Ekaterina Chayka-Rubinstein has won numerous competitions, including the Lieder Prize at the Concours international chant-piano Nadia et Lili Boulanger in Paris in Paris (2019), Third Prize in theInternational Lieder Competition in Stuttgart (2020), First Prize at the International Anton Rubinstein Competition (2019) and First Prize of the 19th Maritime Music Competition (2018), where Brigitte Fassbaender called her “A beautiful, very young talent with great charisma." She was awarded First Prize in the junior category at the National Singing Competition in Berlin at the age of 18 (2016),Third Prize and the Prize of the Friends of Young Musicians Germany at the Felix Mendelssohn-Bartholdy University Competition (2020) and the Special Prize of the Society of Friends of the Operahouse at the singing competition at Hanover Hochschule für Musik, Theater und Medien (2021). Since 2019, Ekaterina Chayka-Rubinstein and pianist Maria Yulin have performed as a Lied Duo, winning awards at the Concours international chant-piano Nadia et Lili Boulanger in Paris and at the12th International Art Song Competition in Stuttgart. In 2021, they performed together at the Hitzacker Sommerliche Musiktage and Stuttgart Liedherbst and took part in a masterclass at the Schwarzenberg Schubertiade. They were awarded the Association Friends of the International VocalCompetition 's-Hertogenbosch Prize at the 54th International Vocal Competition LiedDuo. Ekaterina Chayka-Rubinstein has performed with orchestras including Konzerthausorchester Berlin and under the baton of conductors such as Howard Arman and Julien Salemkour.