Delaware Marathon, Relay & Half Marathon

The Delaware Running Festival takes place on April 19, 2026, in Wilmington on a trail surface with gently rolling terrain that stays mostly flat, making it a solid choice if you want a fast course without major climbing. Starting at just 1 meter above sea level and topping out at 80 meters, you won't face any significant elevation challenges over the 42.2 kilometers. This is Delaware's original marathon, so the event has established infrastructure and race organization, with packet pickup, results, and typical race-day logistics handled through their RunSignup platform. Head to the website for details on travel, accommodations, and the various distance options available, including the half marathon and shorter 5K and 10K races if you want to bring along non-marathon friends or family. Registration information and pricing are available on their site along with the full event schedule.