The Winter Distance Series is a series of three running races held at Chatfield State Park in Littleton, CO. There are options to run three different variations of the complete series. Runners can also opt to register for each race separately.

Looking for volunteers:
We are currently looking for volunteers to help us put on the Winter Distance Series. All volunteers will get a free entry into another event produced by Colorado Runner Events. Please email us if you are interested?

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1% For The Planet
Colorado Runner Events has joined the global movement 1% for the Planet. 1% for the Planet is a growing group of more than 1,000 businesses that donate at least 1% of their sales to a network of environmental organizations worldwide.  1% for the Planet exists to build and support an alliance of businesses financially committed to creating a healthy planet. Yvon Chouinard, founder of Patagonia, and Craig Mathews, owner of Blue Ribbon Flies, started the organization in 2001, and they have raised more than $30 million so far.