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California Fall Classic East Bay Training Run

Lake Sonoma, United States • 18 Oct 2025

The California Fall Classic at Lake Sonoma is a premier ultramarathon event featuring 100K and 55K races set in California's scenic wine country. Held in October, the courses traverse challenging single-track trails with stunning views of Lake Sonoma during harvest season. The event serves as a qualifier for the Western States 100-Mile Endurance Run and offers a festive atmosphere with live music, local food, wine, and beer. Participants enjoy amenities like free on-site camping and community support, with proceeds benefiting the Children of Vineyard Workers Scholarship Fund. The race combines endurance challenge with the beauty of Northern California's landscape. 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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