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Races near the Bay Area in December 2026

Updated October 17, 2026

13 races are on the calendar near the Bay Area in December 2026, starting with Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run on Saturday, December 5 in Alameda. Listed by date, with prices and early-bird deadlines where the race publishes them.

Oct 2026Nov 2026Dec 2026Jan 2027Feb 2027Mar 2027Apr 2027May 2027Jun 2027Jul 2027Aug 2027Sep 2027

• Sat5Dec

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

  Sat Dec 5 · 8:30 AM · Alameda · East Bay

  5K10KTrail

  from $45Goes up Dec 5
• Sat5Dec

  Peacock Gap Trail Run

  Sat Dec 5 · 8:30 AM · San Rafael · Marin

  10KHalf marathon19.5 milesTrail

  Reg. closed
• Sat5Dec

  16th Annual Reindeer Run/Walk

  Sat Dec 5 · 9:00 AM · American Canyon · Napa & Sonoma

  5K10K

  from $50Goes up Nov 16
• Sun6Dec

  Reindeer Run 5k Fun Run

  Sun Dec 6 · 8:00 AM · Union City · East Bay

  5K

  from $17Goes up Nov 1
• Sat12Dec

  Run for Breast Cancer 5K/10K/13.1 San Francisco

  Sat Dec 12 · 7:30 AM · San Francisco · San Francisco

  1 mile5K10KHalf marathon

  from $30
• Sat12Dec

  Sunrise Marathon 5K/10K/13.1 San Francisco

  Sat Dec 12 · 7:30 AM · San Francisco · San Francisco

  1 mile5K10KHalf marathon

  from $30
• Sat12Dec

  Summit Rock

  Sat Dec 12 · 8:30 AM · Saratoga · South Bay & San Jose

  5K10KHalf marathonTrail

  from $73Goes up Nov 8
• Sat12Dec

  50th Annual Holiday Run and Walk for Health

  Sat Dec 12 · 9:00 AM · Antioch · East Bay

  1 mile5K

  from $35
• Sun13Dec

  Silicon Valley Santa Run

  Sun Dec 13 · 3:00 PM · San Jose · South Bay & San Jose

  5K

  from $45Goes up Nov 11
• Sat19Dec

  Woodside Ramble

  Sat Dec 19 · 8:00 AM · Woodside · Peninsula

  10KHalf marathon23.1 miles50KTrail

  Reg. closed
• Sat26Dec

  A Merry Christmas Run 5K/10K/13.1 San Francisco

  Sat Dec 26 · 7:30 AM · San Mateo · Peninsula

  1 mile5K10KHalf marathon

  from $30
• Sat26Dec

  New Year's Run 5K/10K/13.1 San Francisco

  Sat Dec 26 · 7:30 AM · San Mateo · Peninsula

  1 mile5K10KHalf marathon

  from $30
• Thu31Dec

  New Year's One Day

  Thu Dec 31 · 8:55 AM · San Jose · South Bay & San Jose

  5K30 miles50 miles100 miles

  from $90Goes up Dec 1

Quick answers

How many races are near the Bay Area in December 2026?

13 races are listed near the Bay Area in December 2026. The first is Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run on Saturday, December 5 in Alameda, and the last is New Year's One Day on December 31.

What is the cheapest race near the Bay Area in December 2026?

Reindeer Run 5k Fun Run on December 6 has the lowest listed entry fee: $17. Prices are before the registration platform's processing fee.

When does the next early-bird price end for races near the Bay Area?

Reindeer Run 5k Fun Run: the 5K goes from $27 to $35 after November 1. 4 more of these races publish a later price increase.

Are there half marathons or marathons near the Bay Area in December 2026?

Yes: 7 half marathons and 0 marathons. The first is Peacock Gap Trail Run on December 5.