[1][2] He became interested in motorcycling at a very early age, where he was introduced by his maternal uncle Mariano, who competed at a regional level in motocross events.
[6] [7][8] In 2021, he debuted in the Dakar Rally with a KTM and finished the event in thirteenth place, in addition to being the second best rookie and winning the Marathon category.
In 2023, he joined the Monster Energy Honda team, with which he won the Baja Aragón again and obtained another victory in Desafío Ruta 40,[7][8] in addition to qualifying thirteenth in the Dakar Rally again.
In 2024, Schareina suffered a fall in the Dakar Rally in which he fractured his wrist, which prevented him from scoring points and participating in the Abu Dhabi Desert Challenge.
[9] That year, Schareina also won the FIM E-Xplorer World Cup, a new championship reserved for electric motorcycles.