Ultra Trail Kempen (UTK) 160 km is a trail race held on October 31 – November 1, 2026, starting from Sporthal Mintjens in Malle, Antwerp Province, Belgium. The race begins on Halloween evening and runs through the night across the flat heathlands and pine forests of the Kempen region.
The Ultra Trail Kempen (UTK) course covers 160 km with 357 m of total elevation gain — 2.2 m/km — making it one of the flattest 160 km ultras in Europe: for context, even the Autumn 100 (itself among the flattest 100-milers in the DTR database) accumulates 9.3 m/km. There is no meaningful climbing on this course; the challenge is pacing, sleep management, and sustained forward movement across 35–45+ hours. Entry costs €0.81/km (€130). The race sold out for 2026 and operates a waiting list.
Organised by Trail Buddies Kempen, the event offers a run or walk variant. Entry requires at least one completed 50 km trail race. Two drop-bag locations and aid stations approximately every 15–20 km (some with hot meals) support the field. Antwerp Airport (ANR) is 36 minutes away by road. It suits experienced endurance runners or hikers comfortable with long flat efforts, night sections, and late-autumn Belgian conditions — cold, wet, and potentially foggy.