North Fork 50 Ultras

Sat, May 30, 2026
United States
Colorado
300–1,000
www.aravaiparunning.com/north-fork-ultras
Trail
50 Mile
50K
USA

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Trail in United States, Colorado

Distances

Trail
50 Mile
80.5 km
Start: May 31, 02:00 AM
Early bird: 170.00 EUR
Trail
50K
80.5 km
Start: May 31, 03:00 AM
Early bird: 150.00 EUR

About

A 100% off-trail ultra in the Colorado mountains southwest of Denver featuring world-class singletrack, spectacular granite rock formations, and big elevation. The event supports the North Fork Volunteer Fire Department and retains a small, athlete-focused feel.

Catering & aid stations

On-course hydration and food at every aid station; hot meals and coffee at the finish festival.

Pacers

Pacers set target times per Startwave on the race day schedule (50 Mile start 6:00, 50K start 7:00). Pacers will be present to help runners stay on pace; details and flaggen at the "Renntag für Laufende" page.

Results

View official results

Typical weather in Colorado

Monthly averages based on historical data (2000–present).

Jan58°35°

↑ 07:46

↓ 18:01

Feb62°38°

↑ 07:28

↓ 18:30

Mar72°48°

↑ 07:54

↓ 19:52

Apr80°56°

↑ 07:15

↓ 20:14

May87°64°

↑ 06:46

↓ 20:36

Jun93°72°

↑ 06:37

↓ 20:53

Jul95°75°

↑ 06:48

↓ 20:52

Aug95°75°

↑ 07:09

↓ 20:29

Sep87°67°

↑ 07:29

↓ 19:51

Oct78°57°

↑ 07:48

↓ 19:12

Nov67°46°

↑ 07:14

↓ 17:44

Dec60°38°

↑ 07:39

↓ 17:41

Weather data by Open-Meteo

What's included in entry

Race entry for your selected distance
Aid stations with hydration and food

Finish line food truck meal and event celebration
Course map access

Prices & signup

50 Mile170.00 EUR
50K150.00 EUR

FAQ

Can I register after May 8th?

Yes, registration remains open but race shirts are not guaranteed after May 8th and prices increase at each tier.

What is the course like?

100% soft surface singletrack with a loop course through forest, burn areas, and striking granite formations; about 3,800 ft of elevation gain for the 50M.