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Dirty December Trail Run

San Diego, United States • 20 Dec 2026

Dirty December Trail Run

The Dirty December Trail Run is an athletic event held in San Diego, California. This trail-focused competition takes place on the third Sunday of December and features a selection of distances and formats focused on natural terrain.

Participants can choose from several distinct course lengths:

  • Marathon
  • 1/2 Marathon
  • 10K
  • Hill Climb 6HR

The event includes a holiday theme where runners have the option to compete in costumes. Recognition is provided for participants through best costume awards in both solo and team categories.

The Hill Climb 6HR is a specific endurance format focused on Cardiac Hill. Participants attempt to complete as many laps as possible within a six-hour time limit. Each lap consists of a 2.5-mile segment involving a descent followed by an ascent. Competitors in this category are eligible for specific King and Queen of the hill awards based on their performance. Registration for the event concludes two days prior to the race date. Visit the organization's website for the most recent information.

United States California San Diego

Race information

Website Registration
Marathon
Marathon
Half Marathon
1/2 Marathon
10 km
10k
Hill Climb 6hr
Visit the organization's website for the most recent information.
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