Maria Luiza demonstrated early promise at the juvenile level, earning podium finishes at the IBJJF World Championship in 2018 and 2019, along with a runner-up finish at the CBJJ Brazilian Nationals in 2019. It was at the brown belt level, however, that she emerged as one of the most dominant competitors of her generation. In 2023, competing across the Peso Pena (58.50 kg) and Peso Leve (64 kg) divisions, she delivered a landmark season that announced her arrival at the elite tier of the sport.
The centerpiece of that brown belt campaign was a gold medal at the 2023 IBJJF World Championship, paired with a title at the 2023 CBJJ Brazilian Nationals — establishing her as a dual-crown champion at one of the sport's most competitive belt levels. She also reached the podium at the 2023 IBJJF Pan Championship as runner-up and claimed a third-place finish at the 2023 IBJJF European Open, demonstrating exceptional consistency across the full international circuit. Her affiliation with Almeida Jiu-Jitsu, which holds a formal partnership with Atos, has allowed her to represent the Atos banner in international competition — granting her access to one of the sport's most decorated competitive programs.