Black Diamond Express Half Marathon & 5K in Mendon, NY experience

Black Diamond Express Half Marathon & 5K

Home » Races » New York » Mendon » Black Diamond Express Half Marathon & 5K
Date

Aug 24, 2025

Starting Time

8:00 AM EDT

Course

Trail-Road

Fees

$73.08+

Location

Mendon

Participants

100-500

Terrain

Fast & Flat

Environment

Small Town, Forested, Park Run

Temperature
High: 80°
/ Low: 70°
Perfect For:
Personal Bests
Well Organized
Family Friendly
Walker Friendly
Charity Race
BQ
Overview

This summer, join the 14th Annual Black Diamond Express on Sunday, August 24, 2025, along the historic Lehigh Valley Trail in picturesque Mendon, NY. Hosted by the Mendon Foundation—Monroe County’s dedicated land trust—the event raises critical funds to maintain and enhance the scenic rails‑to‑trails corridor.

Race History & Significance
The Black Diamond Express began in 2012 and has grown into a beloved community tradition. In 2021, 176 half-marathoners and 52 5K runners tackled the course despite humid conditions, with a standout sub‑1:10 performance setting a new course record. Runners return year after year—the 10th edition welcomed 289 participants including virtual entries.

The Course Experience
Expect a flat, fast, USATF-certified half marathon through shaded, tree‑lined paths ideal for chasing personal bests. The out‑and‑back loop begins at the Mendon Youth Baseball Fields, with the trail freshly resurfaced for smooth running. Multiple refreshment stations and plenty of volunteer support make the experience both scenic and well-organized.

What Makes It Unique

  • Historic railway backdrop: Run along the former Lehigh Valley “Black Diamond” route, embracing small-town charm.
  • Community-driven charity: All proceeds support trail upkeep, land conservation, and public recreation.
  • Tangible swag incentive: First 150 registrants choose between a commemorative long-sleeve tee or coffee mug; all half finishers receive handmade ceramic medals. The 5K awards ceramic lapel pins instead of medals.
  • Competitive edge: Cash prizes ($300/1st, $100/2nd) for top male and female half marathoners ensure spirited competition.

🌟 Final Take

The Black Diamond Express offers a scenic, intimate, and meaningful racing experience—perfect for runners seeking a fast finish combined with community impact. Run along history, earn a unique ceramic medal, and support local trail stewardship all at once.

Course Description

Course: Flat, scenic out & back course along the historic Lehigh Valley Trail

The Black Diamond Express Half Marathon starts in the Hamlet of Mendon near the baseball fields south of Route 251, runs 6.55 miles west toward Rush, turns around, and ends right where it began! The Black Diamond Express is the first half marathon event in the southeast portion of the county – and a flat and exceptionally beautiful one at that!

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