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Upcoming Half Marathon Races Near Merced County, CA in September, 2025

Alameda Island Running Festival logo

Alameda Island Running Festival

Alameda, CA

Sunday, September 21st, 2025

Half
10K
5K
View details for race Alameda Island Running Festival
National Coffee Day: Run for Coffee SAN FRANCISCO logo

National Coffee Day: Run for Coffee SAN FRANCISCO

San Mateo, CA

Saturday, September 27th, 2025

5K
10K
Half
View details for race National Coffee Day: Run for Coffee SAN FRANCISCO
National Singles Day: Singles & Friends Running Club SAN FRANCISCO logo

National Singles Day: Singles & Friends Running...

San Mateo, CA

Saturday, September 27th, 2025

5K
10K
Half
Trail
View details for race National Singles Day: Singles & Friends Running Club SAN FRANCISCO

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Distances:

5K10KHalf MarathonMarathon

Months:

SeptemberOctoberNovember

Tags:

TrailBoston QualifiersFast Courses

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