L'Ersteinoise is an evening 5 km race and walk in Erstein, starting at 7:30 PM. It is a short, local-format event rather than a long road race, with runners and walkers using the same distance.
Race-day check-in is centered at Salle Herinstein on Rue du Vieux Marché, where participants collect bibs and t-shirts and can use changing rooms. The event also has entertainment, refreshment stands, small food stalls, and departmental label status.