Rehoboth Seashore Marathon and Half Marathon

Rehoboth Seashore Marathon and Half Marathon is run in Rehoboth Beach, Delaware, on December 5, 2026, with the marathon (26.2 miles) and the half marathon (13.1 miles) both starting at 7 a.m. Runners set off near the beach and follow paved and crushed-stone paths through Cape Henlopen State Park and along the Junction & Breakwater Trail, past marsh, pine woods and quiet back roads. The course is flat and fast, live tracking is available, and there is a firm seven-hour limit with a 16-minute-per-mile cutoff. Proceeds go to local nonprofits.

Flat and fast plus a strict cutoff tells you who this suits: runners after a marathon personal best or a qualifying time, and runners confident they can hold under 16 minutes per mile for the distance. Build sixteen weeks with a weekly long run and some sustained work at goal pace. On a course with no hills to break the rhythm, pacing discipline decides your last six miles.