18 Upcoming Races Near Santa Clara, CA in December, 2026

Fri, Dec 41 race

The Krampus Cross Country 5K, 10K, or Naughty N...

San Francisco, CA

10K

Trail

Fast

View details for race The Krampus Cross Country 5K, 10K, or Naughty Nine Miler (LIVE or VIRTUAL)!

Sat, Dec 53 races

Hot Cocoa Family Fun Run- 2026, hosted by Sorop...

Patterson, CA

View details for race Hot Cocoa Family Fun Run- 2026, hosted by Soroptimist International of Patterson

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Jingle All the Way 5k and 10k 2026

Mountain House, CA

10K

Fast

View details for race Jingle All the Way 5k and 10k 2026

Midway Shelter Winter Run / Walk ~ 5k, 10k and ...

Alameda, CA

10K

Trail

View details for race Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run

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Sun, Dec 62 races

Baker Beach 5K

San Francisco, CA

View details for race Baker Beach 5K

Reindeer Run 5k Fun Run

Union City, CA

View details for race Reindeer Run 5k Fun Run

Sat, Dec 124 races

Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO

San Francisco, CA

10K

Half

View details for race Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO

2026 Hark the Herald Half Marathon & 10K

Tiburon, CA

Half

10K

Trail

View details for race 2026 Hark the Herald Half Marathon & 10K

50th Annual Holiday Run and Walk for Health

Antioch, CA

1 Mile

View details for race 50th Annual Holiday Run and Walk for Health

Summit Rock

Saratoga, CA

10K

Half

Trail

View details for race Summit Rock

Sun, Dec 133 races

2026 Annual Sausalito Jingle Bell 5K

Sausalito, CA

View details for race 2026 Annual Sausalito Jingle Bell 5K

Rainbow Falls 5K

San Francisco, CA

View details for race Rainbow Falls 5K

Santa Run Silicon Valley

San Jose, CA

Fast

View details for race Santa Run Silicon Valley

Sat, Dec 191 race

Woodside Ramble

Woodside, CA

10K

Trail

View details for race Woodside Ramble

Sat, Dec 261 race

A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO

San Mateo, CA

10K

Half

View details for race A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO

Sun, Dec 271 race

Stern Grove 4 mile

San Francisco, CA

View details for race Stern Grove 4 mile

Thu, Dec 312 races

New Year's One Day

San Jose, CA

Ultra

View details for race New Year's One Day

Brazen New Year's Eve 2026

Castro Valley, CA

Half

Trail

View details for race Brazen New Year's Eve 2026

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