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Trailrunbe

Bastogne-Wiltz-Bastogne & Castle Trail Wiltz

27 Dec 2026

The last trail race of the year is going bigger in 2026! This year, the event is adding 3 new distances. Major news: a 100 km route connecting Bastogne to Kautenbach before returning to Bastogne, for an endurance adventure between Belgium and Luxembourg. 2 more accessible formats are also making their debut: 18 km and 30 km, starting and finishing in Wiltz. 3 new distances, 3 new challenges, and still the same passion to end the year on the trails!

8,5/10

Review Score 2025

3rd

edition

2000+

Participants

100KM

New challenge

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Trail Running
Offroad

95%

Distances

5

From 18 to 100km

Index

UTMB

For all distances

Through forests, across borders, to the finish line

BWB 100

THE Great Challenge

BWB 100

Max time : 18 hours

The Bastogne-Wiltz-Bastogne 100 km is the main challenge of the event. Starting from Bastogne, the route takes participants into the heart of the Ardennes landscape, between Belgium and Luxembourg, with Kautenbach as the furthest point of the adventure. With 100 km and 3,111 m of elevation gain, the course is rugged but remains generally runnable. It is a distance where you will need to manage your effort, clock up the kilometers, and keep enough energy in the tank to head back toward Bastogne. On Sunday, December 27, a long winter adventure awaits you, with only one goal in sight: Get back to Bastogne and complete the 100 km.

TRUSTED BY

the following brands

We're proud to partner with leading brands who share our passion for adventure, performance, and pushing beyond limits.

Livio
scott
Runners' Lab
Etixx
garmin
vayamundo
run motion

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Bastogne

Start town

Bastogne

16,500 inhabitants

Located in the heart of the Belgian Ardennes, Bastogne is a town whose name remains deeply linked to European history. It is notably known for being one of the major locations of the Battle of the Bulge during the winter of 1944-1945, an episode whose memory is preserved today by numerous sites, monuments, and museums. But Bastogne is also a town surrounded by forests, valleys, and typical Ardennes landscapes, a region particularly suited to outdoor activities and long distances. It is from this town steeped in history that the participants of Bastogne-Wiltz-Bastogne set off, before heading towards Luxembourg and returning to cross the finish line in Bastogne.

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CASTLE TRAIL

WILTZ

CASTLE TRAIL

Luxembourg

Discover Wiltz and the landscapes of northern Luxembourg through two brand-new 18 km and 30 km routes. An adventure that begins in an iconic setting, at Wiltz Castle, before setting off to explore the surrounding trails and terrain. The finish will be at the Wiltz sports hall. Want to extend the adventure? The 50, 70, and 100 km routes of Bastogne–Wiltz–Bastogne will allow you to discover Wiltz at the heart of an even longer challenge.