December 2026 races in San Francisco Bay Area
There are 9 running events listed in San Francisco Bay Area for December 2026 — 8 5K, 7 10K, 5 Half Marathon, 1 Marathon, 1 Trail Run — starting with Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run on Sat, Dec 5, 2026. Every listing shows the date, venue, and distances, with a direct link to registration.
- Sat, Dec 5, 2026 Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run 5K10K Road
- Sat, Dec 5, 2026 16th Annual Reindeer Run/Walk 5K10K Road
- Sat, Dec 12, 2026 Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO 5K10KHalf Marathon Road
- Sat, Dec 12, 2026 Sunrise Marathon 5K/10K/13.1 SAN FRANCISCO 5K10KHalf MarathonMarathon Road
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Sat, Dec 12, 2026 Summit Rock 5K10KHalf Marathon Road - Sun, Dec 13, 2026 Silicon Valley Santa Run 5K Road
- Sat, Dec 26, 2026 A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO 5K10KHalf Marathon Road
- Sat, Dec 26, 2026 New Year's Run 5K/10K/13.1 SAN FRANCISCO 5K10KHalf Marathon Road
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Thu, Dec 31, 2026 New Year's One Day Trail Run Trail
Quick answers
How many races are there in San Francisco Bay Area in December 2026?
9 running events are listed in San Francisco Bay Area for December 2026, from Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run on Sat, Dec 5, 2026 to New Year's One Day on Thu, Dec 31, 2026. Every listing links directly to registration.
What distances can I race in San Francisco Bay Area in December?
The December 2026 calendar in San Francisco Bay Area includes 8 5K, 7 10K, 5 Half Marathon, 1 Marathon, 1 Trail Run.
What is the first race of December 2026 in San Francisco Bay Area?
Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run on Sat, Dec 5, 2026 at 215 Adelphian Way.
Racing San Francisco Bay Area in December?
Get new San Francisco Bay Area races twice a month plus a heads-up before registration prices jump.