Martins first International competition came at the 2017 South American U20 Championships, where she won double gold in the 100m and 200m. Martins ran for Brazil at the 2017 IAAF World U18 Championships, finishing 4th in the 100m. She also competed at the 2018 IAAF World U20 Championships, reaching the finals in the 100m event and the 200m event. Martins competed at the 2019 South American U20 Championships where she won gold in both the 100m and 200m events.