The religious festival dedicated to San Costantino, which is held on the 5th of August, is undoubtedly the one that is most anticipated by the community of Genoni. After the service, an important religious procession takes place, which is accompanied by a parade of traditional costumes and a group of more than a hundred horsemen. The religious celebrations are followed by the civil festivities, the center of which has always been the horse races. After the races, the evening concludes with folklore shows, music and traditional dances in the town square.
The importance of this anniversary was reported by the Angius/Casalis Dictionary (1833/1856). The few lines dedicated to it state the following: The main festival, which is held on August 5th and includes numerous foreign participants, is for San Costantino.