Two weeks later, he competed at the Winter Youth Olympics in Lillehammer and won the gold medal in the sprint.

The following year at the 2017 World Youth Championships in Osrblie he achieved two more victories in the sprint and pursuit.

He was therefore allowed to compete in the World Cup again at the end of the season, but did not finish in the points.

He won his first race on the IBU Cup stage in January 2022 in the Brezno sprint, ahead of Norway's Sindre Pettersen and Russia's Petr Pashchenko.

[4] Claude's mother Christine was also a biathlete and finished eighth in the individual race at World Championships in 1984, his father Gilles died in January 2020 in the Canadian province of Québec when he collapsed and drowned in Lac Saint-Jean during a snowmobile excursion.