California Fall Classic at Lake Sonoma

The California Fall Classic at Lake Sonoma is a challenging ultramarathon event held in Healdsburg, California, featuring two distances: 100K and 55K. Set amidst the scenic wine country during harvest season, the courses offer relentless single-track trails with stunning views of Lake Sonoma. The 100K serves as a qualifier for the Western States Endurance Run with an 18-hour cutoff, while the 55K is ideal for first-time ultra runners.

Both races include multiple aid and water stations spaced to support runners throughout. The event weekend also features on-site camping, live music, and local food and wine, creating a vibrant community atmosphere supporting a charitable cause. Visit the organization's website for the most recent information.