
Black Diamond Express Half Marathon & 5K is a running race on August 23–30, 2026 in Mendon, NY, with entry fees from $32 to $63.
From the Organizer
Half Marathon course is USATF Certified - NY17052JG
Please visit: https://mendonfoundation.org/black-diamond-express-races/ for more detailed information and answers to your Frequently Asked Questions.
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
79°
Typical Low
57°
Based on US Climate Normals data from Victor 2nw, 3 mi from the venue.
Host City
City Elevation
616 ft
Nearest Airport
ROC
Frederick Douglass Greater Rochester International Airport · 12 mi
Time Zone
Eastern Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Black Diamond Express Half Marathon & 5K, put it on the calendar, and turn “someday” into a start date.
31
Days to train
Enter your email and we'll send more your way.
From Endurance Grid
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
5th Annual Seize the Day: Amer’s Epilepsy Trail Race 5K/10K and One Mile Walk/Fun Run
4 miles away
Pound the Ground 5K for Veterans Outreach Center
4 miles away
Toni's Race: Strollin' for the Colon
3 miles away
Cobblestone Foundation Annual Run, Walk & Roll 5K
5 miles away
Plan your trip
Coming from out of town? There's more to Mendon than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to MendonFrequently Asked Questions (FAQs)
Black Diamond Express Half Marathon & 5K
Aug 23, 2026