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Skyline 50k Endurance Run

Name: Skyline 50k Endurance Run
Start: 2025-08-03
End: 2025-08-03
Location: Castro Valley

Castro Valley, United States • 3 Aug 2025

The Skyline 50K Endurance Run is one of the oldest continuously running 50K races in the United States, taking place annually in August at Lake Chabot Marina in Castro Valley, California. This event is designed for both first-time ultrarunners and seasoned veterans, featuring a scenic course that loops through the East Bay Regional Parks. Participants benefit from excellent aid station support provided by local running groups and a vibrant atmosphere created by enthusiastic volunteers. Runners receive a race shirt, special socks, and a finisher's medal, with awards for top finishers in various age groups. The event culminates in a celebratory gathering with plant-based BBQ and beer. Visit the organization's website for the most recent information.

United States California Castro Valley

Race information

Website Registration

UTMB 20K UTMB 50K

50 km

50k

21 km

21k

Visit the organization's website for the most recent information.

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0 km

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...

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...

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