The Next Loop Endurance Series - New England

APR
11
2026
The Next Loop Endurance Series features a repeating 5 km trail loop starting each hour. Runners decide after every lap whether to continue, with no penalty for stopping. The flexible format allows everyone from beginners to ultra runners to set their own distance goal.
Sat 11 Apr 2026
10k 1/2 Marathon Marathon 50k

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Event Overview

The Next Loop Endurance Series is a running event based on a repeating loop format. Participants run a 3.1-mile (5 km) trail loop that starts every hour on the hour. After completing each loop, runners can decide whether to start the next one or stop.

Scoring and Format

The event uses a scoring system that records the time for each individual loop completed. Times are combined for a total score. There are no penalties for stopping, and only completed loops are counted. This format is designed to allow athletes of different experience levels to participate.

Course and Event Details

The course is a scenic, clearly marked trail loop. The start and finish area is a central base camp. An aid station is available each hour. The event atmosphere is described as family and crew friendly.

Potential Distances

The distance completed depends on the number of loops run. Common benchmarks include:

  • 1 loop = 5 km
  • 2 loops = 10 km
  • 4 loops = Half Marathon
  • 9 loops = Marathon
  • 10 loops = 50 km

Participants are not locked into a predetermined distance; they can decide after each loop. Visit the organization's website for the most recent information.

50 km
50k
Marathon
Marathon
Half Marathon
1/2 Marathon
10 km
10k
5 km