Explore, enjoy, and protect the planet

Bay Bridge Half Marathon

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    Bay Bridge Half Marathon Start My Journey

This is not just any race – we're in a race to save our one and only planet. Join Team Sierra at the 2021 Bay Bridge Half Marathon on May 2, 2021 (postponed from May 3, 2020) to do what you love while helping to ensure a livable home for us and future generations.

Stronger and more frequent natural disasters. A lack of clean air and safe drinking water in our most vulnerable communities. Various reports outlining irreversible damage to our planet. It's clear that the climate crisis is not just one of the greatest threats we face. It's already here: People around the country and world are being impacted by our warming planet every day.

We also know we can do something about it. Tackling this global threat will take ambitious goals and plans – and luckily, we know that Team Sierra teammates thrive on big goals and hard, meaningful work.

Entries are very limited and are first-come first-served to those who commit to raising $1,000 for Sierra Club.
So join Team Sierra in Oakland and cross the finish line knowing you made a real impact raising critical funds to protect our planet. 



Do what you love. Raise funds. Save our planet.



When you register, you'll get your own personal fundraising page, access to our fundraising toolkit, and personal coaching.


Social media, email, creative stunts — there are lots of fun ways to get friends and family involved to meet the $1000 fundraising minimum.


Join fellow planet-protectors on the race course in May 2021 and celebrate the difference you made!







The only half marathon to cross the new Bay Bridge. Team Sierra runners will join Oakland Run Co. for this sure-to-sell-out race. Start out in West Oakland and head towards the Bay Bridge, where you'll run across, turnaround and do it all over again! Enjoy views of San Francisco Bay, Alcatraz, and the skylines of both Oakland and San Francisco. And the race is cupless, reducing waste for all you planet-protectors out there!

The inaugural, sold-out Bay Bridge Half Marathon, which made history in 2019 as the first-ever half marathon across the iconic Bay Bridge, was named a Challenge Awards finalist and took 3rd Place in the Best International Running Event by Runner’s World and Let’s Do This.

Post-race, enjoy tacos, a private label beer, and exploring downtown Oakland! For more details on the course, schedule, lodging, and history of the race, visit the race website






It's clear that the climate crisis is not just one of the greatest threats we face: it's already impacting the people and places we love. Our air, water, and home are threatened — and it's time to act.


The crisis may feel daunting, but we can do something about it.


We know that Team Sierra teammates thrive on big goals and meaningful work. In 3 short years, we've raised over $1 million dollars to support the Sierra Club — the nation's largest grassroots environmental organization — and its work protecting wildlife and wild places, advancing clean energy solutions, and making the outdoors more accessible.


Individual Fundraising Minimum: $1000


Get Started


  Not ready to sign up? Want to see what other races you can be a part of? Leave your info here and someone from our team will reach out to help answer any questions!




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