Delaware Half Marathon Calendar 2025-2026

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Explore the best half marathons in Delaware for 2025-2026! Our updated list features 4 exciting races across the region. Find your next race in Delaware below and join the running community at these great events!

April 2025
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
December 2025
Dec
6
Saturday

Rehoboth Seashore Marathon

13 mi 26 mi
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