Race Details Event Date 05/25/23 Race start time(s) 5:30 PM Event Location Thompson Island, Boston Harbor Event Address 1 Long Wharf Event City Boston Event State MA Race ID 439 Google map address Event Information Registration URL https://runsignup.com/Race/MA/Boston/ThompsonIsland4kTrailRun Course Map Course map Website https://thompsonisland.org/support/fundraising-events/4k-trail-run/ Social Media Instagram USATF Cert. No. Uncertified Results Online Results Athlinks Older Results 2006, 2005, 2002GSRS Results Archive Recent Results 2023202320222022202120212018201820172017201620162015 Race comments Race not held in 2020.