CC
Clo Cow Half Marathon
Race Date
Oct 11, 2026
Location
Petaluma, CA
Course Info
Terrain
road
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
Historical Performance
Median Finish
2:08:36
9:49/mi
Winning Time
1:23:20
6:22/mi
Finishers (2025)
275
States Represented
4 / 50
Gender Split
42% Female58% Male
Finish Time Distribution
1:203:15
FASTER 25%
1:52:36
MEDIAN
2:08:36
SLOWER 25%
2:27:47
Average runner age: 38
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