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March 29, 2026

Sleeping Giant Trail Runs

Hamden, CT
Distances: 50K25K

About This Race

The Sleeping Giant Trail Runs in Hamden, Connecticut, is a grueling ultramarathon that takes place in the rugged traprock landscape of Sleeping Giant State Park. Competitors tackle a 25K loop—doubled for the 50K distance—renowned for its punishing 3,000+ feet of vertical gain per loop and technical, rocky singletrack.

What Makes It Unique

  • The Head Wall Climb: A legendary 0.3-mile rock scramble where runners must ascend over 500 feet of vertical elevation in one of the steepest sections of the course.
  • Anatomical Navigation: The course traverses a mountain formation that resembles a massive human figure in repose, with trails that cross through the 'head,' 'chest,' 'knees,' and 'feet' of the Giant.
  • Observation Tower Summit: Runners reach the highest point of the race at a historic stone observation tower, offering expansive views of the surrounding Connecticut landscape and Long Island Sound.