Mason McCoy Bio
Mason Steven McCoy (born March 31, 1995) is an American professional baseball infielder who plays for the San Diego Padres of Major League Baseball (MLB). He first reached the major leagues with the Toronto Blue Jays in 2023 before joining the Padres organization, where he has continued to work as a versatile middle-infield option. A 2017 draft pick of the Baltimore Orioles, McCoy has built his career on steady defense, contact hitting, and the ability to play shortstop, second base, and third base.
McCoy has spent more than half a decade moving through the minor leagues and has been recognized for his defensive reliability, including a record-setting fielding season in Triple-A. Although he has not yet cemented a full-time MLB role, his persistence through trades, non-tenders, and minor league contracts has kept him in professional baseball from 2017 onward.
Early Life and Background
Mason Steven McCoy was born on March 31, 1995, and grew up in the United States. He graduated from Washington Community High School in Washington, Illinois, in 2013. During his high school years, McCoy was a multi-sport athlete and also earned all-conference recognition playing basketball and soccer, demonstrating the kind of footwork and hand-eye coordination that would later help him defensively in baseball.
McCoy has two younger siblings, and his family life helped shape his disciplined approach to the sport. After high school, he attended Illinois Central College, where he played college baseball. During the summer of 2015, he played for the La Crosse Loggers of the Northwoods League and was named the league’s Most Valuable Player, an award that helped raise his profile ahead of the MLB draft.
Path to Baseball
Following his standout summer in the Northwoods League, McCoy transferred to the University of Iowa to play for the Iowa Hawkeyes. When he went undrafted in the 2016 MLB draft, he returned to Iowa for his senior year, serving as a team captain and hitting .328 with five home runs and 34 runs batted in (RBI). That senior season cemented his status as a draft-eligible prospect and led to his selection the following year.
The Baltimore Orioles selected McCoy in the sixth round, with the 188th overall pick, of the 2017 Major League Baseball draft. From that moment, his career moved from amateur competition into the professional ranks, where he began a long climb through the Orioles’ farm system.
Mason McCoy Career
Early Career (2017–2019)
McCoy made his professional debut in 2017 with the Low-A Aberdeen IronBirds, appearing in 53 games and batting .301/.383/.409 with one home run and 29 RBI. The strong on-base numbers and contact approach in his first pro season suggested he could advance quickly through the lower levels.
In 2018, he spent the full season with the Single-A Delmarva Shorebirds, playing 124 games and hitting .266/.332/.369 with four home runs, 47 RBI, and 13 stolen bases. The following year, McCoy split the 2019 campaign between the High-A Frederick Keys and the Double-A Bowie Baysox, combining for 132 games and a .290/.345/.378 line with four home runs, 48 RBI, and 13 stolen bases, earning a promotion to Double-A by midseason.
Seattle Mariners Era (2022–2023)
McCoy did not appear in a game during the canceled 2020 minor league season because of the COVID-19 pandemic, then returned in 2021 with the Triple-A Norfolk Tides, where he played 112 games and batted .221/.288/.368 with nine home runs, 43 RBI, and 13 stolen bases. On April 7, 2022, the Orioles traded him to the Seattle Mariners for cash considerations, giving him a fresh opportunity in a new organization.
With the Mariners, McCoy spent 2022 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. He also set the Rainiers’ record for the highest fielding percentage ever by a shortstop, committing just six errors for a .986 mark. He returned to Tacoma to begin 2023 and hit .234/.330/.407 with 11 home runs, 55 RBI, and 20 stolen bases in 87 games.
Toronto Blue Jays Era (2023)
On July 26, 2023, the Mariners traded McCoy to the Toronto Blue Jays in exchange for pitcher Trent Thornton, and he was assigned to the Triple-A Buffalo Bisons, where he produced a .572 OPS over 21 games. On August 29, after an injury to Bo Bichette, the Blue Jays selected his contract and promoted him to the major leagues for the first time.
McCoy made his MLB debut on August 30, 2023, pinch-hitting for Ernie Clement, and appeared in six games for Toronto, mostly as a defensive replacement or pinch runner. He struck out in his only at-bat with the Blue Jays. On September 20, he was designated for assignment following the promotion of Cam Eden, cleared waivers, and was 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 and played 108 games, slashing .260/.329/.382 with five home runs, 50 RBI, and 25 stolen bases. On August 21, 2024, the Padres selected his contract and added him to the active roster, and he made his first start for the club the next day. In 19 games with San Diego, he slashed .204/.278/.245 with three RBI and one stolen base before the Padres non-tendered him on November 22, making him a free agent.
On December 6, 2024, McCoy re-signed with the Padres on a minor league contract. On March 22, 2025, San Diego selected his contract and optioned him to Triple-A El Paso. He was recalled on April 21 following a concussion to Luis Arráez, started one of four games, and struck out in four of five plate appearances before landing on the injured list with a dislocated finger on April 29. He returned to Triple-A on May 20 to continue his work in the Padres system.
Driving Style and Strengths
McCoy is best known for his defensive reliability up the middle, particularly at shortstop, where his 2022 fielding record at Tacoma underscored his sure hands and consistent arm. Offensively, he profiles as a contact-and-speed hitter who draws walks, runs the bases aggressively, and provides lineup flexibility by playing shortstop, second base, and third base. His versatility has allowed managers to use him as a late-inning defensive replacement and a pinch-running option in tight games.
Notable Events and Milestones
Among the most significant milestones of McCoy’s career are his 2017 selection by the Orioles, his MLB debut with the Blue Jays in 2023, and his first major league start with the Padres in 2024. His 2022 season in Tacoma, where he set the franchise’s all-time shortstop fielding record, also stands out as a defining defensive achievement.
Mason McCoy Career Wins
McCoy is a contact-oriented infielder rather than a power hitter, so his career highlights emphasize defensive excellence, on-base skills, and base-running production rather than victory counts. Across the Orioles, Mariners, Blue Jays, and Padres organizations, he has consistently produced double-digit stolen-base totals and posted reliable fielding metrics at shortstop. His progression through four major league organizations is itself a notable achievement for a player who went undrafted out of high school and was a sixth-round pick just one year after going undrafted entirely in 2016.
Minor League Highlights
McCoy’s most productive offensive season came in 2022 with the Triple-A Tacoma Rainiers, when he set career highs with 21 home runs, 63 RBI, and 22 stolen bases while also establishing a franchise record for shortstop fielding percentage. His first major professional season with the Low-A Aberdeen IronBirds in 2017 produced a strong .301 batting average, and his 2019 split assignment to Double-A Bowie confirmed his ability to handle upper-level pitching.
Other Wins and Performances
Beyond his MLB stints with the Blue Jays and Padres, McCoy was named the Northwoods League’s Most Valuable Player in 2015 while playing for the La Crosse Loggers, an early-career honor that helped him earn his first professional contract. He has also earned recognition as a team captain at the University of Iowa and as a multi-sport all-conference selection during his time at Washington Community High School.
Mason McCoy Family
Family Background and Baseball Lineage
McCoy grew up with two younger siblings in a household that supported his athletic development. While he does not come from a well-known baseball family, his high school experience in multiple sports, including all-conference honors in basketball and soccer, helped him build the athleticism that has carried over to his professional infield career.
Personal Life
McCoy attended Illinois Central College before transferring to the University of Iowa, where he completed his senior season as a team captain. His path from a Washington, Illinois high school to professional baseball reflects years of consistent development across amateur, collegiate, and minor league programs.
2025 Season Performance
McCoy entered 2025 with the San Diego Padres on a minor league contract, and the Padres selected his contract on March 22 before optioning him to Triple-A El Paso. After a brief early-season stay in the majors, he was optioned back to Triple-A, where he has continued to play a versatile middle-infield role.
On April 21, the Padres recalled McCoy following a concussion to Luis Arráez, and he appeared in four games, starting once and striking out in four of his five plate appearances. He was placed on the injured list on April 29 with a dislocated finger, briefly halting his momentum before he returned to Triple-A on May 20.
Looking ahead, McCoy’s 2025 outlook depends on staying healthy and continuing to provide the kind of defensive flexibility and base-running value that have defined his career. With the Padres regularly cycling infielders through the active roster, his ability to play shortstop, second base, and third base keeps him in position for additional major league opportunities during the 2025 season.