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    Half Marathon Races in Delaware

    8 upcoming Half Marathon races across Delaware. Run This events are listed first — pick a city below to narrow it down.

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    8 races

    Sat, Oct 24, 2026

    6TH SEAWITCH 1/2 MARATHON CLASSIC (SEAWITCH RACING FESTIVAL WEEKEND)

    Lewes, DE

    OutsideMarathon16.2 mi

    Sat, Dec 5, 2026

    Rehoboth Seashore Marathon and Half Marathon

    Rehoboth Beach, DE

    OutsideMarathon

    Sat, Mar 20, 2027

    First State Half Marathon & 10K

    Newark, DE

    OutsideMarathon10K

    Sat, Apr 10, 2027

    Coastal Delaware Running Festival

    Rehoboth Beach, DE

    OutsideMarathon5.6 mi5K

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    Sun, Apr 18, 2027

    Delaware Running Festival

    Wilmington, DE

    OutsideMarathon10K5K

    Sat, May 8, 2027

    Race4Warriors 5K, 10K & Half Marathon Challenges!

    Lewes, DE

    Outside5K10KMarathon

    Sat, May 22, 2027

    Bear Triathlon

    Bear, DE

    Outside13.6 mi29.9 mi1 mile

    Sat, May 22, 2027

    Conquer The Canal

    Delaware City, DE

    OutsideMarathon10K5K

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