Half-Marathon races in Delaware, United States — 2026 running calendar

Bear Trail Half Marathon & 10K

Bear, Delaware, United States

06 Sep, 2026 (Sun)

$55.00 - $60.00

Running

Half-Marathon 10.5K

6TH SEAWITCH 1/2 MARATHON CLASSIC (SEAWITCH RACING FESTIVAL WEEKEND)

Lewes, Delaware, United States

24 Oct, 2026 (Sat)

$70.00 - $90.00

Running

Half-Marathon 26.1K

Rehoboth Seashore Marathon and Half Marathon

Rehoboth Beach, Delaware, United States

05 Dec, 2026 (Sat)

$75.00 - $175.00

Running

Marathon Half-Marathon

Coastal Delaware Running Festival

Rehoboth Beach, Delaware, United States

10 Apr, 2027 (Sat) – 11 Apr, 2027

$35.00 - $145.00

Running

5K 9K Half-Marathon Marathon +3

Race4Warriors 5K, 10K & Half Marathon Challenges!

Lewes, Delaware, United States

09 May, 2026 (Sat)

Running, Walking, Trail running

5K 10K Half-Marathon +5

17th Seashore Classic 1/2 Marathon, 2-person Relay & 5k Run/Walk

Lewes, Delaware, United States

02 May, 2026 (Sat)

Running

5K Half-Marathon

RACE4WARRIORS VIRTUAL 5k, 10K or Half Marathon

Lewes, Delaware, United States

01 May, 2026 (Fri) – 25 May, 2026

Running

5K 8K 10K Half-Marathon +5

Race Through Delaware 1M, 5K, 10K, 13.1, 26.2 – Now Only $20!

Dover, Delaware, United States

28 Mar, 2026 (Sat) – 31 Dec, 2026

$20.00

Running

1.6K 5K 10K Half-Marathon +1