The Ronde du château d'eau is a road-running series in Genillé, Indre-et-Loire, France, held annually on November 11. The main race covers 9.3 km, with 6.3 km and 2.5 km races also offered, alongside a 1 km children's run. This structure caters to local runners and families, not exclusively seasoned competitors.
The Amicale Ronde du château d'eau Genillé coordinates the event, providing refreshments and changing facilities. The 9.3 km course starts and finishes in Beaulieu-lès-Loches, and the race is named after the local water tower. This series has been held for approximately 25 years, and organizers have indicated it might conclude soon.