Rehoboth Seashore Marathon
Rehoboth Beach, United States of America · Sunday 6 December 2026
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.
Difficulty Calculator
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:m
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Adjusted Time
3:53:09
Time difference: -6.9 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain79m
Elevation High14m
Elevation Low0m
Weather Forecast
High5°C
Low1°C
Chance of Rain4%
How hard is Rehoboth Seashore Marathon?
Easyharder than 11% of marathons
Flattest / easiestHardest
On our difficulty model, Rehoboth Seashore Marathon plays about 1 minute faster than an average road marathon for a 3:30 runner. It ranks #1019 hardest of 1151 marathons we analyse, and #485 of 576 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Rehoboth Seashore Marathon?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Rehoboth Seashore Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:55:21 | −04:39 |
| 3:30:00 | 3:24:18 | −05:42 |
| 4:00:00 | 3:53:09 | −06:51 |
| 4:30:00 | 4:21:54 | −08:06 |
| 5:00:00 | 4:50:34 | −09:26 |
| 5:30:00 | 5:19:09 | −10:51 |
| 6:00:00 | 5:47:40 | −12:20 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Rehoboth Seashore Marathon 2026 Course Analysis
Rehoboth Seashore Marathon is a full marathon held in Rehoboth Beach, United States of America. It is scheduled for Sunday 6 December 2026. The course is run on road surface with 79m of total climbing, with its high point near 14m above sea level. For registration and full race details, visit the official Rehoboth Seashore Marathon website.
Elevation Profile
This is a very flat course, with only 79m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Expected Race Day Weather
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.
Surface Type: Road
Rehoboth Seashore Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
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.
Marathons of similar difficulty
If Rehoboth Seashore Marathon fits your goal, these courses play out about the same on our difficulty model.
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