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The Pan-Mass Challenge Is This Weekend. Here's What To Know About The Routes, Fundraising And More.

The Pan-Mass Challenge is made up of 14 routes ranging from 25 to 186 miles.

(CBS Boston)

August 1, 2025 / 6:16 AM EDT

The 2025 Pan-Mass Challenge, an annual bike-a-thon that has become the largest single athletic fundraiser in the U.S., is happening in Massachusetts this weekend.

Find out what's happening in Across Massachusettsfor free with the latest updates from Patch.

More than 6,500 cyclists and 3,500 volunteers are coming together to raise millions of dollars for the Dana-Farber Cancer Institute in Boston.

The Pan-Mass Challenge is made up of 14 routes ranging from 25 to 186 miles.

Find out what's happening in Across Massachusettsfor free with the latest updates from Patch.

Riders depart from Stubridge or Wellesley to Bourne on Day 1/CBS Boston

The Day 2 ride from Bourne to Provincetown/CBS Boston

Click here for the full story via CBS Boston


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