Kammala jumla mai zuwa: Colazingari ya lashe lambar zinare uku a Gasar Zakarun Duniya ta U23 a cikin ƙungiyoyin C1 (2015) da C1 (2012, 2014). Lambobin mutum biyu sun sa ya zama na farko da ya lashe kambin sau biyu, nasarar da Nicolas Gestin ya samu a 2021. Roberto ya kuma lashe lambobin yabo guda biyu a Gasar Zakarun Turai a gasar C1 tare da tagulla a 2017 da azurfa a 2021 a Tacen da Ivrea, bi da bi. Mafi kyawun sakamakon gasar zakarun duniya shine 5th (C1: 2017, Pau) da 42nd (C2:
2011, Bratislava). Roberto ya kasance wani ɓangare na nasara sau uku na tarihi ga Italiya, inda ya lashe zinare a C1 a gasar cin kofin duniya ta Canoe Slalom ta 2019 a Tacen don rakiyar Stefanie Horn da Giovanni De Gennaro na zinare na zinare a cikin mata da maza K1.