28 Upcoming Races Near Brentwood, 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 56 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

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

16th Annual Reindeer Run/Walk

American Canyon, CA

10K

View details for race 16th Annual Reindeer Run/Walk

Stockton Santa Dash! 5K & 10K

Stockton, CA

10K

View details for race Stockton Santa Dash! 5K & 10K

Peacock Gap Trail Run

San Rafael, CA

Half

Trail

Fast

View details for race Peacock Gap Trail Run

Sun, Dec 63 races

Reindeer Run 5k Fun Run

Union City, CA

View details for race Reindeer Run 5k Fun Run

2026 California International Marathon

Sacramento, CA

View details for race 2026 California International Marathon

Baker Beach 5K

San Francisco, CA

View details for race Baker Beach 5K

Sat, Dec 127 races

Race to Whoville

Manteca, CA

View details for race Race to Whoville

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

Bah! Who-Bug 5K

Manteca, CA

View details for race Bah! Who-Bug 5K

Modesto Spirit of Giving 5K Run & Walk

Modesto, CA

View details for race Modesto Spirit of Giving 5K Run & Walk

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

Summit Rock

Saratoga, CA

10K

Half

Trail

View details for race Summit Rock

Sun, Dec 132 races

2026 Annual Sausalito Jingle Bell 5K

Sausalito, CA

View details for race 2026 Annual Sausalito Jingle Bell 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

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 313 races

Brazen New Year's Eve 2026

Castro Valley, CA

Half

Trail

View details for race Brazen New Year's Eve 2026

RunSac Race Series

Sacramento, CA

View details for race RunSac Race Series

New Year's One Day

San Jose, CA

Ultra

View details for race New Year's One Day

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