The races, like the moccoli , are one of the episodes peculiar to the last days of the Carnival. At the sound of the fireworks the carriages instantly broke ranks, and retired by the adjacent streets. All these evolutions are executed with an inconceivable address and marvellous rapidity, without the police interfering in the matter. The pedestrians ranged themselves against the walls; then the trampling of horses and the clashing of steel were heard. A detachment of carbineers, fifteen abreast, galloped up the Corso in order to clear it for the barberi . When the detachment arrived at the Piazza di Venezia, a second volley of fireworks was discharged, to announce that the street was clear.

Almost instantly, in the midst of a tremendous and general outcry, seven or eight horses, excited by the shouts of three hundred thousand spectators, passed by like lightning. Then the Castle of Saint Angelo fired three cannon to indicate that number three had won.