The Zugspitz Ultra Trail by UTMB is the largest trail running event in Germany.

7  distances ranging from 16 kilometers to the 100 miler (166 km) are available, including the traditional Leutasch Trail.
With its 68 km and 2,780 m of elevation gain, the Leutasch Trail offers true speed potential.

Over 5,000 athletes, around 50 exhibitors, and thousands of visitors transform the regions around the Zugspitze every year in June into the hotspot of trail running.

More info: https://zugspitz.utmb.world.