Half Marathons in Delaware

5 upcoming Half Marathon races in Delaware for 2026 and beyond — with dates, locations, and registration links.

Bear Trail Half Marathon & 10K
Sun, Sep 6, 2026 · Bear, DE
Half Marathon10.5K
6TH SEAWITCH 1/2 MARATHON CLASSIC (SEAWITCH RACING FESTIVAL WEEKEND)
Sat, Oct 24, 2026 · Lewes, DE
Half Marathon26.1K
Rehoboth Seashore Marathon and Half Marathon
Sat, Dec 5, 2026 · Rehoboth Beach, DE
MarathonHalf Marathon
Coastal Delaware Running Festival
Sat, Apr 10, 2027 · Rehoboth Beach, DE
MarathonHalf Marathon9K5K9.0K
Race4Warriors 5K, 10K & Half Marathon Challenges!
Sat, May 8, 2027 · Lewes, DE
5K10KHalf Marathon