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Mayfly Ultra

Stony Creek, United States • 17 May 2025

The Mayfly Ultra is an exciting running event taking place in Stony Creek, NY, featuring a challenging 49K ultra marathon and a 27K mini run, along with a relay option for teams of four. Set against the stunning backdrop of the Adirondack Park, participants will navigate both paved and unpaved roads, experiencing beautiful scenery, streams, and ponds. The event includes five aid stations and concludes with a catered BBQ and campfire at Harrisburg Lodge. Registration is required, and participants must demonstrate relevant experience for the ultra distance. The event promises a memorable experience for all runners. Visit the organization's website for the most recent information.

United States New York Stony Creek

Race information

Website Registration
49 km
2803 m+
49k
27 km
1943 m+
27k
Relay/4p
Visit the organization's website for the most recent information.
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