Boston Half
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Boston Half : November 9, 2025
The Boston Half is a half marathon presented by Dana-Farber Cancer Institute and the Jimmy Fund and will be held on Sunday, November 9, 2025. The event has a field size limit of 9,000 entrants. General registration opened on July 7, 2025 within the B.A.A. online platform Athletes' Village on a first-come, first-served basis and later reached capacity. The registration fee for 2025 was $100.00 USD. Entries are non-transferrable, non-deferrable, and non-refundable. Entrants must be 14 years old on race day. All athletes receive an adidas Boston Half participant shirt, race day amenities, and a unicorn finisher medal.
Course and recent figures
The race starts and finishes in Franklin Park and follows the Emerald Necklace Park System, passing the Arnold Arboretum, Jamaica Pond, Willow Pond, and Olmsted Park. In 2024 the event had more than 6,700 finishers. Team Dana-Farber fundraisers raised more than $800,000 at the 2024 race, with 670 Team Dana-Farber fundraisers and over $10 million raised collectively by Dana-Farber runners since the partnership began. Visit the organization's website for the most recent information.