10K Races in Denver, CO
Find running events near Denver, Colorado. RACE tracks 32+ events in the area with real-time registration status, pricing, and course information. Lock in your next running start line.
Running
City Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research)
November 7, 2026
Denver, CO
Running
National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA
September 12, 2026
Centennial, CO
Frequently Asked Questions
How do I find running races in Denver?▾
Use RACE to browse all upcoming running events in Denver, CO. Filter by distance (5K, 10K, half marathon, marathon) and date to find the perfect race for your schedule.
What are the most popular race distances in Denver?▾
Denver hosts races at every distance, from 1-mile fun runs to full marathons. 5K and half marathon events are the most common, followed by 10Ks and marathons.
When is the best time to race in Denver, CO?▾
Race season varies by region. Check the calendar on RACE to see Denver's busiest months — spring and fall are typically peak season for road races in Colorado.
Are there beginner-friendly races in Denver?▾
Yes. Many 5K events in Denver welcome first-time runners with open waves, no time cutoffs, and walk-friendly policies. Start with a local 5K and build from there.