On April 20, 2022, Vanacker was selected 23rd overall by the Hamilton Bulldogs in the 2022 OHL Draft[1] and signed with the team on May 21, 2022.[2] In his rookie 2022–23 season, he tallied four goals and 12 assists over 55 games with the Brantford Bulldogs. The following year, 2023–24, he enjoyed a breakout season, posting 36 goals, 46 assists, 22 power‑play points, and five shorthanded goals in 68 regular‑season games. He finished as the team's leader in both goals and total points and ranked second in assists. In the playoffs, he added three goals and four assists across six games.[3]
On June 28, 2024, Vanacker's strong junior performance and offensive upside led to him being selected 27th overall by the Chicago Blackhawks in the first round of the 2024 NHL Entry Draft.[4][5] After several weeks of evaluation and negotiations, the Blackhawks officially signed him on August 5, 2024, to a standard three‑year entry‑level contract.[6]
On April 16, 2024, Vanacker earned the honour of being selected to join Canada's under-18 national team for the prestigious 2024 IIHF World U18 Championships.[7] Throughout the tournament, he contributed one goal in six games, demonstrating his skill and versatility as a forward. More importantly, Vanacker's consistent play helped Canada navigate through tough competition, culminating in the team winning the gold medal.[8]
