Dirty December Trail Run
San Diego, United States • 20 Dec 2026
Dirty December Trail Run
The Dirty December Trail Run takes place on December 20, 2026 in San Diego, CA. The event is presented as a low key holiday trail run and offers multiple distance options for trail runners.
Available distances:
- Marathon
- Half Marathon
- 10K
- Hill Climb 6HR
The Hill Climb 6HR is a new event focused on repeated up-and-down laps of Cardiac hill. Each lap is a 2.5 mile down-and-back loop; runners complete as many 2.5 mile laps as they can within six hours. Reported cumulative lap distances include 2.5, 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 27.5, 30 and so on. Winners in the hill event receive King and Queen of the hill awards.
The event includes a costume component with awards in two categories: solo costumes and team costumes. Registration for the event closes on Fri, Dec 18 at 11:59 PM PT.
Location is San Diego, CA. The description emphasizes trail running on a holiday weekend, multiple standard race distances, a timed hill-climb endurance format, and costume awards in two categories. Visit the organization's website for the most recent information.