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Half Marathon Calendar near Petaluma 2025-2026

Explore the top half marathons near Petaluma for 2025-2026! We've gathered 26 exciting races in the area. Check out our detailed list below to find your next local race.

May 2026
May
16
Saturday

Wildcat Half Marathon

Trail Run 5 km 10 km Half Marathon
May
30
Saturday

Sonoma Coast Trail Runs

Trail Run Half Marathon 30 km Marathon 50 km
May
30
Saturday

Nitro Trail

Trail Run 5 km 10 km Half Marathon
June 2026
Jun
28
Sunday

Mare Island Half Marathon

5 km 10 km Half Marathon
July 2026
Jul
18-19
Sa - Su

Napa to Sonoma Half Marathon

5 km Half Marathon
August 2026
Aug
22-23
Sa - Su

Santa Rosa Marathon

5 km 10 km Half Marathon Marathon
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