Now in its 15th year, the Marin Endurance Festival continues its tradition as one of the Bay Area’s longest standing endurance sporting events. With the courses’ connection to the natural landscape and commitment to athlete experience, the Marin County Triathlon and Marin Half Marathon events are magnificently scenic, spectator-friendly and gentle on the environment.

We hope you will join us for this year’s races, either as a participant, volunteer or sponsor.

“The greater the obstacle, the more glory in overcoming it.”