2027 Clo-Cow Half Marathon and 5K

Race Information

The Clo-Cow Half Marathon, 10k and 5k in historic Downtown Petaluma has become a fixture on the North Bay running scene each September. Runners tour rural Sonoma County farmland with rolling hills and plenty of sheep, horses and cows to cheer you on as you climb. The course is a bit challenging, but you'll be rewarded with some great views. Yes, half marathoners will run from the valley to a ridge line and back.

👍 Run Pick of the Month: Santa Cruz Marathon

📍Santa Cruz - Sunday October 25, 2026

😄 Why We Like This Run
✅ Three epic distances
✅ A world-class coastal course
✅ The ultimate surf-town vibe

Experience the magic of the Pacific coastline at the Santa Cruz Marathon, a brand-new race event celebrating the heart and soul of California’s favorite surf town. Trade the concrete jungle for ocean breezes and iconic scenery and experience a race day like no other.

Whether you're lacing up for your first race or chasing a personal best, you're invited to be part of history. Join in the inaugural 2026 edition and secure your place in the record books with an exclusive, one-time inaugural finisher medal.

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