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

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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

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...

San Mateo, CA

Saturday, September 27th, 2025

5K

10K

Half

Trail

View details for race National Singles Day: Singles & Friends Running Club SAN FRANCISCO

Explore more in Merced County, CA

Distances:

5K 10K Half Marathon Marathon

Months:

September October November

Tags:

Trail Boston Qualifiers Fast Courses

State:

All California races

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