Net proceeds from the Marin County Half Marathon help children learn how to swim at the YMCA.

Days until the race.








Why support the Sustainable Sports Foundation?

With your support, we funded Spring Splash Week at the YMCA for 350 kids.

To learn more about Sustainable Sports Foundation events & where your money goes, please click here.

Donate via PayPal:

Purchase Raffle Tickets to Support the Sustainable Sports Foundation!

A raffle will be held to benefit the Sustainable Sports Foundation at the San Rafael Joe’s 4th Annual Golf Tournament on August 21, giving underserved children the opportunity to learn to swim and be safe around the water.

Prizes include wine tastings, autographed sports memorabilia, gift certificates and more.

You do not need to be present to win.

Latest News & Race Updates

Thank you for the feedback Jackie!

I do 10-12 races each season (including national and international championship events), and I have to say that the Marin County Tri is one of the most (if not THE most) well organized event I’ve attended. There were so many meaningful, little extras I don’t even know...