Delaware Running Races

121 upcoming races across Delaware in the next 12 months, from local 5Ks to marathons and ultras. Updated nightly. Want filters, maps, and radius search? Open Delaware in the Race Finder.

By distance: Half Marathons · 5K Races · 10K Races · Ultras

By city: Wilmington · Newark · Lewes · Rehoboth Beach

Racing in Delaware: what the calendar looks like

There are 121 races on the Delaware calendar over the next 12 months, which works out to roughly 2 every weekend. October is the busiest month with 38 races; March is the quietest with 1. The busiest places to race are Wilmington (30), Newark (22), Lewes (14).

Of those, 102 offer a 5K, 24 offer a 1 Mile and 9 offer a Half Marathon. The next marathon is Rehoboth Seashore Marathon and Half Marathon on December 5 in Rehoboth Beach. The next half marathon is Bear Trail Half Marathon & 10K on September 6.

By race count Delaware ranks 41st of 51 states.

Races by month

Marathons in Delaware

Delaware has 4 marathons coming up in the next 12 months. First up is Rehoboth Seashore Marathon and Half Marathon on December 5, 2026 in Rehoboth Beach; after that come Coastal Delaware Running Festival (Sat 4/10, 2027), Delaware Running Festival (Sun 4/18, 2027), and 1 more below.

September 2026

October 2026

November 2026

December 2026

January 2027

March 2027

April 2027

May 2027

June 2027

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