[1] Gnafaki attended Gymnastics Academy in Serres before turning her focus fully to athletics and the 400m hurdles.

She then accepted a scholarship to attend the University of Akron, before returning to Greece to base herself in Chania, Crete.

[2][3] In 2021, she ran 57.00 to win the 2021 Balkan Athletics Championships, the time placed her fourth on the all-time Greek list for the 400m hurdles.

[5] She competed at the 2022 European Athletics Championships in Munich, Germany and ran a new personal best time of 56.14 seconds.

[citation needed] She was selected for the 2023 World Athletics Championships in Budapest in August 2023 and ran a seasons best time of 56.18.