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Willmersdorf, 03053 Cottbus, Brandenburg, Germany
The Cottbuser Ostsee Halbmarathon – Ostsee Run (Ostsee Run 2026) is an evening road running event held on the shores of the Cottbus Ostsee near Willmersdorf, organised by SG Willmersdorf e.V. and Teichlandradler e.V. The event offers a scenic route around the lake and places strong emphasis on accessible distances for a wide range of participants. As the race was first held in 2021 it combines a local-club atmosphere with a compact race-day schedule that suits weekend and evening runners alike.
Racing options include a 21.1 km half marathon plus 10 km and 5 km runs, a 1.8 km Schnupperlauf and organised walking classes such as 5 km and 10 km, and the event is affiliated with the Niederlausitz‑Cup series. Registration is handled via the organiser's website and the race maintains historical results pages for previous editions. The event prides itself on offering multiple distance options and a community-focused experience on a summer evening in Brandenburg.
