#RACEEVERYTHING
KICKING CANCER IN THE @$$, ONE RACE AT A TIME.
FEATURED EVENT:
Boston 5K Spring & Summer Series
June 4, 2026
Eight Thursday nights. One mission: kick cancer’s butt. Join us April–September along the Charles River for fun, fast, friendly, chip-timed 5Ks—then stick around for a great post-race party at the Marsh Post, with pizza and beer from Mighty Squirrel included. Each date features a co-ed Open 5K, with a dedicated Women’s 5K kicking off the first four spring dates. (more)
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Sep 13, 2026
The 2nd annual Charles River Marathon Invitational (CRMI) is held on the same course as the Charles River Marathons, but geared towards runners who've completed a marathon within 20 minutes of their BQ time since Jan 1, 2024.
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