
Mendon, United States of America · Sunday 23 August 2026
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
Adjusted Time
1:40:47
Time difference: -4.2 minutes compared to a flat, road, temperate course.
Black Diamond Express Half Marathon & 5K is a half marathon held in Mendon, United States of America, scheduled for Sunday 23 August 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 0m above sea level. For registration and full race details, visit the official Black Diamond Express Half Marathon & 5K website.
This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 0m to 0m above sea level — a 0m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Black Diamond Express Half Marathon & 5K is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Black Diamond Express Half Marathon & 5K is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Black Diamond Express Half Marathon & 5K against other half marathons to find the right race for your goals.
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