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4K Trail Run

Wed May 21 - Thu May 22, 2025 Boston, MA 02210 US

Events

Wednesday 4K Trail Run - Individual Registrations

$95 Registration Opens January 6, 2025 at 9:00am EST
Includes Post-Race BBQ & Beer!

Wednesday 4K Trail Run - Team Registrations

$0 Registration Opens January 6, 2025 at 9:00am EST
Open to ages 21+.

Thursday 4K Trail Run - Individual Registrations

$95
5 spots left. Registration Opens January 6, 2025 at 9:00am EST
Includes Post-Race BBQ & Beer!

Thursday 4K Trail Run - Team Registrations

$0 Registration Opens January 6, 2025 at 9:00am EST
Open to ages 21+.

Description

The 4K Trail Run is the most unique race in Boston! Taking place on Cathleen Stone Island in the Boston Harbor, teams and individual runners will enjoy an afternoon and evening with their coworkers and friends. After a short ferry ride (~30 minutes) to the island, the event will kick off with a 4K race through the island and end with dinner, beer, and an on-island party.

Every dollar raised from the 4K Trail Run supports Cathleen Stone Island's mission to deliver free, hands-on science learning to Boston's youth. The 4K Trail Run is an excellent way to invest in education of Boston youth and is our most popular corporate fundraising event. This year’s 4K Trail Run will take place on Wednesday, May 21st, and Thursday, May 22nd, 2025 (Teams and runners must select one day to participate).

Race Website

Additional race information can be found at https://cathleenstoneisland.org/support/fundraising-events/4k-trail-run.

Race Contact Info

If you have any questions about this race, click the button below.

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