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La Grosse Bertha

Ans, Belgium • 15-16 Aug 2026

The La Grosse Bertha will take place in Ans from Saturday 15 August 2026 to Sunday 16 August 2026. You can run between 10 and 107 kilometers. Visit the organization's website for the most recent information.

Belgium Luik Ans

Race information

Website Facebook

107 km

Ultra 107

65 km

Trail Rive Droite

Marathon

Marathon de la Grosse Bertha

26 km

Course des Ulhans

16 km

La Bande à Bonnot

10 km

Course Julien Adam

Visit the organization's website for the most recent information.

Trail runs nearby

Friday May 29

Entre Vyle et Campagne

The Entre Vyle et Campagne will take place in Marchin on Friday 29 May 2026. You can run between 7 and 26 kilometers.

Saturday May 30

Les Foulées de la Damzelle

The Les Foulées de la Damzelle will take place in Érezée on Saturday 30 May 2026. You can run between 5 and 19 kilometers.

Sunday May 31

Cross Biathlon Fléron

Fléron

5 km

10 km

The Cross Biathlon Fléron will take place in Fléron on Sunday 31 May 2026. You can run between 5 and 10 kilometers.

Sunday May 31

Trail de la Croix de Cwimont

Aywaille

7 km

15 km

The Trail de la Croix de Cwimont will take place in Aywaille on Sunday 31 May 2026. You can run between 7 and 15 kilometers.