Bay to Breakers 12K
The Lowdown
Bay to Breakers 12K is a point-to-point road race that runs from the Embarcadero in downtown San Francisco to Ocean Beach on the Pacific coast, tracing the width of the peninsula. First run in 1912, it is one of the oldest continuously held annual footraces in the United States and has grown from a small footrace into a citywide costume party: elaborate individual costumes, themed running clubs, and the signature 13-person Centipede teams are as much a fixture as the race itself. The course climbs the short but steep Hayes Street Hill near Alamo Square around the 2-mile mark, then flattens through the Panhandle and Golden Gate Park before finishing on the sand-dusted Great Highway at Ocean Beach. The race set the Guinness World Record for largest footrace with roughly 110,000 participants in 1986, and modern editions still draw tens of thousands of runners, walkers, and spectators lining the closed streets. Beyond the 12K, Bay to Breakers also offers a 15K "Breakers Bonus" option and team entries; race weekend includes a shakeout run and community events around San Francisco. With chip timing, a finish line festival, and a laid-back, anything-goes atmosphere, it remains one of San Francisco's defining annual traditions.
Race Day
Weather Forecast
Elevation
Terrain Profile
Relatively flat course
Participants
Field Size
Major marathon
Crowd Rating
Spectator Support
Excellent spectator turnout
The Embarcadero
Hayes Street Hill
Alamo Square
Golden Gate Park (JFK Drive)
Ocean Beach / Great Highway
San Francisco, California, United States
US
Average rate for 3-star accommodations near the start line
Eligibility
- Open to all ages; strollers are not permitted on the course
- Centipede teams must run in costume as a linked group, typically 13 members
Required Documents
- Photo ID for bib pickup
Entry Methods
- Online registration via the official website
- Centipede team registration for themed groups
Cancellation & Refund Policy
All registration fees are non-refundable per official policy
Known for elaborate costumes and the signature 13-person Centipede running formation
Set the Guinness World Record for the largest footrace with about 110,000 participants on May 18, 1986
One of the oldest continuously run annual footraces in the United States, dating to 1912
A 15K "Breakers Bonus" distance option and team/Centipede entries are also offered alongside the 12K
Community
Stories, tips, and race-day snapshots from runners who have tackled this course.
Community Reviews
Learn from fellow runners and share insights that will help the next person toe the line.

