nednedtrailfest.com

NEDNED Trail Fest

Nederland, Colorado, United States

calendar_today 12 Sep, 2026

directions_bike Cycling

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 — Cycling

timer

08:00

Magnolia Backcountry MTB

Sep 13, 2025

straighten

Distance — 10K

terrain

Type — Cycling

timer

08:30

10K

Sep 13, 2025

straighten

Distance — 10K

terrain

Type — Cycling

timer

09:15

5K

Sep 13, 2025

straighten

Distance — 5K

terrain

Type — Cycling

timer

09:30

Weather History

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

thermostat Temperature

5.6° / 19.1°

wb_sunny Feels like

1.8° / 15.8°

light_mode Avg sunshine hours

11h 7m

water_drop Avg rainfall

2.4 mm

ac_unit Avg snowfall

0.1 cm

air Avg wind speed

9.1 km/h (Light breeze)

opacity Sweat loss rate

Low

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (5.0)

humidity_mid Humidity

56.3%

wb_twilight Sunrise

06:43

nightlight Sunset

19:09

Runner Reviews

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NEDNED Trail Fest

About the Event