Clo Cow Half Marathon

The Clo Cow Half Marathon, 10K & 5K is an annual running event held in Historic Downtown Petaluma, California. The 13th edition, scheduled for October 12, 2025, features three race distances: a half marathon, 10K, and 5K. The scenic half marathon course winds through rural Sonoma County farm country, offering runners challenging rolling hills and rewarding views, accompanied by local farm animals like sheep, horses, and cows.

Participants receive a T-shirt, cowbell medal, and post-race food. The event supports the Petaluma Educational Foundation and provides a friendly, community-focused atmosphere celebrating fitness and local agriculture. Visit the organization's website for the most recent information.