12 Hours of Lawrence Woods
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12 Hours of Lawrence Woods - July 18, 2026
This is a 12 hour trail event held in Lawrence Woods, a section of the Middlesex Fells Reservation in Medford, MA, on July 18, 2026. The event uses a roughly 5 mile loop through the woods. The loop does not cross over itself though it shares an intersection where opposing turns meet.
The start, finish, and aid station are located inside the woods about a quarter mile from the high school parking lot; participants typically use the high school lot for parking. The provided aid is minimal and includes water, some candy, and a sugary drink. Participants may bring their own bag and chair and set up a personal station near the course while space is made for that.
On-site services associated with the event include registration and bib pickup plus a pre-race briefing. There is also an opportunity to volunteer or attend as a spectator without running. A course record or external course file is listed publicly for reference. Visit the organization's website for the most recent information.
