Kammala jumla mai zuwa: Protas ya fara aikinsa a garinsa na Vitebsk. Ya shafe yanayi biyu tare da kungiyar U17 ta Belarus wacce ta taka leda a Vysshaya Liga, gasar ta biyu a Belarus, kafin Prince Albert Raiders ya zaɓe shi a matsayin na 26 a cikin 2018 CHL Import Draft. Ya shiga Raiders don kakar 2018/19, kuma ya gama da maki 40 a wasanni 61. Yana zuwa cikin
2019 NHL Entry Draft Protas shi ne dan wasan Arewacin Amurka na 30, kuma Washington Capitals ta zaba shi na 91. Ya buga wa Prince Albert wasa a kakar 2019-20, wanda aka ƙare da wuri saboda COVID-19; a cikin wasanni 58 yana da maki 80, wanda ya sanya shi na tara a WHL a cikin zira kwallaye kuma mafi girman ɗan wasan Turai.