« All EventsThis event has passed.Bolder Boulder 10kMay 27, 2019« Rocky Mountain Brew Runs: Grist BrewingLaguna Hills Memorial Day Half Marathon 5K 10K Kids Run »Bolder, CO. The biggest Memorial Day party on earth. 50,000+ participants. 10K race.+ Google Calendar+ iCal Export Details Date: May 27, 2019 Event Category:Running Website: http://www.bolderboulder.com/ Organizer BolderBOULDER Website: http://www.bolderboulder.com/Related Events Runtastic Dino (Half, 5K & Kid’s Run) May 4 @ 7:30 am - 12:00 pm Run of Remembrance 10K, 5K & Mile (Memorial Day) May 27 @ 8:00 am Runtastic Timp (Half, 10K, 5K & Kids Run) June 22 @ 6:00 am - 12:00 pm