Lucassen's greatest achievement was in 2018 when she won the bronze medal in the half-heavyweight category up to 78 kg during the Judo Grand Prix in The Hague, competing against Marhinde Verkerk.

[5] On 13 October 2019, she won gold in the under 78 kg weight class at the Women's Continental Open in Tallinn, Estonia.

During the Junior European Championships in 2016 in Málaga, Lucassen sustained a serious injury, tearing her cruciate ligaments.

In an interview, she mentioned being inspired by the festive celebration of swimmer Pieter van den Hoogenband's Olympic victory at the Market Square in Geldrop.

[6] Lucassen suffered from depression and, due to the COVID-19 pandemic in the Netherlands, she had been unable to practice judo since 15 March 2020.