Nkansa qualified from her 200m heat at the 2022 European Athletics Championships in a time of 23.08 and was eleventh fastest in the semi-finals running 23.28.

This matched her result in the 100m as she qualified from the heat to the semi-finals and also finished eleventh fastest in a time of 11.39 seconds.

[9] She was subsequently selected for the 2023 European Athletics Indoor Championships in March 2023, in which she qualified through the rounds for the final.

[11] At the 2023 European Athletics U20 Championships in Espoo, Finland, Nkansa won the gold medal in the 200 metres.

[22] She also ran in the women's 4 × 100 metres relay, the Belgian team also having qualified for the 2024 Summer Olympic Games via the World Athletics Rankings.