RunRace USA › California › Clo Cow Half Marathon, 10K & 5K
Clo Cow Half Marathon, 10K & 5K
Petaluma, California · Sunday, October 11, 2026 · Half Marathon, 10K, 5K
Official race page & registration ↗- Date
- Sunday, October 11, 2026
- Location
- Petaluma, California
- Distances
- Half Marathon, 10K, 5K
Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.
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See every race on the California calendar, or use the Race Finder for maps and filters.