Mare Island Half Marathon
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Mare Island Half Marathon, 10K, 5K and Kid’s Dash : Vallejo, CA
The event takes place on June 28, 2026 and is set entirely on Mare Island in Vallejo, California. The courses highlight waterfront views and the island's naval history, with a mix of paved and unpaved sections and sections along the San Pablo Bay Trail. The half marathon reaches the island's highest point, offering views toward San Pablo Bay, Mt. Diablo, and Mt. Tamalpais, and passes the Old Admiral housing and historic naval yard areas.
Packet pickup and the post race gathering take place at Mare Island Brewing Co., Coal Sheds, located at 850 Nimitz Ave, Vallejo, CA 94592. All pre registered participants receive a race t shirt and a finisher medal, and there is a post race celebration at the brewery. Overall and age group awards are given to the top three finishers in each division when at least five registrants compete; age groups are under 20, 20 to 29, 30 to 39, 40 to 49, 50 to 59, and 60 and over. As the island continues revitalization efforts, minor course changes may be made for runner safety and will be reflected on event course maps.
Distances Visit the organization's website for the most recent information.
- Half marathon
- 10K
- 5K
- Kid’s 0.5K dash
