Clo Cow Half Marathon

OCT
11
2026
A race day in Historic Downtown Petaluma on October 11, 2026 featuring a half marathon, 10K and 5K through Sonoma County farmland and rolling hills.
Sun 11 Oct 2026
Half Marathon 10 kilometers 5 kilometers

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Clo Cow Half Marathon, 10K & 5K - 14th Annual

The Clo Cow event is scheduled for October 11, 2026 in Historic Downtown Petaluma, California. It offers three distance options that start from the downtown area and follow routes through Sonoma County farmland and rolling hills.

  • Half Marathon - includes T-Shirt, Cowbell medal, Post-race food
  • 10K - includes T-Shirt, Cowbell medal, Post-race food
  • 5K - includes T-Shirt, Cowbell medal, Post-race food

The course travels through rural scenery and includes uphill sections and open country views. Along the routes participants may encounter farm animals such as sheep, horses, and cows. The event materials describe the terrain as including climbs with views from higher points.

Registration fees vary by distance and by registration period. Registrants under 18 receive a $10 youth discount at checkout. The event lists post-race food and finisher recognition as part of the included race items.

The event raises funds for the Petaluma Educational Foundation. At the time of listing the foundation had $351.14 raised toward a $2,500.00 goal, shown as 14% of the goal. Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
10 km
10k
5 km
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