Events Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA Centennial, CO Sloth Run 5K/10K/13.1 DENVER/AURORA Centennial, CO Oktoberfest Run 5K/10K/13.1 DENVER/AURORA Centennial, CO Event Series Ironman Triathlon Rock 'n' Roll Marathon Spartan Race Hot Chocolate Run Ragnar Relay
Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA Centennial, CO Sloth Run 5K/10K/13.1 DENVER/AURORA Centennial, CO Oktoberfest Run 5K/10K/13.1 DENVER/AURORA Centennial, CO
September 2026 National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA Centennial, CO Sat - Sep 12, 2026 Running > 5k, 10k, Half Marathon, 1 mile The Denver 5k Denver, CO Sat - Sep 12, 2026 @ 9:00 AM Running > 5k Oktoberfest Run 5K/10K/13.1 DENVER/AURORA Centennial, CO Sat - Sep 26, 2026 Running > 5k, 10k, Half Marathon, 1 mile October 2026 Westy Half & 5k Westminster, CO Sun - Oct 11, 2026 @ 8:00 AM Running > 5k, Half Marathon The Great Trailhead Footrace Lakewood, CO Sat - Oct 17, 2026 @ 9:00 AM Running > 10 Mile, 5 mile I Ain't Scared (of 5k) Thornton, CO Sat - Oct 31, 2026 Running > 5k « ‹ 1 2 Add your event to the calendar Trending Events Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA Sloth Run 5K/10K/13.1 DENVER/AURORA Oktoberfest Run 5K/10K/13.1 DENVER/AURORA
National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA Centennial, CO Sat - Sep 12, 2026 Running > 5k, 10k, Half Marathon, 1 mile
Oktoberfest Run 5K/10K/13.1 DENVER/AURORA Centennial, CO Sat - Sep 26, 2026 Running > 5k, 10k, Half Marathon, 1 mile
