La Marlienne takes place in November in Marly, a commune in Moselle near Metz in France’s Grand Est region. The adult race is straightforward: a single 10 km event, primarily on roads, with a flat course. It follows a loop beginning in the town center and encircling Marly.
The same event includes children’s races under the name La Marlienne Kids, offering short distances for school-aged participants: 400 m for kindergarteners, 800 to 1000 m for elementary and middle school pupils up to 6th grade, and 2000 m for secondary school students. The race has been held since 2016. Previous results are archived, and all proceeds support ELA, an organization funding research into leukodystrophies. Online registration is managed via GoTiming, with a reduced fee for pre-registration compared to race-day entry.