Jug End Loop Ultra

AUG
22
2026
A timed six hour ultramarathon on a 4.2 mile loop at Jug End State Reservation in Egremont, MA. The wooded course includes fields and an apple orchard and benefits the Louison House.
Sat 22 Aug 2026
4 miles

Always double-check with the organizer's website! This page may contain affiliate links.

Jug End Loop Ultra

The Jug End Loop Ultra takes place on August 22, 2026 at Jug End State Reservation in Egremont, MA. The event is a six hour timed event based on repeated laps of a marked 4.2 mile loop on the Jug End Loop Trail, including the upper loop. Parking may be easier from Guilded Hollow Road where a parking lot connects out to Jug End Road.

Distances

  • 4.2 miles loop per lap
  • 0.75 miles mini loop used in the final hour

The course runs through woods, fields and an apple orchard. Each full lap contains approximately 2.1 miles of uphill and 2.1 miles of downhill and about 830 feet of elevation change per lap. No partial laps will be scored and incomplete 4.2 mile laps do not count after the six hour cutoff. A shorter mini loop will be available in the final hour to allow completion of common milestone distances.

Registration details note an early bird period ending December 1 and regular fees thereafter. Runners aged 18 and under register at half price with code SUPERKID. Teachers, active and retired service members, and first responders may use code SERVICE! for a 10 percent discount.

This year the event benefits the Louison House in North Adams, MA. The 4.2 Mile John G Memorial Run will donate profits to Dana Farber. Awards include overall male and female winners, expanded age group prizes, a handmade 16 oz ceramic finisher mug, and handmade awards for event champions. Organizers are submitting documentation for DCR approval to hold the race for its 11th time. Visit the organization's website for the most recent information.

4 mi
4.2 Mile John G Memorial Run
Mini Jug Loop
6-Hour Ultra Event
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.