Browse all 2021 Delaware half marathons by month below. For each race, you’ll find course maps, elevation profiles, runner reviews, and how to sign up.
See also: Delaware Half Marathons, Listed by City
April 2021
| Sun Apr 18 | Coastal Delaware Running Festival | Dewey Beach DE |
| Sun Apr 25 | Delaware Running Festival Marathon & Half Marathon | Wilmington DE |
May 2021
| Sat May 15 | Race4Warriors Marathon Half Marathon 10K & 5K | Lewes DE |
June 2021
| Sat Jun 5 | Independence Series Marathon Half Marathon 10K & 5K – Day 1 | Bear DE |
August 2020
| Sun Aug 2 | Delaware Running Festival Marathon Half Marathon & Relay | Wilmington DE |
| Sun Aug 23 | Bear Trail Half Marathon & 5K | Bear DE |
October 2020
| Sun Oct 4 | Seashore Classic Half Marathon 5K & Relay | Lewes DE |
December 2020
| Sat Dec 5 | Rehoboth Beach Seashore Marathon & Half Marathon | Rehoboth Beach DE |
