Logo

Many On The Genny

Mount Morris, United States • 20 Jun 2026

About the Event

This is a 45-mile trail ultramarathon held within Letchworth State Park, known for its famous gorge. The course uses trails on both sides of the gorge.

The route is entirely on trails. Runners will travel on single-track paths, fields, footbridges, and bridle paths. The course offers scenic views and steep climbs.

The event emphasizes self-sufficiency for runners. There are five fully stocked aid stations and one water stop along the 45-mile course. Distances between some aid stations can be up to 8-9 miles in remote trail sections.

The event offers two participation formats: a 45-mile solo run and a relay option. Visit the organization's website for the most recent information.

United States New York Mount Morris

Race information

Website Registration
Many on the Genny Relay
45 Miler
Visit the organization's website for the most recent information.
Trail runs nearby

Muddy Sneaker 20K Trail Run

Naples

The Muddy Sneaker is a 20K trail run in New York's Hi Tor Wildlife Management Area. Known for its rapid elevation changes, runners face a course with natural obstacles. Registration is capped at 200 with no waitlist.

Run Our Trails

Honeoye Falls

Event Overview Run Our Trails is a series of six trail races held on the last Tuesday of each month from April through September in Mendon Ponds Park, Honeoye Falls, New York. Each race features a different trail route and distance within t..

Medved Madness Trail Races

Honeoye Falls

Medved Madness is a spring trail running party in Mendon Ponds Park. Choose from a long or short course trail race, and enjoy a post-run barbecue feast. All adult participants receive a technical t-shirt.

Sehgahunda Trail Marathon

Mount Morris

...

A two-day race weekend at Letchworth State Park featuring a 26.3-mile trail marathon with relay options, three out-and-back falls races, and a 72 km challenge, with aid stations, event shirts, and finisher medals for each race.