Nikolaidou represented Greece,[1][2][3][4][5] along with Sofia Asoumanaki at the 2016 Summer Olympics in Rio de Janeiro, Brazil, finishing in the 4th place (double sculls).

[21][22][23] Before joining the Greek National Team of Rowing, she was a swimming athlete.

In 2016,[29] she was admitted to the School of Physical Education and Sports Science (TEFAA) of the Aristotle University of Thessaloniki.

In 2021, she started studying at the private institute of vocational training IEK ALFA[30][31] for the 2-year sports coaching programme.

This biographical article relating to Greek rowing is a stub.