www.10-teiche-marathon.de

10 Ponds Marathon in Hahnenklee

Goslar, Niedersachsen, Germany

calendar_today 12 Sep, 2026

About the Event

Immerse yourself in the legendary landscapes of the Harz Mountains at the 13. 10-Teiche-Marathon in Hahnenklee on Saturday, September 12, 2026. This is a true trail runner's challenge, featuring a demanding 42.195 km course with over 1,000 meters of elevation gain that weaves past ten picturesque ponds through dense forests and over rugged paths. For those seeking a shorter adventure, the event also offers a half marathon, an 11 km "Einsteigermarathon," and a children's run, ensuring a rewarding experience for every level of athlete. Known for its raw natural beauty and a vibrant, community-focused atmosphere, this race is a highlight for anyone passionate about mountain running. Secure your spot to conquer one of Germany's most beautifully grueling trail marathons.

Races Offered

Marathon

Sep 12, 2026

straighten

Distance — 42.2K

terrain

Type — —

timer

10:00

Halbmarathon

Sep 12, 2026

straighten

Distance — 21.1K

terrain

Type — —

timer

10:15

Einsteigermarathon

Sep 12, 2026

straighten

Distance — 11.5K

terrain

Type — —

timer

10:30

Mini-Marathon

Sep 12, 2026

straighten

Distance — 5K

terrain

Type — —

timer

10:45

Weather History

These values represent the 3-year monthly averages for September in Goslar.

thermostat Temperature

12.5° / 20.3°

wb_sunny Feels like

10.2° / 18.3°

light_mode Avg sunshine hours

9h 28m

water_drop Avg rainfall

2.2 mm

ac_unit Avg snowfall

—

air Avg wind speed

13.1 km/h (Gentle breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (3.5)

humidity_mid Humidity

74.4%

wb_twilight Sunrise

06:53

nightlight Sunset

19:31

About Goslar

Learn more about the host city, Goslar.

Goslar is a medieval town in Lower Saxony and serves as a regional hub to the wider Harz area. It lies at the foot of the Harz Mountains. Goslar is much older than Berlin and worth a visit. If you are interested in history, outdoor pursuits, tranquility and nature, then Goslar is the right spot for you. In 2019, it was home to 51,000 people.