DuPont played youth hockey in Switzerland and Germany, often playing with his older brother in the 2006-born age group.[1] He played under-18 hockey for the Edge School in the Canadian Sport School Hockey League (CSSHL). In the 2023–24 season, he scored 19 goals and 62 points in 30 games, leading his team and setting a league record for single-season points by a defenceman.[2][3] In the playoffs, he tied the playoff scoring record set by Dylan Guenther with five goals and 16 points en route to a league title and championship MVP award.[4][5]
On April 8, 2024, it was announced that DuPont would receive exceptional player status to enter the Canadian Hockey League (CHL) in the 2024–25 season, becoming the ninth exceptional status player and the third defenceman. He became the second Western Hockey League (WHL) player to receive exceptional status, after Connor Bedard, and the first defenceman.[6][7][8] On May 9, 2024, DuPont was selected first overall in the 2024 WHL prospects draft by the Everett Silvertips, becoming the first top pick in Silvertips history.[9] He signed with the Silvertips on August 6.[10]
From the moment he entered the WHL, DuPont was trusted with a big role on the Silvertips, logging 26 minutes in his debut. He took the trust of his coaches and ran with it, recording eleven points in his first seven games, more than any other exceptional status player through that span except for Bedard.[11]
