Course
The 10K is run on Memorial Day morning in Boulder and finishes inside Folsom Field at the University of Colorado, where finishers are cheered by a stadium crowd. Runners are set off in waves seeded by predicted finish time.
Key dates
- !RegistrationOpen now
- ★Race dayMon 31 May 2027
About
The BOLDERBoulder 10K is Boulder, Colorado's long-running Memorial Day tradition, with wave starts designed for walkers, joggers and racers of every pace.
Save BOLDERBoulder 10K to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.