Marathons in Delaware

3 upcoming Marathon races in Delaware for 2026 and beyond — with dates, locations, and registration links.

Rehoboth Seashore Marathon and Half Marathon
Sat, Dec 5, 2026 · Rehoboth Beach, DE
MarathonHalf Marathon
Coastal Delaware Running Festival
Sat, Apr 10, 2027 · Rehoboth Beach, DE
MarathonHalf Marathon9K5K9.0K
Delaware Running Festival
Sun, Apr 18, 2027 · Wilmington, DE
MarathonHalf Marathon10K5K