Dirty December Trail Run

DEC
20
2026
A holiday trail event in San Diego with Marathon, Half Marathon, 10K and a new 6 Hour Hill Climb on Cardiac hill. Costume awards are given in solo and team categories.
Sun 20 Dec 2026
Marathon Half Marathon 10 kilometers

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Dirty December Trail Run : San Diego, CA

The Dirty December Trail Run is a holiday trail event in San Diego, CA, organized by Dirty Feet Productions. It features multiple race options including a Marathon, a Half Marathon, a 10K, and a new Hill Climb timed for six hours.

Distances

  • Marathon
  • Half Marathon
  • 10K
  • Hill Climb 6 Hour event with 2.5 mile laps

The Hill Climb is run on Cardiac hill with a 2.5 mile out-and-back lap. Participants complete as many laps as they can within six hours; example cumulative totals listed include 2.5, 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 27.5, and 30 miles.

The event includes a costume component with awards in two categories: best solo costume and best team costume. The organizer describes the run as a low key holiday trail event. Registration has a published closing time of Fri, Dec 18 at 11:59 PM PT.

The description above summarizes the event format, distance options, the hill climb structure, and the costume awards as provided by the event organizer. Visit the organization's website for the most recent information.

Marathon
Marathon
Half Marathon
1/2 Marathon
10 km
10k
Hill Climb 6hr
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