October 12, 2025
Join us on October 12, 2025 for the Clo Cow Half Marathon, 10K & 5K in charming Historic Downtown Petaluma! Wind your way through picturesque Sonoma County farmland and rolling hills, where friendly sheep, horses—and of course Moo-Cows—will cheer you on every step of the way. Sure, those climbs are a challenge, but the sweeping country views at the top are well worth the effort!
All events are sold out!
Youth Discount
Registrants under 18 receive a $10 discount at checkout (applies to all distances)
Top donors
| No. | Name | Amount |
|---|---|---|
| 1 | Marcia Keasler | $107.35 |
| 2 | Jackie Magliari | $107.35 |
| 3 | Catherine Bevanda | $107.35 |
| 4 | Trang Nguyen | $107.35 |
| 5 | Geri Johnston | $54.10 |
| 6 | Anonymous | $54.10 |
Contact information
- Event contact
- Chris Mason
- Website
- Visit website
