NYC 50k - Stair Set of Doom Ultra

NYC 50k - Stair Set of Doom Ultra is an urban ultra held in The Bronx, New York, on April 17, 2027. The single format covers 50 km (31.1 miles) with roughly 11,500 feet of climbing, gained by linking the neighborhood's streets with long sets of stairs — the detail the race takes its name from.

This is an ultra run on pavement and steps rather than mountain singletrack, and it tests endurance on ground that is unusual for the distance: concrete underfoot, repeated stair climbs, and the artificial relief of the New York street grid. Train the descents as seriously as the climbs, since stairs punish the quads on the way down, and build toward long back-to-back weekend efforts with plenty of vertical rather than chasing flat mileage.