Colleen De Reuck XC Classic - 3K XC - 16 Years & Under
Also in this race
These events were grouped as one card in discovery—pick another distance or date without going back.
External Event
Distance
1.9 mi
Pace
All paces
Terrain
Road
Difficulty
All Levels
About this run
The Colleen De Reuck Cross Country Classic is a XC meet honoring one of the world's greatest ever distance athletes and Boulder local, Colleen De Reuck. Each year, we celebrate Colleen’s career and her devotion to the sport of running, while promoting health and fitness, and also acknowledging a different Boulder Olympian every year. The Colleen De Reuck Cross Country Classic is Race 2 of the Boulder XC series, taking place on Saturday October 31st. It will host a series of XC races for runners of all ages and abilities. RACE 2 Harlow Platts Community Park 1400 Knox Dr. South Boulder, 80305 TIME 9:00AM - 10:30AM COST - (This will help cover venue hire, electronic timing, portable toilets and insurance) Mountain Lions Participants - FREE 12 YEARS & UNDER - $15.00 13 - 19 YEARS - $20.00 20 YEARS & OLDER - $25.00 SCHEDULE 9:00AM 10 YEARS & UNDER - 1K 9:15AM 16 YEARS & UNDER - 3K 9:45AM OPEN - 5K
Typical conditions
For events around October 2026 in Boulder, CO, United States: Typical autumn conditions in this region — conditions can change quickly; confirm race-day guidance on the official page.
How to prepare
Most runners can prepare for a 5K with a few weeks of easy runs and one short faster session per week. Focus on consistency, not volume, and rest the day before race day.
Beginner's guide to your first 5KGetting there
This event is listed in Boulder, CO, United States. Confirm the exact start venue, parking, and transit options on the official registration page.
Registration is handled by the official event organizer
Know a local group? Host a community run in Boulder
Also in this race
- Oct 31, 2026 · 2:00 PM
- Oct 31, 2026 · 2:15 PM (this one)
- Oct 31, 2026 · 2:45 PM

