Summer Breeze Half Marathon / 10K / 5K

Summer Breeze Half Marathon / 10K / 5K takes place on July 31, 2027, in San Leandro, California, on the shore of San Francisco Bay. Three distances are offered: the half marathon (13.1 mi), a 10K (6.2 mi) and a 5K (3.1 mi). Start times are not listed in our records.

Bayside trails are flat and firm, and the East Bay's summer mornings are cool and grey — the two ingredients of a fast half marathon in a month when most of the country cannot offer one. The breeze that gives the race its name is the only obstacle: on an out-and-back, run the outbound leg on effort and expect to make up the difference coming home.