Neiva debuted at the 2019 Junior Pan American Rhythmic Gymnastics Championships, taking 7th place.[3] Then she competed at the Junior World Championships in Moscow, where she ended 26th in teams and 29th with clubs.[4][5]
As a senior she participated in the World Championships in Kitakyushu, ending 35th in the All-Around, 26th with hoop, 27th with ball, 51st with clubs and 38th with ribbon.[6]
At the Baku World Cup in 2022 she was 38th in the All-Around, 41st with hoop, 33rd with ball, 31st with clubs and 34th with ribbon.[7][8] In Portimão she ended 34th in the All-Around and with hoop, 27th with ball, 29th with clubs and 41st with ribbon.[9] In Pesaro she was 27th in the All-Around, 25th with hoop, 31st with ball, 27th with clubs and 29th with ribbon.[10] In July she took part in the Pan American Championships in Rio de Janeiro being 11th in the All-Around and winning silver in teams,[11][12] and the World Games in Birmingham taking 17th place with hoop and ball and 19th with clubs and ribbon.[13] In the last World Cup stage of the year in Cluj-Napoca she was 27th in the All-Around, 28th with hoop, 26th with ball, 27th with clubs and 22nd with ribbon.[14]
In 2023 she competed at the South American Rhythmic Gymnastics Championships where she won gold in teams (both individual and combined), silver with hoop and bronze in the All-Around as well as with ball and ribbon.[15]
At the 2024 Brazilian Championships she won bronze in the All-Around, with hoop and with clubs.[16]
In September 2025 she was selected for the South American Championships in Cochabamba, winning silver in teams (with Emanuelle Felberk and Samara Sibin), with ball and in all-around teams, as well as bronze with ribbon.[17][18]