BIOGRAPHY
Zach Muckenhirn was born February 27, 1995, in Delano, Minnesota. He is a pitcher in the MLB.
On May 1, 2021, Muckenhirn signed a minor league contract with the Chicago White Sox organization. He spent the year with the Double-A Birmingham Barons, appearing in 30 games and posting a 3–1 record and 1.77 ERA with 42 strikeouts in 40+2⁄3 innings pitched.
In 2022, Muckenhirn made 47 appearances for the Triple-A Charlotte Knights, registering a 3–1 record and 3.11 ERA with 56 strikeouts and two saves in 55 innings. He elected free agency following the season on November 10, 2022.
On November 23, 2022, Muckenhirn signed a minor league contract with the New York Mets organization. He competed for a bullpen spot in Spring Training, but did not win the job and was assigned to the Triple-A Syracuse Mets to begin the 2023 season. In six appearances to start the year, he posted a 0.77 ERA with four strikeouts and one save in 11+2⁄3 innings. On May 1, 2023, the Mets selected Muckenhirn to the 40-man roster and promoted him to the major leagues for the first time in advance of the team's doubleheader against the Atlanta Braves. He debuted on May 3, tossing 1+2⁄3 innings of one-hit, no-run ball against the Detroit Tigers. He made 3 appearances for the Mets, surrendering four runs on 11 hits and two walks with three strikeouts in six innings pitched. On July 3, Muckenhirn was designated for assignment after Elieser Hernández was activated from the injured list.
On July 3, 2023, the Mets traded Muckenhirn to the Seattle Mariners in exchange for Chris Flexen and Trevor Gott.
