Delaware Half Marathon Calendar 2025-2026

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Explore the best half marathons in Delaware for 2025-2026! Our updated list features 5 exciting races across the region. Find your next race in Delaware below and join the running community at these great events!

March 2025
Mar
22
Saturday

First State Half Marathon

10 km 13 mi
April 2025
Apr
6
Sunday

Delaware Running Festival

5 km 10 km 13 mi 26 mi
Apr
12-13
Sa - Su

Coastal Delaware Running Festival

5 km 9 km 13 mi 26 mi
May 2025
May
3
Saturday

Seashore Classic Half Marathon

5 km 13 mi
May
10
Saturday

Race4Warriors Half Marathon

Trail Run 5 km 10 km 13 mi
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