Road running

Black Diamond Express Half Marathon & 5K

📅 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 Black Diamond Express Half Marathon & 5K takes place in Mendon on August 22, 2027, with the half marathon (13.1 miles / 21.1 km) starting at 8:00 a.m. and the 5K (3.1 miles) at 8:20 a.m. The races benefit the Mendon Foundation, which works with the Monroe County Parks Department to maintain the Lehigh Valley Trail.

The event features a scenic course and virtual participation options. Refreshments are provided, and awards go to the top finishers in each age group.

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Races nearby

Other upcoming races around Mendon.