RunRace USA › Colorado › Colleen De Reuck XC Classic
Colleen De Reuck XC Classic
Boulder, Colorado · Saturday, October 31, 2026 · 5K, 3K, 1K
Official race page & registration ↗Colleen De Reuck XC Classic takes place on Saturday, October 31, 2026 in Boulder, Colorado. The race offers 3 distances: 5K, 3K, 1K. For anyone travelling in, Louisville is about 6 miles away and Lakewood is about 21 miles away.
It is one of 111 races on the Colorado calendar that October. At $15, entry sits below the $29 median for a Colorado 5K.
- Date
- Saturday, October 31, 2026
- Location
- Boulder, Colorado
- Distances
- 5K, 3K, 1K
- Entry fee
- from $15
Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.
Making a race weekend of it?
Stay near the start line in Boulder: check in Oct 30, out Nov 1.
Common questions
When is Colleen De Reuck XC Classic?
Colleen De Reuck XC Classic is scheduled for Saturday, October 31, 2026.
Where is Colleen De Reuck XC Classic held?
Colleen De Reuck XC Classic is held in Boulder, Colorado. It is about 6 miles from Louisville and 21 miles from Lakewood.
What distances does Colleen De Reuck XC Classic offer?
The listed distances are 5K, 3K, 1K.
How much does Colleen De Reuck XC Classic cost?
Entry is listed from $15. Check the official race page for the current price, which usually rises closer to race day.
How do I register for Colleen De Reuck XC Classic?
Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.
More races nearby
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- Oct 31Halloween 5K Fundraiser!Grand Junction, CO
- Oct 31Halloween Fun 5kSteamboat Springs, CO
See every race on the Colorado calendar, Colorado 5Ks, or use the Race Finder for maps and filters.