Run against cancer for twelve relentless hours at the **12h contre le Cancer on Saturday, March 21, 2026**. Organized by the Association Ludréenne Trail Et Running (A.L.T.E.R) on the forested plateau of Ludres, this deeply meaningful endurance event transforms every loop into a donation, every stride into solidarity. The battleground is a demanding 6.7km circuit winding through the wooded trails and prairie paths of Ludres and Messein, each lap delivering 268 metres of punchy, runnable elevation. Choose your weapon: the "Non Stop" format challenges solo runners to maximise laps within 12 hours, while the "Backyard" Solo and Team formats impose the cruel mercy of hourly starts—complete a lap within 60 minutes or wait, watching the clock, for the next departure.
Five distinct épreuves ensure every capacity finds its place. The 13.5km Course Nature offers a single-loop trail experience with 280m of gain, no time limit, and 140 eager entrants. Nordic walkers claim a 10.5km route through the same rolling landscapes, while the Marche Populaire provides a non-chronométrée, no-bib option for just €2—pure participation, pure purpose. This year, A.L.T.E.R doubles down on its ecological and solidarity charter, minimizing swag production to maximize donations to the Ligue Contre le Cancer. Every registration, every lap, every hour spent on those eastern French trails translates directly into funding for research, patient support, and the collective fight against a disease that touches us all.
The 8:00 AM start unleashes 12 hours of human endeavour, the plateau de Ludres becoming a theatre of perseverance under grey Lorraine skies. By 20:00, when the final cutoff sounds, some will have completed 12 laps—84km, 3,200m of ascent—while others will have given what they could, their contribution measured not in distance but in heart. Backyard teams of three navigate autonomous relay strategies, the baton passing hourly, the shared burden lightened by camaraderie. All are tracked with precision by Wanatime, whose chip timing ensures every tour is counted, every effort honoured. Registration remains open for the Course Nature, the walks, and limited Backyard slots—but the Non Stop is already a battlefield of just 25 dossards. Secure your place, charge your frontale, and prepare to run not for a buckle, but for a cure.
Mar 21, 2026
Distance — 12H
Type — Running
08:00
€75.00
Mar 21, 2026
Distance — 12H
Type — Running
08:00
€50.00
Mar 21, 2026
Distance — 13.5K
Type — Running
10:30
€12.00
Mar 21, 2026
Distance — 10K
Type — Running
10:45
€10.00
These values represent the 3-year monthly averages for March in Ludres.
Ludres is a commune in the Meurthe-et-Moselle département in north-eastern France.
Read more launchExplore other exciting events happening in this same region.
location_on Vandœuvre-lès-Nancy, Grand Est, FR
calendar_today Mar 01, 2026
location_on Villers-lès-Nancy, Grand Est, FR
calendar_today Mar 22, 2026
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