The biggest, the boldest... it’s BolderBOULDER! Still locally owned and operated, BolderBOULDER has served over a million racers in their almost 40-year history. This epic Memorial Day weekend race has grown into one of the largest 10Ks in the world. Attracting some of the world’s best elites, spectators can watch runners finish in Folsom Field for the world’s largest 10K purse!
"This race made me proud to be a runner."
With lots of on-course entertainment, great organization, and a stadium finish with thousands cheering you on, one former racer captures it all by saying, “Can’t be BEAT!”
Boulder , CO