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Lake Sonoma 100 Miler

Geyserville, United States • 1 Feb 2025

The Lake Sonoma 100 Miler, also known as "Sufferfest," is an exciting and unique 100-mile trail running event held in Geyserville, California. The race features a challenging course with approximately 27,000 feet of elevation gain, primarily on non-technical singletrack trails. Participants can enjoy a festival-like atmosphere with live music, food trucks, and wine tasting at the start/finish area.

The event prioritizes runner experience with generous cutoff times and well-stocked aid stations. Additionally, it supports the Children of Vineyard Workers Scholarship Fund, making it a community-focused event. Runners can also participate in a 4-person relay and a fun backyard run. Visit the organization's website for the most recent information.

United States California Geyserville

Race information

Website Registration
100 mi
27000 m+
100 Miler
100 mi
27000 m+
100m 4 Person Relay
Baby Backyard
Visit the organization's website for the most recent information.
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