CC
Clo Cow Half Marathon
Race Date
Oct 11, 2026
Location
Petaluma, CA
Course Info
Course Type
Loop Course
Terrain
road
Difficulty
Rolling Hills
Elevation Gain
0'
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
10K5K run
Race Day Weather
5-year historical avgStart (Low)
52°
Afternoon (High)
72°
Warm — hydration strategy is key, start conservatively
0.0"
Precipitation
11 mph
Wind
76%
Humidity
Race Photos
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