Upcoming Races Near Windsor, CA in December, 2026

Wed, Dec 21 race

No Boundaries Beginner's 5K & 10K Training | 20...

Sacramento, CA

View details for race No Boundaries Beginner's 5K & 10K Training | 2026 Season

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)!

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Sat, Dec 53 races

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

16th Annual Reindeer Run/Walk

American Canyon, CA

10K

View details for race 16th Annual Reindeer Run/Walk

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Peacock Gap Trail Run

San Rafael, CA

Half

Trail

Fast

View details for race Peacock Gap Trail Run

Sun, Dec 62 races

Baker Beach 5K

San Francisco, CA

View details for race Baker Beach 5K

2026 California International Marathon

Sacramento, CA

View details for race 2026 California International Marathon

Sat, Dec 123 races

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

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

Sun, Dec 131 race

2026 Annual Sausalito Jingle Bell 5K

Sausalito, CA

View details for race 2026 Annual Sausalito Jingle Bell 5K

Sun, Dec 201 race

Rainbow Falls 5K

San Francisco, CA

View details for race Rainbow Falls 5K

Tue, Dec 221 race

Jolly Jog Fun Run/Walk - Sacramento Run Crew

Sacramento, CA

View details for race Jolly Jog Fun Run/Walk - Sacramento Run Crew

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

RunSac Race Series

Sacramento, CA

View details for race RunSac Race Series

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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