Michael Kelly Bio
Michael Joseph Kelly, born on September 6, 1992, is an American professional baseball pitcher who currently plays for the Oakland Athletics of Major League Baseball (MLB). A right-handed pitcher, Kelly has competed at the major league level with three franchises, including the Philadelphia Phillies and Cleveland Guardians before joining Oakland. He wears jersey number 49 for the Athletics and has built his career as a durable relief option who has worked through both affiliated and independent baseball. Kelly’s professional journey has spanned more than a decade, from high school prospect to established MLB reliever.
Early Life and Background
Michael Joseph Kelly grew up in Boca Raton, Florida, where he attended West Boca Raton Community High School. He played for the school’s baseball team as a pitcher, developing the foundation for a professional career. During his time at West Boca Raton Community High School, Kelly showcased the arm strength and pitching mechanics that would later attract the attention of Major League scouts. His development as a high school pitcher in Florida’s competitive baseball environment helped shape his approach to the game.
Path to Baseball
Kelly’s path to professional baseball accelerated when the San Diego Padres selected him in the first round of the 2011 MLB draft, choosing him with the 48th overall pick. The Padres’ investment reflected the potential they saw in the young Florida pitcher. Kelly made his professional debut in 2012, splitting his first season between the rookie-level Arizona League Padres and the Single-A Fort Wayne TinCaps. Over the following seasons, he climbed steadily through the Padres’ minor league system, gaining valuable experience at each level while refining his craft on the mound.
Michael Kelly Career
Early Career (2012–2017)
Kelly spent his first six seasons in the San Diego Padres organization without reaching the major leagues. He pitched across multiple affiliates, including the Fort Wayne TinCaps, Eugene Emeralds, Lake Elsinore Storm, San Antonio Missions, and El Paso Chihuahuas. In 2016, Kelly compiled a 9–8 record and 4.34 ERA with 115 strikeouts across 128 and two-thirds innings pitched. The following season, he recorded a 10–4 record and 4.19 ERA with 128 strikeouts in 126 and two-thirds innings, earning him consideration as a prospect on the rise. Kelly elected free agency on November 6, 2017, concluding his tenure in the Padres’ system.
Independent and Minor League Years (2018–2021)
On December 14, 2017, Kelly signed a major league contract with the Baltimore Orioles, but he was designated for assignment on March 29, 2018, and later assigned outright to the Double-A Bowie Baysox. He split the 2018 campaign between Bowie and the Triple-A Norfolk Tides, accumulating a 1–6 record and 8.42 ERA. Seeking new opportunities, Kelly joined the Southern Maryland Blue Crabs of the Atlantic League of Professional Baseball, an independent league, on April 25, 2019. He made 20 appearances for the Blue Crabs and posted a 3–8 record with 83 strikeouts across 89 and one-third innings. On May 11, 2021, Kelly signed a minor league contract with the Houston Astros organization, splitting the year between the Double-A Corpus Christi Hooks and Triple-A Sugar Land Skeeters with a combined 5–4 record and 2.70 ERA.
Philadelphia Phillies Era (2022)
Kelly signed a minor league contract with the Philadelphia Phillies on November 28, 2021, and began the 2022 season with the Triple-A Lehigh Valley IronPigs. On June 13, 2022, he was selected to the 40-man roster and promoted to the major leagues for the first time. Kelly made four appearances for the Phillies, recording a 2.25 ERA with four strikeouts across four innings pitched. On July 14, he was removed from the roster and sent outright to Triple-A Lehigh. Kelly elected free agency on October 14, 2022, concluding his first MLB chapter.
Cleveland Guardians Era (2023)
On January 4, 2023, Kelly signed a minor league contract with the Cleveland Guardians, which included an invitation to major league spring training. He began the season with the Triple-A Columbus Clippers, where he recorded a 1.61 ERA with 36 strikeouts and 2 saves in 22 and one-third innings across 18 appearances. On June 3, 2023, Kelly was selected to the major league roster to fill the spot vacated by Hunter Gaddis. In 14 games for Cleveland, he compiled a 3.78 ERA with 16 strikeouts across 16 and two-thirds innings. The Guardians designated Kelly for assignment on November 14, 2023.
Oakland Athletics Era (2024–Present)
On November 17, 2023, the Oakland Athletics claimed Kelly off waivers, marking the beginning of his current chapter. In 28 games during the 2024 season, he recorded a 2.59 ERA with 22 strikeouts across 31 and one-third innings pitched, establishing himself as a reliable bullpen arm. On June 4, 2024, MLB suspended Kelly for one year for violating the league’s gambling policies, sidelining him for an extended period. On June 5, 2025, Kelly was activated from the restricted list and returned to the Athletics’ roster to resume his career.
Notable Events and Milestones
Kelly’s career has featured several defining moments, including his first-round selection by the Padres in the 2011 MLB draft and his major league debut with the Phillies in June 2022. He has represented three MLB franchises and has competed at every level of professional baseball, from rookie ball through the majors. His return to active status in June 2025 marked another milestone in a career defined by perseverance through the minor leagues, independent ball, and multiple organizations.
Michael Kelly Career Wins
Michael Kelly’s professional career has been built primarily as a relief pitcher, with verified statistical performances across the minor leagues, independent baseball, and Major League Baseball. While detailed win totals vary across seasons and levels, his MLB record through early contributions shows steady contributions out of the bullpen.
MLB Highlights
In the major leagues, Kelly has appeared with the Philadelphia Phillies (2022), Cleveland Guardians (2023), and Oakland Athletics (2024–present). His most productive MLB season to date came with Oakland in 2024, when he posted a 2.59 ERA with 22 strikeouts across 31 and one-third innings in 28 appearances. With Cleveland in 2023, he recorded a 3.78 ERA in 14 games, while his brief Phillies stint in 2022 produced a 2.25 ERA in four outings.
Other Performances
Throughout the minor leagues and independent ranks, Kelly has accumulated consistent results across multiple affiliates and teams. His 2017 season with Double-A San Antonio and Triple-A El Paso produced a 10–4 record and 4.19 ERA, while his 2016 campaign yielded 115 strikeouts across 128 and two-thirds innings. In the Atlantic League with the Southern Maryland Blue Crabs in 2019, he logged 83 strikeouts in 89 and one-third innings across 20 appearances.
Michael Kelly Family
Personal Life
Michael Joseph Kelly maintains a private personal life away from baseball. He was born on September 6, 1992, and grew up in Boca Raton, Florida. Kelly is known by his full name Michael Joseph Kelly and continues to play professional baseball at the major league level.
2025 Season Performance
Michael Kelly’s 2025 season began with his activation from the restricted list on June 5, 2025, following a one-year suspension for violating MLB’s gambling policies. His return to the Oakland Athletics provided the bullpen with a veteran arm familiar with the organization. Kelly’s role with the Athletics centers on providing reliable relief innings and contributing to a club building toward future competitiveness.
Throughout the 2025 campaign, Kelly has aimed to reestablish his form after the long layoff and resume producing quality outings out of the bullpen. His prior success with Oakland in 2024, including a 2.59 ERA across 28 appearances, offers a foundation for his continued contributions. As the season progresses, Kelly’s experience and durability position him as a steady option for the Athletics’ pitching staff.