Hill to Hollow 100km

SEP
19
2026
A 100 km trail race around Morgan Hill State Forest near Tully, NY, covering about 63.7 miles and 10,286 feet of climb. The event features seven aid stations, required offline navigation gear, and an option to race as an eight-leg relay.
Sat 19 Sep 2026
100 kilometers

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Hill to Hollow 100km

Hill to Hollow 100km is a point-to-point trail event held near Tully, NY, beginning and ending in Morgan Hill State Forest with camping available. The course covers about 63.7 miles and includes roughly 10,286 feet of elevation change while crossing four counties and using nearly all single-track trail, including sections of the Onondaga Trail, North Country Trail, and Finger Lakes Trail.

Distances

  • 100 km Solo
  • 100 km Relay

There are seven staffed aid stations excluding the start and finish. Aid station food and drink options include water, electrolyte drink, fruit, sandwiches, snacks, and a limited selection of hot food at one station. All finishers receive event socks and awards are given to top finishers by division and to the fastest relay team.

Runners must be self-sufficient and able to navigate without mobile network coverage. Required gear includes a charged cell phone with the race director number saved, an offline navigation device with the course GPS file, headlamp with spare batteries, reflective vest, emergency blanket, waterproof shell with hood, water filtration device, at least 800 mL of liquid capacity, and a reserve of at least 400 kcal. Pacers are allowed for solo 100 km runners after about mile 33, with one pacer at a time and changes permitted only at aid stations. The race is Trail Sisters approved and is an UTMB Index event. Visit the organization's website for the most recent information.

100 km
100km Solo
100 km
100km Relay
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