Black Diamond Express Half Marathon & 5K

Sun, Aug 23, 2026, 8:00 AM EDT

Location: Mendon, NY; 3865 Rush Mendon Rd, 14506
Type: RUN

Official registration

At a glance

Experience a scenic run on the Lehigh Valley Trail while supporting the Mendon Foundation's land preservation efforts.

Scenic
Competitive
For a Cause

The Black Diamond Express Half Marathon & 5K invites you to run a flat, scenic out-and-back course along the historic Lehigh Valley Trail in Mendon, NY. This event supports the Mendon Foundation, a local land trust dedicated to developing and maintaining the trail system. Participants can choose between a live race or a virtual option, enjoying the beauty of the resurfaced trail sections while contributing to a meaningful cause.

What to expect

Enjoy a flat, scenic out-and-back course along the historic Lehigh Valley Trail, with newly resurfaced sections.
Receive a long-sleeved shirt or mug, plus refreshments and healthy snacks post-race.
Half Marathon finishers earn collectible ceramic medals; 5K finishers receive collectible ceramic lapel pins.

Standout details

Benefits Mendon Foundation
Flat, scenic Lehigh Valley Trail course
USATF Certified Half Marathon
Collectible ceramic finisher swag

Auto-drafted from the public listing — confirm details on the official event page before signing up.

Distances & registration

4 options

Registration for all distances is through the official signup link above.

3.107 Miles
Sun, Aug 23, 8:20 AM EDT · From $32.80
Opens Jan 3, 2026, 7:00 PM EST · Closes Aug 23, 2026, 4:00 AM EDT
3.107 Miles
Sun, Aug 23, 8:00 AM EDT · From $32.80
Opens Jan 3, 2026, 7:00 PM EST · Closes Aug 23, 2026, 4:00 AM EDT
13.11 Miles
Sun, Aug 23, 8:00 AM EDT · From $59.30
Opens Jan 3, 2026, 7:00 PM EST · Closes Aug 23, 2026, 4:00 AM EDT

+ 1 more option

13.11 Miles
Sun, Aug 23, 8:00 AM EDT · From $59.30
Opens Jan 3, 2026, 7:00 PM EST · Closes Aug 23, 2026, 4:00 AM EDT

Vibe Check

Steady Effort

warm-day exposure

Warm season

The course

Hilly
Timed race

From the organizer

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!

Start & end location: Mendon Youth Baseball Fields ( https://goo.gl/maps/8ZoNAryJ95q )

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 .

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