At the 2012 World Short Course Championships, he won the gold medal in the 100 metre breaststroke.

On 25 July 2011 won the silver medal at the World Championships in Shanghai in the 100 m breaststroke, beaten by Alexander Dale Oen and in front of Cameron van der Burgh, also establishing two Italians records: in the semi-final with a time of 59.83 and in the final with a time of 59.42.

On 27 July 2011 has also won the silver medal in the 50m breaststroke, behind Brazilian Felipe França Silva and again in front of Cameron van der Burgh, also establishing the Italian record in that distance with a time of 27.17.

[1] Once back in Italy, the 4 August has improved the primacy of the Italian and European short course 50m breaststroke in, held by Alessandro Terrin, winning the Italian title in summer leagues.

[2][clarification needed] At the 2022 Mediterranean Games, on the second day of swimming competition, Scozzoli set a new Games record in the preliminaries of the 50 metre breaststroke with a time of 27.17 seconds and qualified for the final ranking first overall.