Delaware Half Marathons
9 upcoming half marathons across Delaware, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: half marathons in Delaware
Delaware has 9 upcoming half marathons over the next 12 months. Among complete calendar months, April 2027 has the most listed races, with 2. Most are around Lewes, Rehoboth Beach, Wilmington. The next one is 6TH SEAWITCH 1/2 MARATHON CLASSIC (SEAWITCH RACING FESTIVAL WEEKEND) on October 24 in Lewes.
- Oct 20261 race
- Dec 20261 race
- Jan 20271 race
- Mar 20271 race
- Apr 20272 races
- May 20272 races
- Oct 20271 race
October 2026
- Sat 10/246TH SEAWITCH 1/2 MARATHON CLASSIC (SEAWITCH RACING FESTIVAL WEEKEND)Lewes, DE · Half Marathon · 16.2 Miles · from $70 · register ↗
December 2026
- Sat 12/5Rehoboth Seashore Marathon and Half MarathonRehoboth Beach, DE · Marathon · Half Marathon · from $60 · register ↗
January 2027
- Sat 1/944th Icicle Ten Miler & Snowflake 5kWilmington, DE · 10 Mile · 5K · Half Marathon · register ↗
March 2027
- Sat 3/20First State Half Marathon & 10KNewark, DE · Half Marathon · 10K · from $59 · register ↗
April 2027
- Sat 4/10Coastal Delaware Running FestivalRehoboth Beach, DE · Marathon · Half Marathon · 9K · 5K · 5.6 Miles · from $30 · register ↗
- Sun 4/18Delaware Running FestivalWilmington, DE · Marathon · Half Marathon · 10K · 5K · from $30 · register ↗
May 2027
- Sat 5/8Race4Warriors 5K, 10K & Half Marathon Challenges!Lewes, DE · 5K · 10K · Half Marathon · from $25 · register ↗
- Sat 5/22Conquer The CanalDelaware City, DE · Marathon · Half Marathon · 10K · 5K · from $35 · register ↗
October 2027
- Sun 10/3Bear Trail Half Marathon & 10KBear, DE · Half Marathon · 6.5 Miles · Trail · from $45 · registration closed · register ↗
Planning a race
- Choosing a first marathonmoving up from the half, and picking a debut race
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