Hill to Hollow 100km
Tully, United States • 19 Sep 2026
Hill to Hollow 100km : Tully, NY
The Hill to Hollow 100km takes place on Saturday, September 19, 2026, in Tully, New York. The start and finish are at Spruce Pond in Morgan Hill State Forest. Distances offered:
- 100 km Solo
- 100 km Relay
Course, logistics, and rules
The routed course is about 63.7 miles with roughly 10,286 feet of elevation change. The route uses mostly single-track trails and passes through Morgan Hill State Forest, Highland Forest County Park, Muller Hill State Forest, Mariposa State Forest, and past DeRuyter Reservoir and Chippewa Falls. The race is a UTMB Index event and runs at the same time as the Morgan Hill Trail Races half marathon and marathon.
There are 7 aid stations (excluding start/finish). Aid station food and drink include water, Skratch, ice if needed, fruit, salty snacks, PB&J, cookies, candy, and a limited selection of hot foods at Aid Station 7. Soft cutoffs are in place at aid stations and there is a hard cutoff of 20 hours.
Pacers are allowed for 100 km runners after about mile 33; one pacer per runner at a time. Pacer and relay exchanges are allowed only at aid stations. Crews may access aid stations but road conditions may limit low-clearance vehicles; crew assistance on course is allowed provided vehicles do not park on private property.
Required gear includes a charged cell phone kept on with race director number saved, an offline-capable navigation device with the course GPS loaded, headlamp and spare batteries, reflective vest, emergency blanket, waterproof shell with hood, a water filtration device, at least 800 mL fluid capacity, and a minimum 400 kcal food reserve. Refunds are not offered; limited deferrals are available for pregnancy, injury, or volunteer service. Visit the organization's website for the most recent information.