Rehoboth Beach, United States of America · Saturday 6 December 2025
Rehoboth Seashore Marathon is a scenic event held annually in early December in Rehoboth Beach, Delaware. The race features a fast and flat course, ideal for achieving personal bests. The event includes a full marathon, half marathon, and virtual options, making it accessible to runners of all levels. The marathon benefits local charities, such as Girls on the Run Delaware and the Seashore Striders Youth Cross Country Team, adding a meaningful dimension to the race.\n\nWith its well-organized se
Adjusted Time
3:51:55
Time difference: -8.1 minutes compared to a flat, road, temperate course.
Rehoboth Seashore Marathon is a full marathon held in Rehoboth Beach, United States of America, scheduled for Saturday 6 December 2025. The course is run on road surface with 79m of total elevation gain, reaching a maximum altitude of 14m above sea level. For registration and full race details, visit the official Rehoboth Seashore Marathon website.
This is a very flat course with only 79m of total elevation gain across the full distance. The course ranges from 0m to 14m above sea level — a 14m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Based on historical weather data for December, the expected race day conditions are as follows. Cold conditions are expected, with temperatures between 1°C and 5°C. While cold weather reduces overheating risk, runners should dress in layers and be prepared for potential wind chill. There is a low chance of rain (4%), so dry conditions are likely.
Rehoboth Seashore Marathon is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Rehoboth Seashore Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Rehoboth Seashore Marathon against other marathons to find the right race for your goals.
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