« 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 Salt Lake City Marathon April 17 @ 6:00 am - 2:00 pm Serengeti Trail Races: Oquirrh to Stansbury Trail Races April 17 @ 8:00 am - 5:00 pm Provo City Half Marathon May 1 @ 7:00 am - 5:00 pm