New Year's Run 5K/10K/13.1 SAN DIEGO

New Year's Run 5K/10K/13.1 SAN DIEGO takes place in San Diego, California, on December 26, 2026. The half marathon (13.1 miles), the 10K, the 5K and a one-mile family fun run start together at 7:30 a.m., and each can be run or walked at your own pace. Timing is optional, a virtual entry is available if you would rather cover the distance from home, and finishers receive a gift bag with a shirt and a medal.

Optional timing takes the pressure off, which makes the half a good place to rehearse race-day logistics rather than chase a number: eat what you plan to eat, run the pace you plan to run, and see what holds over 13.1 miles. First-timers at the distance should count on ten to twelve weeks of building with one weekly long run. If your December has already been heavy, the 5K keeps the morning without costing the week.