Cambridge Half Marathon + 5K Challenge

JOIN THE AMERICAN CANCER SOCIETY'S TEAM DETERMINATION FOR THE 2026 CAMBRIDGE HALF MARATHON!

Taking part in this event gives you the chance to make a difference and honor those touched by cancer by raising funds for groundbreaking research AND services for people facing cancer. Participants who join our team will receive a set of amenities for their fundraising including:

• T-shirt to run in
• 'I'm Running For' bib and ribbons to help you dedicate your run
• Refunded registration upon hitting your $1,500 raised
• American Cancer Society DetermiNation items
• PLUS a training plan if requested!

Want more information, have questions, concerns, etc.? Email Paul.Purdy@cancer.org!  We hope to see you on the course rocking an ACS shirt in Cambridge this November!       

FUNDRAISING MINIMUMS:

Charity bibs are available for all race weekend races: 

5K charity bib - $500 minimum fundraising requirement 
Half Marathon charity bib - $1500 minimum fundraising requirement
The Challenge charity bib - $2000 minimum fundraising requirement 

All charity runners have the option of opting into an automatic registration fee refund if they raise double their minimum. 

Donations towards the fundraising commitment are due by 11/8/2026 @ 11:59PM. Credit cards will be charged for the difference in commitment on 11/9/2026. 

                                    Every Cancer. Every Life.

We are a leading cancer-fighting organization with a vision to end cancer as we know it, for everyone. We are improving the lives of people with cancer and their families as the only organization combating cancer through advocacy, research, and patient support, to ensure that everyone has an opportunity to prevent, detect, treat, and survive cancer. 

DetermiNation is the American Cancer Society’s event endurance program, spanning a variety of sports including cycling, running, hiking, yoga, and more. The collective efforts of the dedicated athletes who use their fortitude to help raise funds to take down cancer are nothing short of amazing.

When you join DetermiNation, you’re not just participating in an endurance event. You’re pushing yourself to help save lives from cancer. Just like hard work goes into your event training, the American Cancer Society gives it our all through things like breakthrough research, patient programs and services, and a free 24/7 cancer helpline. Together, we’ll tackle every course, rally every community, and stay absolutely relentless in the fight against cancer.