Becoming passionate about the sport at the age of 4, Valerio jumped on his first bike when he was 5 and only two years after he achieved his first important result, winning the 50cc Italian Championship. When he was 8 he took part in the 65cc Italian Championship, finishing it with a 2^ place overall.

In 2014 the young rider became an athlete of national interest and in 2016 he won the 65cc Minicross Italian Championship. The year after he achieved the 2^ place overall in the 85cc Junior Italian Champion. In the following years, 2018 and 2019, Valerio conquered more than 2 titles per season, becoming 85cc Italian Champion and European Champion with the National Team. In 2019 he also reached the highest result of his career, winning the title of 85cc World Champion.