The Red Wings did not present a qualifying offer to Mazur on Monday, making him an unrestricted free agent, PuckPedia reports.
Mazur did not register a point over eight games with Detroit in 2025-26. The 24-year-old showed well with AHL Grand Rapids, though, producing 11 goals and 16 points over 16 regular-season games. He also had five goals and an assist in eight playoff contests with the Griffins. Mazur was a third-round selection (No. 70 overall) in the 2021 NHL Entry Draft.