Delaware Marathons

Delaware has 3 active marathons this year. Races are most common in April and December. Course terrain for these courses is most often mostly flat or rolling hills. Typical race day temperatures range from 40°F to 58°F.

Popular races include the Rehoboth Beach Marathon, Coastal Delaware Running Festival Marathon, and Delaware Marathon. 3 certified courses can be great Boston qualifier options. Races with the best Boston qualifying percentages include the Rehoboth Beach Marathon — 12.6% BQ and Coastal Delaware Running Festival Marathon — 8.9% BQ.