Semi-Marathon de Dour
Race snapshot
Race Day
41–55°F · Feels cool
Total elevation gain
Moderate rolling hills · Net elevation change +0 ft
Crowd Rating
Moderate spectator support
The Lowdown
The Semi-Marathon de Dour is an evening half marathon in Dour, Hainaut, organized by the nonprofit 21 RunRun and part of the 21KM.be challenge of Belgian half marathons. The 2027 edition is on Saturday, April 3, with a new course for its fifth anniversary. The 2026 edition started at 18:30 from the Dour sports complex, ran one loop with 195 meters of climbing, and had a 4-hour time limit. Aid stations stand every 5 km. The entry includes a signed t-shirt, a medal and a free shower. The 2026 price for the half marathon rose in steps from 20 to 35 euros as the date approached.
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