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5 marathons found for "Delaware", Half marathon, United States. Keep the list broad first, then tighten the filters when a race looks realistic.





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Lewes, Delaware, United States
24OCT
ULTRA
6TH Seawitch 1/2 Marathon Classic (Seawitch Racing Festival Weekend)
Lewes, Delaware, United States
October 24, 2026 OCT
Delaware, United States
05DEC
ULTRA
Rehoboth Beach Running Co. Seashore
Delaware, United States
December 5, 2026 DEC
Rehoboth Beach, Delaware, United States
10APR
ULTRA
Coastal Delaware Running Festival
Rehoboth Beach, Delaware, United States
April 10, 2027 APR
Delaware, United States
18APR
ULTRA
Delaware Marathon
Delaware, United States
April 18, 2027 APR
Delaware, United States
01MAY
ULTRA
Seashore Classic Half Marathon
Delaware, United States
May 1, 2027 MAY

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