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

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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.

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Latest News & Race Updates

FAQ

Where & When is Packet Pick up? Friday, April 22 - Sports Basement Presidio, 610 Old Mason Street, San Francisco - 3 pm till 7 pm Saturday, April 23 - Andronico's Community Market Marin, 100 Center Boulevard, San Anselmo - 10 am till 2 pm Can participants pick up...

Run with Us This Saturday April 9th!

Join us this coming Saturday morning, April 9 for our run in the park!   Rain or Shine, of course.   It will be on part of the Marin County Half Marathon course with multiple distances available, from 2-3 miles, 5-6 miles and up. Some road, some trail.   Led by our...

Run With Us This Saturday Morning!

Everything is shaping up for our April 24 Marin County Half Marathon, 10k & 5k ~ and we are so glad you will be part of the party!!   More information will be coming soon about the event, but did want to let you know about a training run this Saturday morning,...