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Philadelphia Marathon Weekend

November 21-23, 2025

The 26.2 mile AACR Philadelphia Marathon is now sold out, but a waitlist is available for signup (there is no guarantee you will be accepted for the 2025 AACR Philadelphia Marathon). A credit card will be required to secure your place on the waitlist, but you will not be charged until a slot is available. (sign up for the waitlist)

For guaranteed entry (while bibs are available) you may run for AACR Runners For Research or see one of the official charity partners who may have bibs available for fundraisers. Contact them directly to learn more about guaranteed entry through their respective fundraising programs.

Finally, a limited supply of Independence, Liberty Bell or Freedom challenges are available should you wish to register for a multi-event package.

Note: We do not allow the transfer of bibs between individuals – any offer to sell you a bib is not valid.

Events

Challenges

View All Events and Challenges

Our Races:
Fast and Scenic

Our beautiful, fast and scenic course takes athletes past historic landmarks, through urban neighborhoods, and along Philadelphia's picturesque waterfronts. Join over 30,000 athletes on race weekend! USATF certified and Boston qualifier event. Learn more

Shop 2025
In Training Gear

Round out your race wardrobe with In Training gear and race merchandise from the 2025 Philadelphia Marathon Weekend. Be sure to look your best as your prepare for November 2025. (shop today!)

American Association
For Cancer Research

The AACR is the world’s first and largest cancer research organization dedicated to the prevention and cures of cancer through research, education, and advocacy. Learn more. Pictured: Ebony Mason, Cancer Survivor and AACR Runner for Research.

Storyboard Maps

 

For the sixth year in a row, the American Association for Cancer Research (AACR) is proud to work alongside the City of Philadelphia to promote health, wellness, and community collaboration. Learn more about this Philadelphia-based organization dedicated to advancing cancer research and its mission to prevent and cure cancer.

[ Learn more ]

Our Partners

American Association for Cancer Research

ASICS - sound mind, sound body