Dirty December Trail Run
San Diego, United States • 20 Dec 2026
Dirty December Trail Run - December 20, 2026
The event takes place in San Diego, CA on Sunday, December 20, 2026. It includes multiple race options and a costume contest with two award categories: solo costume and team costume. Registration closes on Friday, December 18 at 11:59 PM PT. The organizer lists a website and maps for directions.
Race formats and course details
- Marathon
- 1/2 Marathon
- 10K
- Hill Climb 6HR
The Hill Climb 6-hour race is described as a new event. It uses a 2.5-mile route that goes down and then back up Cardiac Hill. Participants can complete repeated 2.5-mile laps during the six-hour period; cumulative distances shown include 2.5, 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 27.5, and 30 miles. Winners of the Hill Climb receive "King" and "Queen of the hill" awards. Visit the organization's website for the most recent information.