Aalborg, Denmark · Friday 18 April 2025
Journey into what some refer to as one of Europe's hidden gems! The Aalborg Brutal Half Marathon in Denmark, challenges each athlete with rough terrain, world-class views, and a connection to all that is Denmark. It's a true adventure that tests the human spirit. The journey through nature and a close, personal setting offers what few others in the world can provide.\n\nAs you reach Denmark, prepare for both gorgeous scenery and a world-class test. The rough terrain lets you come alive in new wa
Adjusted Time
2:05:43
Time difference: +20.7 minutes compared to a flat, road, temperate course.
Aalborg Brutal Half Marathon is a half marathon held in Aalborg, Denmark, scheduled for Friday 18 April 2025. The course is run on mixed surface with 369m of total elevation gain, reaching a maximum altitude of 66m above sea level. For registration and full race details, visit the official Aalborg Brutal Half Marathon website.
This is a hilly course with 369m of total elevation gain. The route climbs from 16m to as high as 66m above sea level — a substantial 50m elevation range. Runners should train on hills and plan for a more conservative pacing strategy, especially on the climbs.
Based on historical weather data for April, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 8°C to 11°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a high chance of rain (94%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Aalborg Brutal Half Marathon features a mixed-surface course, combining sections of road with unpaved terrain such as gravel paths, parkland, or boardwalks. Mixed courses add variety but also introduce some unpredictability in footing. Runners should expect slightly slower times compared to a pure road marathon, and road-trail hybrid shoes may be the best footwear option.
Our difficulty rating for Aalborg Brutal Half 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 half 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 Aalborg Brutal Half Marathon against other half marathons to find the right race for your goals.