Less than a mile into the race, the leaders missed a turn taking a big chunk of the 10K field (and the lead 4K runner) on a 3.5 mile trek across Dillon Reservoir, before eventually getting back on course. Race organizers quickly created a new 10 Mile division to accommodate these finishers. Click here for results.

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1. Martin Pahl leads the charge at the start of the race.

2. Cile Chavez of Littleton starts her trek on the 4K course.

3. Part of the course ran on single track through the White River National Forest.

4. Most runners were all smiles as the sun was out and temperatures were in the mid thirties.

5. Adam Chase, trail editor for Running Times finishes the 10K.

6. Darrin Eisman (74), of Golden, rounds the turn for home.