12 Hours of Lawrence Woods

Come out and enjoy a half day of the most underrated section of the Middlesex Fells Reservation, Lawrence Woods!
This is a 12 hour event that will start at 8am and go until 8pm. Get to the Fells however you want, if driving, you should park in the high school lot The course is a 5ish mile loop around Lawrence Woods that doesn't cross over (it shares an intersection with opposing turns). There will be a very minimal aid station (water, some sort of candy, and a sugary drink) so bring a bag and a chair and feel free to setup your own little spot (we'll make room). The start/finish/aid station will be in the woods, about a quarter mile from the high school lot (there will be signs and a map). If you don't want to run, come hang out and maybe volunteer!

Course on Strava: https://strava.app.link/Xx4nCiXK8Tb

Schedule:
7:00am: registration/bib pickup
7:50am: pre-race briefing
8:00am: course opens
7:15pm: last chance to go out for a lap
8:00pm: end of event

Upcoming Races

Jul 18 2026
12 Hours
4.5 mile loop with 500ft of gain
Multiple Loop
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts

Results

12 Hours

Date Finishers Top Result (F) Top Result (M)
07/19/25 20 58.5 58.5

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