Delaware Marathon Calendar 2025-2026

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Explore the best 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!

December 2025
Dec
6
Saturday

Rehoboth Seashore Marathon

13 mi 26 mi
April 2026
Apr
11-12
Sa - Su

Coastal Delaware Running Festival

5 km 9 km 13 mi 26 mi
Apr
19
Sunday

Delaware Running Festival

5 km 10 km 13 mi 26 mi
May 2026
May
30
Saturday

Conquer The Canal

5 km 10 km 13 mi 26 mi
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