[1] He was named All-Metro by the Star Tribune as a senior after posting an 8–2 record with a 0.50 ERA and 112 strikeouts in 72 innings pitched.
[9] The San Diego Padres selected Mazur 53rd overall in the 2022 Major League Baseball draft.
[11] In 2023, Mazur split his first professional season between the High–A Fort Wayne TinCaps and Double–A San Antonio Missions.
He made 24 appearances (18 starts) for the two affiliates, accumulating a 6–4 record and 2.81 ERA with 90 strikeouts across 96 innings pitched.
On July 30, 2024, the Padres traded Mazur, Graham Pauley, Robby Snelling, and Jay Beshears to the Miami Marlins in exchange for Bryan Hoeing and Tanner Scott.