Mermaid Half Marathon San Diego

Mermaid Half Marathon San Diego takes place in San Diego, California, on February 27, 2027, with three road distances started in sequence: the half marathon (13.1 miles) at 7:00 a.m., the 10K (6.2 miles) at 7:15 and the 5K (3.1 miles) at 7:30. The event belongs to the Mermaid Series, and no elevation figures are published for the courses.

Staggered starts a quarter of an hour apart keep the fields separate, which helps if you are running the half and want clear road for the opening miles. The range of distances suits a group with mixed experience: one entry covers a first 5K and a serious half on the same morning. For the longest option, count on ten to twelve weeks of preparation with a weekly long run reaching 11 or 12 miles before race day.