Marathons in Delaware 2026 | Upcoming Races & Dates

There are 4 marathons in Delaware scheduled for 2026. The next is the Rehoboth Seashore Marathon and Half Marathon in Rehoboth Beach on December 5. Delaware marathons run primarily December through May.

Rehoboth Seashore Marathon and Half Marathon

Sat, Dec 5 · Rehoboth Beach, DE Rehoboth Beach

Rehoboth Seashore Virtual Half MarathonRehoboth Seashore Half MarathonRehoboth Seashore Marathon +1

From $60 Open

Coastal Delaware Running Festival

Sat, Apr 10 · Rehoboth Beach, DE Rehoboth Beach

5k Run/Walk (Saturday)5k Run/Walk (Saturday)9k - Cape Challenge: 5k (Saturday) & 9k (Sunday) +11

From $30 Open 85 spots left

Delaware Running Festival

Sun, Apr 18 · Wilmington, DE Wilmington

5K - Charity RegistrationVirtual 5K - Charity Registration5K +29

From $0 Open

Conquer The Canal

Sat, May 22 · Delaware City, DE Delaware City

The Headwind Hustle 5kThe Jackson 5KThe Headwind Hustle 5k +7

From $25 Open 30 spots left

Marathons in Delaware — 2026

Rehoboth Seashore Marathon and Half Marathon

Coastal Delaware Running Festival

Delaware Running Festival

Conquer The Canal

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