The BolderBOULDER 10k is the biggest Memorial Day celebration on earth. It attracts over 50,000 runners, joggers, walkers and wheelchair racers. It also draws professional athletes from around the world to compete for one of the largest non-marathon prize purses in running. The course winds through the neighborhoods of Boulder, CO with live music and entertainment around every corner. The famous finish and tribute is at the University of Colorado's Folsom Field with over 100,000 spectators. The BolderBOULDER was named America's All-Time Best 10K by Runner's World, is the 4th largest running race in the United States and the 7th largest in the world.