The 20.89 km de Crosne is a running event in Crosne, France, held on a Sunday in September. Now in its second edition, the adult program offers runners three distances: 5 km, 10 km, and a 21 km race, with starts scheduled throughout the morning. The 5 km is open to participants aged 13 and older, the 10 km from age 15, and the 21 km from age 17.
The redesigned route incorporates town streets and parkland, including Rue Remonteru and a section through the Bois de la Grange. The event also includes free 700 m, 1,500 m, and 3,000 m races for children aged 6 and up. Bib pickup is at Stade Henri Hurt. Nearby streets will have traffic controls and detours during the races. VK SPORTS EVENEMENTS, in conjunction with the City of Crosne, organizes the event.