October 6, 2019

We are so excited to host another running event on beautiful Mare Island! All finishers 21yrs and up will receive a FREE BEER thanks to our major sponsor the MARE ISLAND BREWING COMPANY! The distances for this race will be a Half Marathon, 10K and 5K courses, meandering through natural and historic sections of the island. There will also be food available for purchase at our finish line party hosted at the Mare Island Brewing Company Coal Sheds!

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 panoramic views of the Bay, Mt. Diablo, and Mt. Tamalpais. This is a tough hill but the view is COMPLETELY worth it! 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 San Pablo Preserve Trail has hard packed dirt and rock so expect a few loose rocks on that portion. The Half Marathon course also does TWO LAPS around the San Pablo Bay trail loop with the first one going all the way out to the end of the trail. 

The 10K will take you by the old Admiral housing and the San Pablo Bay Trail before heading to the finish line.

The 5K race will run by the old Admiral housing before heading to the finish line. 

All registered participants will receive a tech shirt and finisher's medal. Registration will close on October 1 and there will not be any day of registration so register before all of the spots fill up for this high demand race! This is a rain or shine event and we do not offer refunds or transfers but we can defer your registration to our next race.

Awards will be available for Male and Female of every category that has a minimum of three entrants. 

Event details and schedule

Arrival Info:
Check-in: 851 Waterfront Ave, Mare Island, CA 94592

This is the Mare Island address for the Mare Island Brewing Company at the historic Coal Sheds. Please arrive with plenty of time before your event start time to warm up and get your race bib.

Parking Info:
There are multiple parking locations near the coal sheds and across the street to the west of the coal sheds area. Info will be provided on our website and in the race packet.

What to bring:

With Vallejo being on the waterfront it is subject to a chilly morning marine layer. Temperatures possibly go from the mid 50s in the morning to high 80s by noon, please plan accordingly. 

Olympic Triathlon

Event Information

iRecreate Running Events

Mare Island Brewing Company
851 Waterfront Ave.
Mare Island, CA  94592 

7:00 AM - Check-in and day of registration

8:30 AM - Half Marathon

10:00 AM -  10K & 5K

(Start times subject to change)