Run Against Breast Cancer 5k 10k & 13.1

Saturday, December 2, 2023 San Francisco, CA

Run Against Breast Cancer 5k 10k & 13.1- San Francisco, CA

Amidst the iconic landmarks of San Francisco, a unique running experience unfolds on December 2. The city by the bay is not just a backdrop but a symbol of unity in the fight against cancer. The 5K, 10K, and 21K Half Marathon races offer runners various challenges, all of which are bound by a shared purpose.

This run is more than a personal achievement; it’s a collective effort to make a tangible impact. A portion of the run proceeds, alongside 100% of the fundraising, is channeled to the American Cancer Society, a formidable force in the battle against cancer in the United States.

The excitement for this event is evident, with waves filling up quickly. This small, private group run is meticulously capped at 15 participants per wave, ensuring an intimate and connected experience for all. Runners of all ages and paces are encouraged to participate, including those under 18 with a guardian.

This run simplifies the sport. It isn’t about complicated equipment or grandiose setups; it’s about the purity of running. The timing stress is removed, as there are no timing chips to manage. Yet, if you seek to keep track of your performance, friendly coordinators are available to assist using bib numbers distributed on race day.

Your swag bag serves as a testament to your achievement. It includes a premium running shirt and a finisher’s medal, both symbols of your dedication to the cause. Beyond race day, access to a virtual community of runners keeps the connection alive, making this event more than just a run, but a lasting journey.

The inconvenience of packet pickups is eliminated, with swag conveniently shipped to your address, provided you’ve furnished your complete US mailing address. On race day, your race bib will be issued, and the week of the race, your shirt and medal will be at your doorstep, ensuring the memories of this meaningful run are never far away.

Race Weather & Climate

Located on the Pacific Coast, San Francisco, California, boasts world-renowned attractions.

December 2nd in San Francisco, CA, marks the start of the winter season with average high temperatures of 59-63°F and average low temperatures of 49-53°F. It’s a time of cool and crisp weather, reflecting the early winter. Rainfall during this period is typically minimal, creating a chilly yet dry early winter atmosphere in the city.

Starting Time

The half marathon start time is 7:30 AM PST.


To reserve your spot in the 2023 Run Against Breast Cancer 5k 10k & 13.1, you can use the registration link here.

Race Fees

  • There is a $40.00 fee for the half marathon.
  • There is a $35.00 fee for the 5k.
  • There is a $37.00 fee for the 10k.

Run Against Breast Cancer 5k 10k & 13.1 Race Website

Run Against Breast Cancer 5k 10k & 13.1 Website

See more races in: December, California