritage and community spirit in the Front Range.

Races Offered

Half Marathon

Sep 13, 2025

straighten

Distance — 21K

terrain

Type — Mountain biking

timer

08:00

Magnolia Backcountry MTB

Sep 13, 2025

straighten

Distance — 10K

terrain

Type — Mountain biking

timer

08:30

10K

Sep 13, 2025

straighten

Distance — 10K

terrain

Type — Mountain biking

timer

09:15

5K

Sep 13, 2025

straighten

Distance — 5K

terrain

Type — Mountain biking

timer

09:30

Weather Overview

These values represent the 3-year monthly averages for September in Nederland.

Temp (°C)

Feels Like (°C)

thermostat 6.5° / 19.9°

wb_sunny 2.6° / 16.6°

Wind (km/h)

Humidity (%)

air 9.5 /

water_drop 53.8%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 6.5° / 19.9°

wb_sunny 2.6° / 16.6°

air 9.5 km/h

water_drop 53.8%

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location_on Boulder, Colorado, US

calendar_today Sep 13, 2026

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Byers Peak Stampede Half Marathon & 5K Run

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calendar_today Aug 22, 2026

Other 5K Half-Marathon

Erie Half & 5k

location_on Erie, Colorado, US

calendar_today Aug 16, 2026

5K Half-Marathon

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NEDNED Trail Fest

About the Event