Marathon du Grésivaudan
Le Versoud, France · Tuesday 18 May 2027
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.
Difficulty Calculator
h
:m
:s
Adjusted Time
3:58:03
Time difference: -1.9 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain59m
Elevation High232m
Elevation Low212m
Weather Forecast
High24°C
Low11°C
Chance of Rain0%
How hard is Marathon du Grésivaudan?
Moderateharder than 34% of marathons
Flattest / easiestHardest
On our difficulty model, Marathon du Grésivaudan plays about 3 minutes slower than an average road marathon for a 3:30 runner. It ranks #761 hardest of 1150 marathons we analyse, and #20 of 33 in France. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Marathon du Grésivaudan?
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 Marathon du Grésivaudan | Difference |
|---|---|---|
| 3:00:00 | 2:57:23 | −02:37 |
| 3:30:00 | 3:27:43 | −02:17 |
| 4:00:00 | 3:58:03 | −01:57 |
| 4:30:00 | 4:28:23 | −01:37 |
| 5:00:00 | 4:58:42 | −01:18 |
| 5:30:00 | 5:29:01 | −00:59 |
| 6:00:00 | 5:59:20 | −00:40 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Marathon du Grésivaudan 2027 Course Analysis
Marathon du Grésivaudan is a full marathon held in Le Versoud, France. It is scheduled for Tuesday 18 May 2027. The course is run on road surface with 59m of total climbing, with its high point near 232m above sea level. For registration and full race details, visit the official Marathon du Grésivaudan website.
Elevation Profile
This is a very flat course, with only 59m 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 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 on race day. There is a low chance of rain (0%), so dry conditions are likely.
Surface Type: Road
Marathon du Grésivaudan 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 Marathon du Grésivaudan against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Marathon du Grésivaudan fits your goal, these courses play out about the same on our difficulty model.
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