He has a record of 2.29 m, obtained in Paris on 5 March 2011. He was a finalist (7th) at the World Junior Championships in Athletics in Bydgoszcz on 13 July 2008. After entering the sports group of Centro Sportivo Aeronautica Militare, he took part in the first European Championships in Barcelona 2010, reaching 9th place with 2.23 m. At the European indoor games of Paris in 2011, Fassinotti finished 6th, obtaining his personal best of 2.29 m. He trains at the "Club Primo Nebiolo" of Turin with the company SAFA.