Marathon directory
Marathons in Delaware, United States
7 upcoming marathons listed in Delaware. Next: Seashore Classic Half Marathon on May 1, 2027.
7marathons upcoming
0cities
May 1, 2027Next race
Marathon, Half marathon, Ultra, 10K, 5K, VirtualDistances
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Already listed in Delaware, United States? Open the race and use Update listing. Missing event? Start here with the location prefilled.
06SEP
ULTRA
course — Bear, Delaware, United States
Bear Trail Half Marathon & 10K
Bear, Delaware, United States
SEP
18SEP
ULTRA
course — Dover, Delaware, United States
SHSH Backyard Ultra 2026
Dover, Delaware, United States
SEP
24OCT
ULTRA
course — Lewes, Delaware, United States
6TH Seawitch 1/2 Marathon Classic (Seawitch Racing Festival Weekend)
Lewes, Delaware, United States
OCT
05DEC
ULTRA
course — Delaware, United States
Rehoboth Beach Running Co. Seashore
Delaware, United States
DEC
10APR
ULTRA
course — Rehoboth Beach, Delaware, United States
Coastal Delaware Running Festival
Rehoboth Beach, Delaware, United States
APR
18APR
ULTRA
course — Delaware, United States
Delaware Marathon
Delaware, United States
APR
01MAY
ULTRA
course — Delaware, United States
Seashore Classic Half Marathon
Delaware, United States
MAY
Planning notes for Delaware, United States
Use this region page to shortlist 7 upcoming races by date, distance, registration path, and official source.
- Next raceSeashore Classic Half Marathon on May 1, 2027
- Busy monthsApril (2), September (2), December (1)
- DistancesMarathon, Half marathon, Ultra, 10K, 5K, Virtual
- VerifyOpen each race page, then confirm details from its official, registration, course-map, or source link.