In 1979, we dreamt of attracting a few hundred of our friends to race though the streets of Boulder, Colorado, to celebrate Memorial Day with our families. The BOLDERBoulder has grown to become one of the largest and most highly acclaimed 10Ks in the world. Almost 1.2 million runners, joggers, walkers and spectators of all ages have gathered over the years to create a spectacle that defies description. Each year, we host 50,000+ participants and 100,000+ spectators at the foot of the Rocky Mountains for what we like to call the biggest and best Memorial Day celebration on earth. We celebrate this one-of-a-kind event and the 40-year milestone — its founders, the memories, the record-breaking finishes, the posters, the t-shirts, the celebrities, the spectators and more — with a beautiful, captivating hard-bound book.
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