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Lake Sonoma 100K / 55K

Lake Sonoma, United States • 18 Oct 2025

The California Fall Classic at Lake Sonoma features two challenging ultra-distance races: a 100K and a 55K, set against the stunning backdrop of wine country. Scheduled for October 18, 2025, this event is renowned for its scenic single-track trails and vibrant community atmosphere, complete with local food, wine, and live music. The races serve as qualifiers for the prestigious Western States Endurance Run, making them ideal for runners seeking late-season challenges. Proceeds from the event support the Children of Vineyard Workers Scholarship Fund, emphasizing its community-focused mission. Participants can enjoy free on-site camping and a lively race weekend experience. Visit the organization's website for the most recent information.

United States California Lake Sonoma

Race information

Website
100 km
100k
55 km
55k
Visit the organization's website for the most recent information.
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