Marlēna Keine is the laureate of several international singing competitions. She is 1^st Prize winner in international Anders Wall scholarship competition in Sweden,  3^rd Prize winner at the Inese Galante Vocal Competition (2016), Finalist of the 35^th International Hans Gabor Belvedere Competition (2016), 1^st Prize winner at the Masterworks Vocal Competition in the USA (2015), 2^nd Prize winner at the Mart Saar Singing Competition in Estonia (2014), 2^nd Prize winner at the Oksana Petrenko Competition in Ukraine (2011) and 3^rd Prize winner at the Alfrēds Kalniņš Vocal Competition (2010). She has participated in the master classes with Irina Gavrilovici, Joy Mammen, Irena Milkeviciute, Barbro Marklund-Petersone and Christian Immler a. o.