Schloss Marienburg Marathon 2026

The Schloss Marienburg Marathon takes place in a hilly landscape near Nordstemmen-Adensen, in Lower Saxony, close to Hanover. It typically occurs in mid-to-late November, with the marathon serving as the central event of a local running festival organized by VfL Adensen-Hallerburg. Participants can select from a full marathon, half marathon, relay marathon, or a 21 km option for walking or Nordic walking. The route follows a circuit through the countryside surrounding Adensen and Hallerburg, extending both northwest and southeast of the villages. The event is associated with the Schloss Marienburg name and marketed as a castle-themed run, emphasizing its setting in rural Lower Saxony rather than a large urban marathon. An account from a previous edition described freezing temperatures before the start, consistent with the late-autumn timing and adding a challenging aspect beyond its modest village location.