During the
2022–23 season, Molendyk recorded nine goals and 28 assists in 67 games for the Saskatoon Blades. During the playoffs, he recorded three goals and five assists in 18 games, and helped the Blades advance to the Eastern Conference finals. He shared the lead for goals and finished second in points and assists among WHL defencemen in the playoffs. On July 6, 2023, Molendyk was signed to a three-year, entry-level contract with the Nashville Predators. On January 6, 2025, Molendyk, along with
Misha Volotovskii, was traded to the
Medicine Hat Tigers in exchange for two players and five draft picks. He immediately assumed a major role in Medicine Hat's defence corps in the regular season, and continuing into their deep run in the playoffs. The team ultimately reached the WHL Finals, where they defeated the
Spokane Chiefs to claim the
Ed Chynoweth Cup as league champions. While playing with the Tigers, Molendyk had 5 goals and 21 assists in 28 regular season games and 4 goals and 16 assists in 18 postseason games. ==International play==