Delaware · Marathon
Marathons in Delaware
Delaware currently has 4 upcoming marathons with a confirmed date listed in RaceRove. They take place in Dewey Beach, Dover, Rehoboth Beach and Wilmington.
- Upcoming, date confirmed
- 4
- Active listings
- 4
- Cities with races
- 4
More ways to browse Delaware
Upcoming marathons in Delaware
All 4 with a confirmed date, soonest first.
-
Rehoboth Beach Seashore Marathon & Half MarathonRehoboth Beach, DEMarathonHalf Marathon ~3,000 runners
Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.
Largest marathon events in Delaware
By estimated field size across all distances at the event.
-
Rehoboth Beach Seashore Marathon & Half MarathonRehoboth Beach, DEMarathonHalf Marathon ~3,000 runners
When marathons happen in Delaware
- April
- 2 upcoming races
- October
- 1 upcoming race
- December
- 1 upcoming race
Delaware cities with the most marathons
- Dewey Beach
- 1 upcoming race
- Dover
- 1 upcoming race
- Rehoboth Beach
- 1 upcoming race
- Wilmington
- 1 upcoming race
Marathons in nearby states
Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 4 min read Diplo's Run Club 2026-27: Every City, Date and Course Diplo's Run Club is a 5K with a post-race concert. Every US date for 2026-27 (San Francisco, New York, Los Angeles, San Diego and Phoenix), start times and courses.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Marathons in Delaware: common questions
- How many marathons are there in Delaware?
- RaceRove currently lists 4 upcoming marathons in Delaware with a confirmed date.
- How long is a marathon?
- A marathon is 26.2 miles (42.2 kilometres).
- Which Delaware cities have the most marathons?
- By upcoming events listed in RaceRove: Dewey Beach (1), Dover (1), Rehoboth Beach (1) and Wilmington (1).
- What is the biggest marathon in Delaware?
- By estimated field size, the largest event with a marathon listed in Delaware is the Rehoboth Beach Seashore Marathon & Half Marathon, with about 3,000 runners across all of its distances.
Search every marathon in Delaware
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.