Races
BOLDERBoulder
A 10K road race in Boulder, Colorado. It is held every Memorial Day and finishes inside the University of Colorado stadium.
- Type
- 10K
- Where
- Boulder, Colorado
- Level
- Beginner to experienced
Race dates
2027: Monday, May 31, 2027
Dates change, so check the official site before you enter or book travel. Last checked June 3, 2026.
About the race
Open to everyone, from first-timers to experienced runners.
Training for it
A 10K plan usually takes eight to twelve weeks from a base of running a few times a week.
- Build your longest run to 12 to 15 km so the race distance feels manageable.
- One threshold or interval session a week is enough.
- Practise your race-morning routine on a long-run day.
