Mountain Lakes Backyard Ultra will not take place in 2024.  This is a tentative date for 2025.

The Mountain Lakes Backyard Ultra, presented by Steep Endurance, set in Mountain Lakes Park, just 90 minutes from NYC, is a true test of ones endurance, persistence, and discipline. The premise is quite simple. Can you run 4.167 miles in ONE hour? And do it again and again and again….until you are the LAST RUNNER STANDING!   The current record is 32 hours.