All-Out Fa La La

All-Out Fa La La is held in Westminster, Colorado, on December 5, 2026, on the Big Dry Creek Trail. The half marathon (13.1 miles) starts at 9:00 a.m., the 10K at 9:30 a.m. and the 5K at 9:40 a.m., on a fast, flat and well-maintained path with views out to the Front Range. Finish times at any of the three distances can be used as a qualifying time for the BOLDERBoulder. There is on-course support, a customizable finisher medal, a team entry option, dogs are welcome, and a virtual option covers you if conditions change.

A flat surface and a qualifying-time incentive make this a genuine target race rather than a novelty. Choose the distance you have trained for, since the qualifier counts either way, and remember that Westminster sits at altitude if you are travelling in. Eight to twelve weeks of consistent running with one long run a week covers the half.