13. Marathon of Lake Der

The Marathon du Lac du Der takes place on Sunday, June 14, 2026, in Saint-Dizier and celebrates its 13th edition. First organized in 2013, it is now one of the largest marathon events in the Grand-Est region. In the previous year (2025), the number of participants was around 1,500, and about 10,000 spectators lined the route, making the event a true sports festival ([triathlonetduathlon.fr](https://triathlonetduathlon.fr/fr/evenement/marathon-du-lac-du-der?utm_source=openai)). The course runs along the largest artificial lake in France, the Lac du Der, through a diverse landscape with dikes, forests, and waterfront paths – ideal for runners who value scenic variety and a tourist flair ([triathlonetduathlon.fr](https://triathlonetduathlon.fr/fr/evenement/marathon-du-lac-du-der?utm_source=openai)).

The event is organized by about 200 volunteers and also offers a corporate challenge as well as accessible participation options – embodying inclusion and a sense of community ([triathlonetduathlon.fr](https://triathlonetduathlon.fr/fr/evenement/marathon-du-lac-du-der?utm_source=openai)). The course is considered very flat and fast (a good "rolling" course), ideal for both ambitious runners and marathon beginners ([preparun.com](https://www.preparun.com/fr-FR/c/marathon-du-lac-du-der-2026?utm_source=openai)).

Especially relevant for SEO purposes: the course has only about 135 meters of elevation gain in total, which makes it appear particularly "flat" ([finishers.com](https://www.finishers.com/course/marathon-du-lac-de-der?utm_source=openai)). Additionally, entertainment is provided along the course – from musical animations to regular refreshment points and support from spectators – making the event a lively experience ([preparun.com](https://www.preparun.com/fr-FR/c/marathon-du-lac-du-der-2026?utm_source=openai)).

Marathon Solo (42,195 km), Duo-Staffel (je 21,1 km) und Quatuor-Staffel (je ~10,55 km)