Three residents from Alexandria will be among more than 6,000 riders participating in the 211-mile Pan-Mass Challenge on Aug. 7 and 8. The Pan-Mass Challenge is a bike-a-thon raising money for cancer research and patient care at Dana-Farber Cancer Institute. The fundraising goal of the 2021 event is $52 million. According to patch.com, "Riders have the option of 16 routes between 25 miles to the full 211 miles, designed for all levels of cycling and fundraising. The "Reimagined" option allows riders to complete their Pan-Mass Challenge on their own. The 6,000 riders and counting include 26 from Virginia. The Alexandria riders are Dave Knight, Christie Mandeville and Aaron Weis." As per patch.com, "The ultimate goal of the Pan-Mass Challenge is to provide resources to doctors and researchers to find a cure for all cancers. Many riders participate in honor of family or friends fighting cancer, and over 950 riders are cancer survivors or current patients. In addition, 150 of the Dana-Farber Cancer Institute employees contribute to the cause as riders or volunteers."