Mason McCoy Bio
Mason Steven McCoy is an American professional baseball infielder for the San Diego Padres of Major League Baseball (MLB). He debuted in MLB for the Toronto Blue Jays in 2023 after progressing through the minor league systems of the Baltimore Orioles and Seattle Mariners organizations. McCoy is recognized for his defensive versatility in the middle infield and his speed on the basepaths.
Born on March 31, 1995, McCoy has built his career on steady development across multiple levels of professional baseball. A shortstop by trade, he has spent more than half a decade refining his craft in the minor leagues before earning his first extended MLB opportunity.
Early Life and Background
Mason Steven McCoy was born on March 31, 1995, and grew up in the central Illinois community of Washington. He attended Washington Community High School, where he graduated in 2013. Beyond baseball, McCoy was a multi-sport athlete, earning all-conference honors in both basketball and soccer during his high school years.
He has two younger siblings, and his family supported his athletic pursuits from a young age. McCoy’s combination of hand-eye coordination, footwork, and competitive drive translated across multiple sports, giving him a well-rounded athletic foundation before he committed fully to baseball.
Path to Baseball
Following high school, McCoy attended Illinois Central College, where he played college baseball and continued to develop his skills as an infielder. During the summer of 2015, he played for the La Crosse Loggers of the Northwoods League, where he was named the league’s Most Valuable Player. That summer performance helped elevate his profile among professional scouts.
McCoy transferred to the University of Iowa to play for the Iowa Hawkeyes baseball program. After going undrafted in the 2016 MLB draft, he returned to Iowa for his senior season, serving as a team captain. In that final collegiate year, he hit .328 with five home runs and 34 runs batted in (RBI), drawing the attention of Major League organizations.
Mason McCoy Career
Early Career (2017–2019)
The Baltimore Orioles selected McCoy in the sixth round, with the 188th overall pick, of the 2017 Major League Baseball draft. He made his professional debut that year with the Low-A Aberdeen IronBirds, playing in 53 games and batting .301/.383/.409 with one home run and 29 RBI. The strong start established him as a promising middle-infield prospect within the Orioles system.
In 2018, McCoy advanced to the Single-A Delmarva Shorebirds, where he played 124 games and hit .266/.332/.369 with 4 home runs, 47 RBI, and 13 stolen bases. He split the 2019 season between the High-A Frederick Keys and Double-A Bowie Baysox, combining to hit .290/.345/.378 with 4 home runs, 48 RBI, and 13 stolen bases across 132 games. The 2020 minor league season was canceled due to the COVID-19 pandemic, and McCoy returned to action in 2021 with the Triple-A Norfolk Tides, batting .221/.288/.368 with 9 home runs, 43 RBI, and 13 stolen bases in 112 games.
Baltimore Orioles and Seattle Mariners Era (2017–2023)
On April 7, 2022, the Baltimore Orioles traded McCoy to the Seattle Mariners for cash considerations. He spent the 2022 season with the Triple-A Tacoma Rainiers, playing 124 games and hitting .256/.332/.473 with career-highs of 21 home runs, 63 RBI, and 22 stolen bases. Defensively, he set the record for the highest fielding percentage ever for a Tacoma shortstop, committing only 6 errors for a .986 fielding percentage.
McCoy returned to Tacoma to begin 2023 and hit .234/.330/.407 with 11 home runs, 55 RBI, and 20 stolen bases in 87 games. On July 26, 2023, the Mariners traded him to the Toronto Blue Jays in exchange for Trent Thornton, and he was assigned to the Triple-A Buffalo Bisons. Following an injury to Bo Bichette, the Blue Jays selected McCoy’s contract on August 29, 2023, and he made his MLB debut the following day, pinch hitting for Ernie Clement. In 6 games with Toronto he appeared mostly as a defensive replacement or pinch runner. He was designated for assignment on September 20 and sent outright to Buffalo on September 22.
San Diego Padres Era (2024–Present)
On November 19, 2023, McCoy signed a minor league contract with the San Diego Padres that included an invitation to spring training. He began 2024 with the Triple-A El Paso Chihuahuas, slashing .260/.329/.382 with five home runs, 50 RBI, and 25 stolen bases across 108 games. On August 21, 2024, the Padres selected his contract, and he made his first start for San Diego the following day. In 19 games for the Padres that season, he slashed .204/.278/.245 with three RBI and one stolen base. He was non-tendered on November 22, 2024, becoming a free agent, before re-signing with the Padres on a minor league deal on December 6, 2024.
The Padres selected McCoy’s contract on March 22, 2025, and optioned him to Triple-A El Paso. He was recalled on April 21 following Luis Arráez’s concussion, playing in four games before landing on the injured list on April 29 with a dislocated finger. He returned to Triple-A on May 20. McCoy was optioned to Triple-A El Paso to begin the 2026 season.
Driving Style and Strengths
McCoy is best known for his defensive reliability in the middle infield, particularly at shortstop, where he has posted elite fielding percentages at every level. His offensive game is built around contact, plate discipline, and speed, with consistent stolen-base production throughout his minor league career. He has also shown the ability to add occasional power, as evidenced by his 21-home-run season in 2022 with the Tacoma Rainiers.
Notable Events and Milestones
McCoy’s MLB debut on August 30, 2023, with the Toronto Blue Jays marked the culmination of a six-year minor league journey. His 2022 season in Tacoma, where he set the franchise record for shortstop fielding percentage and posted career highs across multiple offensive categories, stands as one of the defining campaigns of his career. His first start for the Padres on August 22, 2024, represented another career milestone as he established himself within a new organization.
Mason McCoy Career Wins
Throughout his professional career, Mason Steven McCoy has accumulated a steady body of work in the minor leagues, highlighted by consistent defensive performance and offensive contributions. While he has not accumulated a large volume of MLB at-bats, his track record at the minor league level has made him a reliable organizational depth piece.
Minor League Highlights
McCoy’s most productive minor league season came in 2022 with the Triple-A Tacoma Rainiers, where he set career highs with 21 home runs, 63 RBI, and 22 stolen bases. His 2024 campaign with the Triple-A El Paso Chihuahuas was also strong, as he slashed .260/.329/.382 with five home runs, 50 RBI, and 25 stolen bases in 108 games. Across his minor league career, McCoy has consistently ranked among his team’s stolen-base leaders.
Other Wins and Performances
McCoy was named the Northwoods League Most Valuable Player in 2015 while playing for the La Crosse Loggers, an early career highlight that signaled his potential. He was also a team captain in his senior season at the University of Iowa, batting .328 with five home runs and 34 RBI. His consistent all-conference honors in basketball and soccer during high school reflect his well-rounded athletic background.
Mason McCoy Family
Family Background and Racing Lineage
McCoy grew up in a supportive household in Washington, Illinois, with two younger siblings. While his family is not widely documented in public sources, his upbringing in central Illinois and his multi-sport background in high school suggest a strong family emphasis on athletics and personal development.
Personal Life
Beyond baseball, McCoy has been recognized for his all-conference performances in basketball and soccer during his time at Washington Community High School. He is known primarily for his dedication to professional baseball and his continued development within the San Diego Padres organization.
2025 Season Performance
The 2025 season marked McCoy’s second year in the San Diego Padres organization. He began the year in the minor leagues before earning a brief MLB recall on April 21, 2025, following Luis Arráez’s concussion. In his short big-league stint, he appeared in four games, starting once and striking out in four of five plate appearances, before suffering a dislocated finger that sent him to the injured list on April 29.
McCoy returned to Triple-A El Paso on May 20, 2025, to continue his work with the Chihuahuas. His role within the organization remained that of a versatile middle-infield depth option capable of stepping in when injuries thinned the Padres roster. The combination of his defensive reliability and speed continued to be the foundation of his value to the club.
Looking ahead, McCoy was optioned to Triple-A El Paso to begin the 2026 season, indicating that the Padres view him as a key depth piece heading into the new campaign. His experience across multiple organizations and his consistent minor league production position him as a candidate for further MLB opportunities when needs arise at the big-league level.
