Hill to Hollow 100km

SEP
19
2026
Read all about the Hill to Hollow 100km on 19 Sep 2026 in Tully.
Sat 19 Sep 2026
100 kilometers

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Event Overview

The Hill to Hollow 100km is an ultramarathon event taking place in Tully, New York. It offers both a 100km solo and a 100km relay option. The course begins and ends at Morgan Hill State Forest, where camping is available. It traverses four counties and is primarily run on single-track trails.

Course Description

The route follows the Onondaga Trail and North Country Trail. It passes misty ponds, vistas, and waterfalls. It includes the highest point in Onondaga County and travels through several state and county forests, including Morgan Hill, Highland Forest, Muller Hill, and Mariposa. The course passes landmarks such as DeRuyter Reservoir and Chippewa Falls. The total distance is approximately 63.7 miles with an elevation change of about 10,286 feet.

Race Details

The event has a 20-hour hard cutoff time. There are seven aid stations along the course, plus a start/finish area at Spruce Pond. Aid stations offer water, Skratch sports drink, orange slices, bananas, pickles, PB&J sandwiches, potato chips, pretzels, Oreos, and candy. A limited selection of hot foods like ramen, grilled cheese, and pierogi is available at one aid station. All runners receive a pair of SCTR socks. Prizes are awarded to top finishers in each gender division and for the fastest relay team.

Participant Requirements

The event is described as challenging, requiring self-sufficiency. Strong navigation skills are essential due to a lack of 5G/LTE network coverage in the area. Required gear includes a fully charged cell phone (with the race director's number saved), an offline-capable navigation device with the course loaded, a headlamp with extra batteries, a reflective vest, an emergency blanket, a waterproof shell with a hood, a water filtration device, and at least 800mL of liquid storage capacity with a 400 kcal food reserve.

Pacers are allowed for solo 100km runners after approximately mile 33. Crews are permitted at all aid stations, with access possibly limited for low-clearance vehicles.

Relay Information

For the 100km relay, each team member must complete at least one leg. Teams are responsible for allocating the eight legs amongst themselves. Leg distances range from 6.5 to 8.9 miles.

Additional Information

The race is Trail Sisters approved and is a UTMB Index event. It takes place concurrently with the Morgan Hill Trail Races Half Marathon and Marathon. The organizers acknowledge the work of various land management organizations and trail associations. Visit the organization's website for the most recent information.

100 km
Hill to Hollow 100km Relay
100 km
Hill to Hollow 100km Solo