Running
Halbmarathon
21.1 km

Running
Halbmarathon
21.1 km
Germany's largest SwimRun set in and around the scenic Grienericksee near Berlin. It alternates between running on natural paths and swimming in open water, offering a unique, weatherproof challenge for endurance athletes.
Multiple on-course refreshment stations with drinks and snacks along the running and swimming segments.
Pacemaker information is available during registration and on the start day under Renntag for each start wave; look for Pacers with flags who set target times per wave to help you pace.
Monthly averages based on historical data (2000–present).
Registration must be completed online via your personal user account before the event; late on-site registration may not be available.
Yes — SwimRun, Sprint and SuperSprint allow individual or two-person teams. Family Fun and Youth categories have fixed team compositions.
Wear a SwimRun-specific wetsuit (neoprene), lightweight trail shoes, and comfortable athletic clothing. Avoid cotton; prioritize quick-dry fabrics.
No drafting is permitted in the swimming segments; maintain safe distance and follow pacers and marshals.
No, pets are not permitted on the course for safety and environmental reasons.
Last updated: Jun 5, 2026, 11:50:59 PM
We'll email you when races match your filters. No spam — only what fits your goals.
On your marks
Loading race details…