NYC 50k - Stair Set of Doom Ultra

APR
18
2026
Experience an urban ultra marathon across four NYC boroughs featuring 90 stair sets and six bridges. This self supported 33.3 mile adventure includes 3,500 feet of elevation gain through 16 different parks and city streets.
Sat 18 Apr 2026
33 miles

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NYC 50k - Stair Set of Doom Ultra

The NYC Stair Set of Doom Ultra is an annual event that takes participants on a course covering over 33.3 miles through the urban landscape and natural areas of New York City. The route traverses city streets, 16 different parks, and various dirt trails, offering a view of the city’s neighborhoods and landmarks.

The course is characterized by significant physical demands, including more than 3,500 feet of elevation gain. Participants must navigate 90 separate stair sets of varying sizes and cross six different bridges. The route spans across four of the city’s boroughs, providing a diverse range of terrain and environments.

This event is unsanctioned and primarily self-supported. While the organizers provide an aid station, participants are expected to manage their own water and nutrition. Public restrooms are available and marked along the route. Registered participants receive a course map and specific route instructions prior to the start.

Distances available for this event:

  • 33.3 miles

The event concludes with a gathering at Broadstone Bar and Kitchen. Participants who complete the course receive a finisher t-shirt, and a prize is awarded for first place. Logistics are based out of the Riverdale Metro North Parking Lot in the Bronx. Visit the organization's website for the most recent information.

33 mi
Nyc Stair Set of Doom Ultra