Pedzisa mutsara unotevera: Muna 2018, Stefanidi akawedzera muunganidzwa wake wemenduru, achitora nzvimbo yechitatu (4.80 m.) paWorld Indoor Championships muBirmingham, uye nzvimbo yekutanga (4.85 m) paEuropean Championships muBerlin. Akakunda
2018 Diamond League series (4.87 m) kwegore rechitatu rakateedzana uye akapedza mwaka aine nzvimbo yechipiri (4.85 m) kuseri kwaAnzhelika Sidorova, achimiririra Europe kuContinental Cup.