Colleen De Reuck XC Classic

The Colleen De Reuck XC Classic is a cross country running event held annually at Harlow Platts Community Park in Boulder, Colorado. Honoring renowned distance runner Colleen De Reuck, the race promotes health, fitness, and celebrates local Olympians, with 2025 honoring 2012 Olympic marathoner Yoshimi Ozaki. The event features multiple race distances catering to all ages and abilities: a 1K for children 10 and under, a 3K for youth 16 and under, and a 5K open race for participants aged 14 and older.

The meet is part of the Boulder XC series and offers a welcoming atmosphere for runners of all levels. Visit the organization's website for the most recent information.