She represented Argentina at the 2020 Summer Olympics after Martina Dominici, the original qualifier, tested positive for a banned substance.

[1] Magistrati competed at her debut Argentine Championships in 2017, placing eleventh all-around in the junior division.

[4] She ended the year competing at the South American Youth Games where she helped Argentina win the team competition.

[9] In October, Magistrati competed at the Junior South American Championships where she helped Argentina finish second as a team and individually she placed seventh in the all-around.

[12] She made her senior international debut at the South American Championships, where she placed first in the all-around and helped Argentina win the team title.

She won silver on the balance beam during the event finals and placed seventh on floor exercise.

Also, because teammate Martina Dominici finished ahead of her, Magistrati did not qualify an individual berth to the 2020 Summer Olympics due to the one-per-country limit.

[22] After the Olympics, she competed at the South American Championships and helped the Argentine team win the silver medal behind Brazil.

[26] Her final competition was the Argentine Championships where she won the gold medals in the all-around, balance beam, and floor exercise.