As a single skater for Italy, he is the 2017 Egna Spring Trophy champion and competed on the ISU Junior Grand Prix circuit.

They were second in the short program and won the free skate, taking the silver medal overall and finishing less than four points behind Italian national champions Della Monica/Guarise.

Third in the short program, they won the free skate despite two jump errors, taking the silver medal overall and the first of three pairs berths available at the event.

[7] Zandron obtained his Spanish citizenship on December 29, 2021, making the team eligible to represent Spain at the Winter Olympics.

[8] Competing at the 2022 Winter Olympics in the pairs event, Barquero/Zandron were eleventh in the short program, receiving only a base level on their death spiral.

[11][12] Her team suggested that the most likely source of the substance was the Trofodermin that she applied to a cut between her fingers caused by her skate blades during the short program.

[15] It was subsequently announced that the pair would split their time training under Nolan Seegert in Berlin, Dmitri Savin and Fedor Klimov in Sochi, and Bruno Marcotte in Oakville, Ontario.

[18] The pair were subsequently named to the 2025 World Championships team on the condition that they are able to earn the minimum technical element scores.