In 2023 Grek was selected to enter the Hungarian junior group along Panni Antal, Boglarka Horvath, Georgina Koszegi-Kohary and Vivien Zsuzsanna Rakamazi. In May they competed at the European Championships in Baku, being 9th in the All-Around and 8th with 5 ropes.[2][3] In July they took part in the 2nd editions of the Junior World Championships in Cluj-Napoca, finishing 10th in the All-Around, 12th with 5 balls, 9th with 5 ropes and 10th in teams.[4]
In October 2024 she was selected along Szulamit Greta Bunda, Reka Barbara Titonelli, Georgina Koszegi-Kohary and Boglarka Barkócz for the Gymnasiade in Bahrain, winning bronze in the All-Around, with 5 hoops and with 10 clubs.[5][6][7][8]
She became a senior in 2025, being incorporated into the rooster of the national senior group, making her debut at the World Cup in Baku where Hungary was 9th overall and 10th with 5 ribbons.[9] In May competing at the European Cup stage in Burgas along Mandula Virag Meszaros, Monika Urban-Szabo, Dora Szabados, Dalma Pesti and Julia Farkas, she won bronze with 5 ribbons and with 3 balls & 2 hoops.[10] In early May the group won bronze in the All-Around at the European Championships in Tallinn.[11][12][13]
Hungary 
Hungary 
