2023 Mare Island Half Marathon Sponsored by Mare Island Brewing Co.

850 Nimitz Ave
Vallejo, CA 94592

Running > 10k, 5k, Half Marathon

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Event Description

Thank you for your interest in the 2023 Mare Island Half sponsored by the Mare Island Brewing Company. We will be running from the Mare Island Brewing Company coal shed location on Mare Island and stay on the island for the full race. 

Our Half Marathon course will take you along the historic naval yard on the east side of the island, to the highest point of Mare Island for beautiful views of the Bay, Mt. Diablo, and Mt. Tamalpais. It will then run you down by the Old Admiral housing and out to the Mare Island portion of the San Pablo Bay trail on the western side of the island. The 10K will take you by the Old Admiral housing and the San Pablo Bay Trail before heading to the finish. The 5K race will run by the Old Admiral housing before heading to the finish. All courses are still going through the approval process and some tweaks may be made, but the overall feel for the race should not alter too much. Parts of the run through the San Pablo Bay Trail are unpaved.

All participants will receive a t-shirt and finishers medal. Awards will be available for Male and Female of every category. We expect to have categories of <19, 20-29,30-39,40-49,50-59 and 60+

Pre-registration will close on June 21st. Shirt sizes will only be guaranteed for registrations prior to June 5th. Any registrations after that will be first come first serve order during check in with the remaining sizes that are ordered.

Event details and schedule


Check in opens: 6:30am

All start times subject to adjustment based on size of event.

Half Marathon 8:00am

10K: 9:15am

5K: 9:45am

Finish Line Close: 11:30am

                               Pace: 16min/mile Half, 19min/mile 10K, 34min/mile 5K

Course Info:

The run will be through the historic Mare Island Naval Shipyard. Course subject to change for safety reasons if deemed necessary.

Arrival Info:

Check-in: 850 Nimitz Ave Vallejo, CA 94592

Please arrive with plenty of time before your event start time. As much as we want to be able to predict everything that will happen, all we know is that we are going to hold our race.

 Parking Info:

Info will be provided on our website, in the race packet and below in the event photos. 


What to bring:

Vallejo being on the waterfront is subject to morning fog. With temperatures possibly going from the mid 50s to 90s possible by noon please plan accordingly. 

Event Location & Accomodations

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