Bolder Boulder 2027
Boulder, 
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About the event
The Bolder Boulder is one of the largest 10K road races in the United States, held in Boulder, Colorado on Memorial Day. It finishes inside the University of Colorado's Folsom Field stadium.
Key figures
Distance10 km6.2 miles
First run19792,700 runners in the first field
Field size52,000+third largest race in the United States
FinishFolsom FieldUniversity of Colorado stadium
Official nameBOLDERBoulder 10Kas written by the organiser
Stay in Boulder
Check-in 30 May, check-out 1 Jun 2027 — 2 nights around 31 May 2027. Change the dates to stay longer.
AREA
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Getting there
- AirportDenver International Airport (DEN), about 54 km
- Time zoneAmerica/Denver
Coming years
2028
The organiser had not announced the 2028 edition as of 2026-09-03.