Net proceeds from the Marin County Triathlon 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.

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Latest News & Race Updates

Marin County Triathlon Training for KIDS!

Otter Tri is excited for this fall season, beginning October 11, where they will be training kids ages 6-19 to race and be ready for the Marin County Triathlon Sprint and/or Kids Races. If you are interested in learning more, and to sign up, visit: ...