
Le Versoud, France · Sunday 18 May 2025
The Marathon du Grésivaudan, held on May 18, 2025, in Le Versoud, France, is a scenic event that offers a completely flat course, perhaps the flattest in France. The race starts on one of the runways of the Versoud aerodrome and follows the banks of the Isère River for a significant portion. With its well-organized logistics and enthusiastic support from the local community, this marathon is a must-do for those seeking a challenging yet enjoyable race experience amidst natural beauty.\n\nThe eve
Adjusted Time
3:57:19
Time difference: -2.7 minutes compared to a flat, road, temperate course.
Marathon du Grésivaudan is a full marathon held in Le Versoud, France, scheduled for Sunday 18 May 2025. The course is run on road surface with 59m of total elevation gain, reaching a maximum altitude of 232m above sea level. For registration and full race details, visit the official Marathon du Grésivaudan website.
This is a very flat course with only 59m of total elevation gain across the full distance. The course ranges from 212m to 232m above sea level — a 20m 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 May, the expected race day conditions are as follows. Moderate temperatures between 11°C and 24°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance over the full distance. There is a low chance of rain (0%), so dry conditions are likely.
Marathon du Grésivaudan 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 Marathon du Grésivaudan 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 Marathon du Grésivaudan against other marathons to find the right race for your goals.
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