The 2017 edition of the ColderBOLDER 5k didn’t quite live up to its namesake with temperatures rising into the mid-50s by the time the open wave ran at 9:50 am. But it proved to be ideal conditions as just over 1,800 runners competed in the
The 2015 Colder Boulder will be held December 5 on the CU campus. Runners compete in invitational waves for the coveted Cold Penguin medal.
The 2013 ColderBoulder was earned its name again this year with the coldest race to date recording temperatures from -5° to 5° at race starts. Photos and results