
Poole Harbour, United Kingdom · Monday 26 April 2027
Jurassic Coast Ultra Challenge is a demanding trail running event held along the iconic Jurassic Coast in Dorset, UK. The race features multiple distances, including a 100 km ultra, 50 km, and 25 km, catering to trail enthusiasts of all levels. The course passes through stunning coastal landscapes, offering breathtaking views of the sea and surrounding cliffs. This ultra challenge is not just about endurance but also about immersing oneself in nature.
Adjusted Time
5:41:20
Time difference: +101.3 minutes compared to a flat, road, temperate course.
On our difficulty model, Jurassic Coast Ultra Challenge plays about 87 minutes slower than an average road marathon for a 3:30 runner. It ranks #17 hardest of 1150 marathons we analyse, and #2 of 57 in United Kingdom. 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 Jurassic Coast Ultra Challenge | Difference |
|---|---|---|
| 3:00:00 | 4:03:24 | +1:03:24 |
| 3:30:00 | 4:51:38 | +1:21:38 |
| 4:00:00 | 5:41:20 | +1:41:20 |
| 4:30:00 | 6:32:25 | +2:02:25 |
| 5:00:00 | 7:24:52 | +2:24:52 |
| 5:30:00 | 8:18:35 | +2:48:35 |
| 6:00:00 | 9:13:34 | +3:13:34 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Jurassic Coast Ultra Challenge is a full marathon held in Poole Harbour, United Kingdom. It is scheduled for Monday 26 April 2027. The course is run on trail surface with 1475m of total climbing, with its high point near 197m above sea level. For registration and full race details, visit the official Jurassic Coast Ultra Challenge website.
This is a very challenging course with 1475m of total climbing - well above the average trail marathon - topping out around 197m above sea level. Hill training is essential, and you should expect a slower finish time than on a flat course.
Based on historical weather data for April, the expected race day conditions are as follows. Cold conditions are expected, with temperatures between 0°C and 15°C. While cold weather reduces overheating risk, runners should dress in layers and be prepared for potential wind chill. There is a moderate chance of rain (38%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Jurassic Coast Ultra Challenge 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 Jurassic Coast Ultra Challenge against other marathons to find the right race for your goals.
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