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Ultra Runs, Ultra-Marathons & Trails 2026 in Belgium • All Races

Show all Ultra Marathons in Belgium

Ultrarunning in Belgium: An overview of Ultra Runs, Ultra Marathons and Ultra Trails in Belgium.

The dates for all Ultra Races in Belgium, including registration, course, schedule, results and more details.

Belgian Ultra Runs: The Relentless Rollers of the Ardennes

Ultra runs and trail events in Belgium are largely defined by the rugged, dense forests of the Ardennes region. While lacking the high altitude of the Alps, the Belgian challenge lies in relentless, cumulative vertical gain achieved through countless short, steep climbs—often referred to as 'rollers.' These courses are notoriously technical, requiring runners to navigate slippery roots, deep forest paths, and heavy mud, particularly during the wet seasons. A Belgian ultra is a grueling test of endurance, demanding strong quad muscles for continuous uphill and downhill work, disguised within a beautiful, undulating landscape.

The Ardennes Challenge and Forest Immersion

Events like the Trail des Fantômes (Ghosts Trail) exemplify the unique challenge of the Ardennes, immersing runners deep into dense forests where navigation and foot placement are crucial. The total elevation gain in these ultras often rivals that of larger mountain races, proving that one does not need towering peaks to accumulate monumental vertical suffering. The terrain’s damp nature ensures that mud is often a central, hilarious, and utterly unavoidable obstacle in any Belgian ultra-marathon.

Whether you are battling the constant vertical changes in Wallonia or traversing the historic, rugged trails near Bastogne, Belgian ultra-running delivers a fierce, technical, and profoundly satisfying adventure. It’s a subtle form of mountain running that teaches you that the greatest vertical challenge might just be found in a forest you thought was flat.