Endurance Grid lists 77 running races in Delaware, from September 2026 to May 2027 across 17 cities.
The running race calendar in Delaware is busiest in October, November, and September, with races most often in Wilmington, Newark, Lewes, and Dover.
Organized running races are one of the most accessible entry points into endurance sports. There’s a distance for every fitness level and a community at every start line. Distances run from 1-mile fun runs and 5Ks up through the 10K, half marathon, and marathon.
Most races are timed and chip-scored, with a mass or wave start and aid stations along the course. Big-city races keep the noise going the whole way; smaller races give you long stretches where it’s just you and the miles.
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Endurance races in Delaware happening in the next 7 days, in date order. Browse what’s coming up and sign up soon.
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