Clo Cow Half Marathon

10/09/2026

🙌 We need a few more helping hands!

It takes a great team of volunteers to make race day happen, and we're looking for a few more people to join the crew at packet pickup on Saturday and race day on Sunday. Interested in joining us? Click the link below to sign up.

https://raceroster.com/events/2026/115095/clo-cow-half-marathon-10k-and-5k/volunteer/register

10/08/2026

It's almost race day! Less than 50 spots remain for the 14th annual Clo Cow Half Marathon, 10K, & 5K this Sunday. Last call to register. https://www.clocowhalf.com/

10/04/2026

We’re just ONE WEEK away from the 14th Annual Clo Cow Half Marathon, 10K & 5K!

Haven’t joined the herd yet? Limited spots are still available, so don’t wait to register! Get moovin’ and we’ll see you at the starting line! 🐄🔔

https://www.clocowhalf.com/

08/27/2026

Four Petaluma runners share their training and goals for the upcoming 5K, 10K, and half marathon footraces from Kentucky Street to the scenic hills west of town.

Four Petaluma runners share their training and goals for the upcoming 5K, 10K, and half-marathon footraces from Kentucky Street to the scenic hills west of town

08/11/2026

The Clo Cow Half Marathon returns to Downtown Petaluma on Sunday, October 11, 2026. Register today and run with Clo this fall!
https://www.clocowhalf.com/

10/17/2025

🥛🐮 Thank You, Clover Sonoma! 🐮🥛

For 12 incredible years, Clover Sonoma has been the heart behind the Clo Cow Half Marathon — helping us celebrate fitness, community, and Sonoma County’s dairy heritage in the most moo-velous way possible! 🏃‍♀️🏃‍♂️

10/16/2025

Thank you to everyone who helped make this year's Clo Cow Half Marathon our biggest and best yet! We hope you had a great race and can't wait to see you next year!

Jason Todd Photography Clover Sonoma Visit Petaluma, CA

10/09/2025

The 2025 Clo Cow Half Marathon, 10K & 5K is completely sold out. Thank you to everyone who has signed up and we look forward to seeing you this weekend!

Didn't register but still want to be part of the fun? Sign up to be a volunteer on Saturday or Sunday: https://raceroster.com/events/2025/103828/clo-cow-half-marathon-10k-and-5k/volunteer/register

10/03/2025

Cindy's Race is this Sunday! Join our friends at FIT4MOM Santa Rosa & Windsor at Howarth Park in Santa Rosa for a community run to support those affected by Breast Cancer. We hope to see you there!

Register at: https://runsignup.com/Race/CA/SantaRosa/cindysracefit4momsantarosa

10/02/2025

We're looking forward to a record breaking turnout! See you in 11 days!