With aspirations to contribute with the Avalanche straight away, Byram attended Colorado's 2019 rookie and main roster training camp in preparation for the 2019–20 season. After completing his first camp with a tentative showing, Byram was reassigned by the contending Avalanche back to junior to continue his development with the Vancouver Giants on September 26, 2019. After an initial slow start offensively, concentrating on the defensive aspects of his game, and with a weakened Giants team from previous seasons, Byram totalled just 3 goals through the first 27 games before leaving for the 2020 World Junior Championships.