Vågberg competed for Norway in two World Junior Curling Championships, playing second on Team Magnus Ramsfjell. At the 2016 World Junior Curling Championships, the team finished with a 5-4 record, missing the playoffs. At the 2017 World Junior Curling Championships, the team had much more success, finishing the round robin with a 6-3 record, and then after losing to Scotland in the 3 vs. 4 game, they would defeat the Scots in a re-match to claim the bronze medal.