[5] In the event finals, she finished sixth on vault, ninth on the uneven bars, and seventh on the balance beam.

In the event finals, she finished 11th on vault, eighth on uneven bars and floor exercise, and 12th on balance beam.

[12] Brassart first competition of the season was the International Gymnix in Montreal and she placed 29th in the all-around, and the Belgian team finished eighth.

[13] She then competed at the Belgium Friendly and helped the Belgian team win the silver medal behind Romania.

[23] She was selected to compete at the European Championships alongside Nina Derwael, Senna Deriks, and Axelle Klinckaert, and they finished third in the qualification round.

[27] She was then selected to compete at the World Championships alongside Nina Derwael, Axelle Klinckaert, Senna Deriks, and Rune Hermans, and they finished 11th during the qualification round.

[31] Then at the Worms Friendly, the Belgian team won the silver medal behind Germany and Brassart placed tenth in the all-around.

[32] She was then selected to compete at the World Championships alongside Margaux Daveloose, Nina Derwael, Senna Deriks, and Jade Vansteenkiste and they finished tenth in the qualification round.

[38] She was selected to compete at the 2020 Olympic Games alongside Nina Derwael, Lisa Vaelen, and Jutta Verkest.

[40] During the Olympics, a photo of Brassart and Derwael sitting in a split with tennis player Novak Djokovic went viral.

[44] In August, she competed at the European Championships in Munich, where she contributed to Belgium's fifth-place finish in the team final.

[53] At those Games, she finished 37th in the all-around, placing 24th in the uneven bars, 69th in balance beam, and 49th in floor exercise.