Trail ultramarathons in Belgium
28 upcoming trail ultramarathons in Belgium.
21 cities
Busiest: December
From €2
Upcoming races
Your guide to trail ultramarathons in Belgium
There are 28 upcoming trail ultramarathons in Belgium, spread across 21 cities. Filter by distance or terrain to narrow things down, and save the races you like the look of.
Most take place in December, November and March. Next up is 6th Grand Trail of Lakes and Castles Winter - 66K in Ovifat on 7 November 2026.
Questions runners ask
How many trail ultramarathons in Belgium are there?
Finndu lists 28 upcoming trail ultramarathons in Belgium, across 21 towns and cities. The list is updated twice a day as organisers announce new races.
When is the next one?
6th Grand Trail of Lakes and Castles Winter in Ovifat, on 7 November 2026.
Which month has the most trail ultramarathons in Belgium?
December, followed by November and March.
How much does it cost to enter?
Entry starts from €2. Fees vary from race to race, so check each race page for its current price.