The Next Loop Endurance Series - New England

APR
11
2026
A loop format endurance event in Wrentham MA on April 11 2026. Runners complete a 3.1 mile (5K) trail loop each hour and every finished loop is timed and counts toward a combined result.
Sat 11 Apr 2026
50 Miles (16 Loops of a 3...

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The Next Loop Endurance Series - New England

The Next Loop Endurance Series - New England takes place on April 11, 2026 in Wrentham, Massachusetts, at 431 South Street. The event uses a loop format built around a 3.1 mile (5K) trail loop with a new loop starting every hour.

Participants decide after each loop whether to run another loop or stop. Every completed loop is officially recorded and counts toward the participant's result. There are no penalties for stopping and no missed cutoff failures for this format.

Timing is official for every completed loop. Individual loop times are recorded and combined to produce an overall score. Results are ranked first by loops completed and then by combined time for those loops.

The course is a clearly marked trail loop with the start and finish located at a central base area. An aid station is available each hour. The event notes that it accommodates a range of athletes and that data from loop splits can be used to analyze pacing and recovery across multiple hours.

Distances available through completed loops include:

  • 1 Loop = 5K
  • 2 Loops = 10K
  • 4 Loops = Half Marathon
  • 9 Loops = Marathon
  • 10 Loops = 50K

The event description identifies target participants as runners at various levels, athletes training for longer events, and functional athletes interested in measured recovery and consistency. Visit the organization's website for the most recent information.

50 mi
50 Miles (16 Loops of a 3.1-Mile Trail Loop)