Buuxi weedha soo socota: Sanadkii 2018, Stefanidi waxay kordhisay ururinta biladaheeda, iyada oo qaadatay kaalinta saddexaad (4.80 m) ee Koobka Adduunka ee Gudaha ee Birmingham, iyo kaalinta koowaad (4.85 m) ee Koobka Yurub ee Berlin. Waxay ku guulaysatay
2018 Taxanaha Diamond League (4.87 m) sannadkii saddexaad oo isku xigta waxayna ku dhameysatay xilli ciyaareedkii iyada oo ku jirta kaalinta labaad (4.85 m) oo ka dambeysa Anzhelika Sidorova, oo matalaysa Yurub ee Continental Cup.