Dirty December Trail Run
San Diego, United States • 20 Dec 2026
Dirty December Trail Run
The Dirty December Trail Run is scheduled for December 20, 2026 in San Diego, CA and is organized by Dirty Feet Productions. The event is described as a low-key holiday trail run that includes a costume contest with separate solo and team award categories.
Distances offered include:
- Marathon
- Half Marathon
- 10K
- Hill Climb 6HR: repeated 2.5 mile laps on Cardiac Hill
The new 6 hour hill-climb challenges participants to complete as many 2.5 mile laps as possible on Cardiac Hill. The event lists cumulative lap distances in 2.5 mile increments (for example 2.5, 5, 7.5, 10, and onward). Winners in the hill-climb receive special King and Queen of the hill awards.
Registration for the event closes on Fri, Dec 18 at 11:59 PM PT. The organizer provides online registration and event information through its event page. The race format combines fixed-distance options with a time-based hill-climb race and includes costume awards for solo and team entries. Visit the organization's website for the most recent information.