LaCombe attended Shattuck-Saint Mary's where he helped SSM win the 2016 USA Hockey Youth Tier I 14 U national championship. During his senior year in the 2018–19 season he set a school record for points by a defenseman with 89 points during the 2018–19 season.[2][3]
Collegiate
LaCombe began his collegiate career for the Minnesota Golden Gophers during the 2019–20 season. During his freshman year he recorded three goals and ten assists in 37 games and led all Big Ten freshman defenseman with 61 blocked shots and ranked second in scoring. He was subsequently named to the Big Ten All-Freshman Team.[4]
On April 10, 2023, LaCombe was signed by the Anaheim Ducks to a two-year, entry-level contract.[1] On April 11, he made his debut against the Vancouver Canucks in a 2–3 loss.[8] On January 20, 2024, LaCombe scored his first NHL goal against the San Jose Sharks in a 3–5 loss.[9]