
Virginia Beach, United States of America · Sunday 21 March 2027
The Shamrock Marathon takes place in Virginia Beach, Virginia, starting and finishing at the city's oceanfront boardwalk in front of the King Neptune Statue. The course is known for being very flat and fast, offering good conditions for runners seeking personal records or a Boston Marathon qualifying time. The marathon follows a mostly out-and-back format on hard-surfaced roads and pavements.
Adjusted Time
4:30:45
Time difference: +30.8 minutes compared to a flat, road, temperate course.
On our difficulty model, Shamrock Marathon plays about 34 minutes slower than an average road marathon for a 3:30 runner. It ranks #160 hardest of 1150 marathons we analyse, and #93 of 575 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
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 Shamrock Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:25:58 | +25:58 |
| 3:30:00 | 3:58:33 | +28:33 |
| 4:00:00 | 4:30:45 | +30:45 |
| 4:30:00 | 5:02:40 | +32:40 |
| 5:00:00 | 5:34:20 | +34:20 |
| 5:30:00 | 6:05:49 | +35:49 |
| 6:00:00 | 6:37:08 | +37:08 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Shamrock Marathon is a full marathon held in Virginia Beach, United States of America. It is scheduled for Sunday 21 March 2027. The course is run on trail surface with 82m of total climbing, with its high point near 9m above sea level. For registration and full race details, visit the official Shamrock Marathon website.
This is a very flat course, with only 82m 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.
Based on historical weather data for March, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 7°C to 15°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (0%), so dry conditions are likely.
Shamrock Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are usually slower than the road equivalent - often by 10-20% - because of uneven footing, technical sections, and frequently steeper gradients, though a smooth, non-technical or downhill trail can run faster than that suggests. Trail-specific shoes with good grip are recommended.
Looking for an easier marathon or a tougher challenge? You can also compare Shamrock Marathon against other marathons to find the right race for your goals.
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