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Marathon Races in Delaware

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

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4 races

Fri, Dec 4, 2026

Rehoboth Seashore Marathon and Half Marathon

Rehoboth Beach, DE

OutsideMarathon

Fri, Apr 9, 2027

Coastal Delaware Running Festival

Rehoboth Beach, DE

OutsideMarathon5.6 mi5K

Sat, Apr 17, 2027

Delaware Running Festival

Wilmington, DE

OutsideMarathon10K5K

Fri, May 21, 2027

Conquer The Canal

Delaware City, DE

OutsideMarathon10K5K