Trail

Semi-Marathon Express du Diamant Noir

📅 August 22, 2027 (estimated date)📍 Mendon · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (August 23, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

13.1 mi3.1 mi

About

The Semi-Marathon Express du Diamant Noir, also known as the Black Diamond Express race, takes place in Mendon, Monroe County, New York, on August 22, 2027, on a course set in the heart of nature. Two formats are on offer: a 5K (3.1 miles) trail race and a half marathon (13.1 miles / 21.1 km) on wooded trails.

Within an hour's drive are Mendon Ponds Park, the city of Rochester and its George Eastman Museum, the Finger Lakes wine region, Letchworth State Park, nicknamed the "Grand Canyon of the East", and the Rochester Public Market.

Highlights

Off-road
Charity race
Forest

D-308

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Races nearby

Other upcoming races around Mendon.