Black Diamond Express Half Marathon & 5K

Black Diamond Express Half Marathon & 5K — To benefit the Mendon Foundation - Mendon, New York's local land trust and developer/maintainer of the Lehigh Valley Trail in partnership with the Monroe County Parks Department. 

(Including virtual option, with option to complete race within one week after race day.)

Sunday, August 23, 2026 • Lehigh Valley Trail, Rt. 251, Mendon, NY

Half Marathon Starts: 8:00am
5K Starts: 8:20am

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

Additional sections of the Lehigh Valley Trail have been resurfaced!

Half Marathon course is USATF Certified - NY17052JG

Includes

• Long sleeved (unisex) t-shirt OR mug guaranteed to the first 150 (combined) by Sunday, August 2nd.  (Once sizes are gone after August 2nd we are out of shirts!) 
• Refreshments and healthy snacks.
• Collectible ceramic medals for Half Marathon finishers, collectible ceramic lapel pins for 5K finishers.  
• Once again, we are offering Virtual Half Marathon and 5K events! Run the distance within a week after the live race date, and we will mail your selected t-shirt or mug, and a medal (HM) or lapel pin (5K). You can download the race certificate post race and enter your time on the website.

Awards

• Half Marathon: Top 5 (non virtual) Male & Female Cash or Gift awards; plus collectible Race Water Bottles for top 3 in age groups 12 and under, 13-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70+
• All Half Marathon finishers will receive our beautiful, collectible ceramic finisher’s medal!
• 5K: Top 5 (non virtual) Male & Female Cash or Gift awards; plus collectible Race Water Bottles for top 3 in age groups 12 and under, 13-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70+
• All 5K finishers will receive our beautiful, collectible ceramic lapel pin!

Official Site & Frequently Asked Questions

Please visit: https://mendonfoundation.org/black-diamond-express-races/ for more detailed information and answers to your Frequently Asked Questions.

Join fellow runners on August 23, 2026 for the Black Diamond Express Half Marathon & 5K. It's a fantastic Half-Marathon, 5K featuring a flat and fast course in Mendon.