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Winter races near the Bay Area (2026-27)

Updated October 17, 2026

34 races are on the calendar near the Bay Area in winter 2026-27, starting with Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run on Saturday, December 5 in Alameda. That covers December to February. 15 of them publish an upcoming price increase, so signing up early saves money.

All winter races5K races (28)10K races (25)Half marathons (22)Marathons (3)Ultramarathons (5)Trail races (12)

• 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
• Fri1Jan

  Brazen New Year's Day

  Fri Jan 1 · 8:30 AM · Castro Valley · East Bay

  5K10KHalf marathonTrail

  from $73Goes up Dec 5
• Fri1Jan

  Brazen New Year's Eve

  Fri Jan 1 · 8:30 AM · Castro Valley · East Bay

  5K10KHalf marathonTrail

  from $68Goes up Oct 25
• Sat2Jan

  8th Annual Kiwanis Resolution 5K Run/Walk, and 10K Run/Walk

  Sat Jan 2 · 10:00 AM · Mountain View · South Bay & San Jose

  5K10KTrail

  from $50Goes up Nov 30
• Sat9Jan

  Jessie’s 45th Bday 5k Run/Walk

  Sat Jan 9 · 9:00 AM · Alameda · East Bay

  5K
• Sun10Jan

  SKECHERS Hot Chocolate Run San Francisco

  Sun Jan 10 · 7:20 AM · San Francisco · San Francisco

  5K10K15K

  see site
• Sat16Jan

  MLK Jr. Freedom Run 5K/10K/13.1 San Francisco

  Sat Jan 16 · 7:30 AM · San Francisco · San Francisco

  1 mile5K10KHalf marathon

  from $30
• Sun17Jan

  Spasm Crystal Springs Trail Run

  Sun Jan 17 · 7:50 AM · Woodside · Peninsula

  5 milesHalf marathon22 milesMarathon50KTrail

  from $60Goes up Jan 11
• Sat30Jan

  Coffee Lover Run San Francisco

  Sat Jan 30 · 7:30 AM · San Francisco · San Francisco

  1 mile5K10KHalf marathon

  from $30
• Sat30Jan

  Coyote Hills

  Sat Jan 30 · 7:30 AM · Fremont · East Bay

  5K10KHalf marathon

  from $63Goes up Nov 9
• Sat30Jan

  Run for Donut San Francisco

  Sat Jan 30 · 7:30 AM · San Francisco · San Francisco

  1 mile5K10KHalf marathon

  from $30
• Sat30Jan

  Race to the Flagpole

  Sat Jan 30 · 8:45 AM · Livermore · East Bay

  1 mile5K10K

  from $15Goes up Dec 25
• Sat6Feb

  Golden Gate Trail Run

  Sat Feb 6 · 7:50 AM · Sausalito · Marin

  2 miles8KHalf marathon30KMarathon50KTrail

  from $60Goes up Jan 31
• Sun7Feb

  Kaiser Permanente San Francisco Half Marathon & 5K

  Sun Feb 7 · San Francisco · San Francisco

  5K10KHalf marathon

  see site
• Fri12Feb

  Concord 5000

  Fri Feb 12 · 5:30 PM · Concord · East Bay

  5K

  from $20
• Sat13Feb

  Run for Chocolate 5K/10K/13.1 San Francisco

  Sat Feb 13 · 7:30 AM · San Francisco · San Francisco

  1 mile5K10KHalf marathon

  from $30
• Sat13Feb

  Valentine's Day Run 5K/10K/13.1 San Francisco

  Sat Feb 13 · 7:30 AM · San Francisco · San Francisco

  1 mile5K10KHalf marathon

  from $30
• Sat20Feb

  Montara Mountain Trail Run

  Sat Feb 20 · 7:45 AM · Pacifica · Peninsula

  2 miles10KHalf marathon20.7 milesMarathon50KTrail

  from $60Goes up Feb 14
• Sat20Feb

  Beer City Half™ Santa Rosa

  Sat Feb 20 · 8:30 AM · Santa Rosa · Napa & Sonoma

  1 mile5K10KHalf marathonTrail

  from $25Goes up Nov 23
• Sat27Feb

  Run For Mental Health San Francisco

  Sat Feb 27 · 7:30 AM · San Francisco · San Francisco

  1 mile5K10KHalf marathon

  from $30
• Sat27Feb

  Run Together Against Breast Cancer San Francisco

  Sat Feb 27 · 7:30 AM · San Francisco · San Francisco

  1 mile5K10KHalf marathon

  from $30
• Sun28Feb

  Zoom Angel Island

  Sun Feb 28 · 9:50 AM · Tiburon · Marin

  2 miles5 miles10 miles15 milesTrail

  from $60Goes up Feb 21

• Fall 202650 races
• Spring 202736 races
• Summer 202717 races

Quick answers

How many races are near the Bay Area in winter 2026-27?

34 races are listed near the Bay Area in winter 2026-27. The first is Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run on Saturday, December 5 in Alameda, and the last is Zoom Angel Island on February 28.

What is the cheapest race near the Bay Area in winter 2026-27?

Race to the Flagpole on January 30 has the lowest listed entry fee: $15. Prices are before the registration platform's processing fee.

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

Brazen New Year's Eve: the 5K goes from $68 to $73 after October 25. 14 more of these races publish a later price increase.

Are there half marathons or marathons near the Bay Area in winter 2026-27?

Yes: 22 half marathons and 3 marathons. The first is Peacock Gap Trail Run on December 5.