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June 3rd  |  June 17th  |  July 8th  |  Aug 5th  |  Aug 19th  |  Sep 2nd  |  Sep 16th

Join us on seven Thursday evenings from June through September for fun, friendly, chip-timed 5K runs to kick cancer’s butt. Each (of the first six dates) starts with a Women’s 5K, followed by the Open 5K ~30 minutes later. (no Women's 5K on Sep. 16th)

All races are held at the DCR’s Herter Park on Soldiers Field Road, and run on paths along the Charles River. Each event will include a post-race party at TBD with beer generously provided by our brewery partners. 100% of the event proceeds go to charity. RACE Cancer Foundation’s Boston 5K Summer Series provides funding for the Sunscreen Squad, bringing free sunscreen to running events across Massachusetts.

Sign up for each 2021 Boston 5K Summer Series race at!