Seth Johnson Bio
Seth William Johnson (born September 19, 1998) is an American professional baseball pitcher for the Philadelphia Phillies of Major League Baseball (MLB). He made his MLB debut in September 2024 and earned his first career win in July 2025. The Tampa Bay Rays originally selected Johnson in the first round of the 2019 MLB Draft with the 40th overall pick. He has previously played in the minor leagues for the Tampa Bay Rays organization and the Baltimore Orioles before joining the Phillies in July 2024.
Early Life and Background
Seth William Johnson grew up in Concord, North Carolina, and attended Jay M. Robinson High School, where he played baseball. After graduating in 2016, he enrolled at Louisburg College, a community college in North Carolina. At Louisburg, he primarily played as a shortstop and hit a combined .254 with nine home runs across his two seasons there. During his time at Louisburg, he pitched only six total innings, showing early versatility on the mound.
After his sophomore year at Louisburg, Johnson transferred to Campbell University to continue his baseball career. At Campbell, he made the transition from primarily a hitter to focusing entirely on pitching. In his junior season in 2019, he appeared in 14 games with 11 starts, compiling a 3-3 record with a 4.61 earned run average. He struck out 81 batters over 66 and one-third innings, demonstrating his potential as a collegiate pitcher.
Path to Professional Baseball
Johnson’s strong junior season at Campbell University in 2019 positioned him well for the MLB Draft. The Tampa Bay Rays selected him with the 40th overall pick, recognizing his combination of velocity and raw stuff as a pitcher. He received a signing bonus of $1.72 million and quickly began his professional career in the Rays organization, making his debut with the Rookie-level Gulf Coast League Rays shortly after being drafted.
Seth Johnson Career
Early Career (2019–2021)
After signing with the Tampa Bay Rays following the 2019 MLB Draft, Johnson debuted professionally with the Rookie-level Gulf Coast League Rays. He pitched ten scoreless innings over five games before earning a promotion to the Princeton Rays of the Appalachian League in August. He finished his first professional season with Princeton, posting a 0-1 record and a 5.14 ERA over seven innings pitched. The 2020 minor league season was canceled due to the COVID-19 pandemic, which prevented Johnson from playing in any official games.
Johnson returned to action in 2021 with the Charleston RiverDogs of the Low-A East League. He emerged as one of the most dominant pitchers in the system, appearing in 23 games with 16 starts. He compiled a 6-6 record with a 2.88 ERA and 115 strikeouts over 93 and two-thirds innings. His strong performance established him as a promising young arm within the Rays organization.
Tampa Bay Rays Breakthrough (2022)
Johnson began the 2022 season with the Bowling Green Hot Rods of the High-A South Atlantic League. He performed well before suffering a significant setback in late May, when he was placed on the injured list with forearm inflammation. Further examination revealed a torn ulnar collateral ligament in his elbow, requiring Tommy John surgery that ended his season. Prior to the injury, Johnson had posted a 3.00 ERA with 41 strikeouts over 27 innings pitched.
Baltimore Orioles Era (2022–2024)
The Tampa Bay Rays traded Johnson to the Baltimore Orioles in August 2022 as part of a three-team trade involving the Houston Astros. The trade sent José Siri to Tampa Bay, Trey Mancini to Houston, and brought Johnson along with Chayce McDermott to Baltimore. The Orioles added Johnson to their 40-man roster in November 2022 to protect him from the Rule 5 Draft. He began the 2023 season with Triple-A Norfolk while continuing his recovery from Tommy John surgery, making rehabilitation appearances across multiple minor league levels.
Johnson started the 2024 season at Triple-A Norfolk but was assigned to Double-A Bowie instead. He compiled a 2.63 ERA over 18 starts with Bowie, though he went 0-6 with 35 walks and 61 strikeouts during that stretch.
Philadelphia Phillies Era (2024–Present)
The Philadelphia Phillies acquired Johnson from the Baltimore Orioles on July 30, 2024, in exchange for relief pitcher Gregory Soto. The Orioles also received pitcher Moisés Chace in the trade. Johnson was promoted to the major leagues for the first time on September 8, 2024, making his MLB debut with the Phillies. In his brief debut season, he appeared in three games and pitched two and one-third innings, allowing eight hits, three walks, and nine earned runs.
Johnson was optioned to Triple-A Lehigh Valley to begin the 2025 season. He was recalled to Philadelphia on June 1, 2025, after Taijuan Walker moved to the bullpen. On July 19, 2025, Johnson recorded his first career win, allowing one run over one inning of relief against the Los Angeles Angels. He finished the 2025 season with a 1-1 record and a 4.26 ERA across ten MLB appearances, striking out 17 batters in twelve and two-thirds innings. He also pitched in 39 games for Lehigh Valley, going 5-5 with a 4.75 ERA and 67 strikeouts over sixty and two-thirds innings.
Johnson was optioned to Triple-A Lehigh Valley to begin the 2026 season. He was recalled to the Phillies on April 18, 2026.
Driving Style and Strengths
Johnson made a notable transition from primarily a hitter during his college career at Louisburg College to focusing on pitching after transferring to Campbell University. At Campbell, he appeared in 14 games with 11 starts, compiling a 3-3 record with a 4.61 ERA and 81 strikeouts over 66 and one-third innings. He has continued developing his craft as a pitcher throughout his professional career with multiple organizations.
Notable Events and Milestones
Johnson’s career has been marked by significant milestones including his MLB debut with the Philadelphia Phillies on September 8, 2024, and his first career win on July 19, 2025, against the Los Angeles Angels. His standout minor league performance came in 2021 with Single-A Charleston, where he posted a 2.88 ERA with 115 strikeouts over 93 and two-thirds innings.
Seth Johnson Career Wins
Johnson has accumulated limited major league experience, with his first career win coming in 2025. Across his minor league career, he has recorded multiple victories at various levels, with his most productive stretch coming at Single-A Charleston in 2021.
Major League Baseball Highlights
Johnson made his major league debut with the Philadelphia Phillies in September 2024. He recorded his first career win on July 19, 2025, against the Los Angeles Angels, allowing one run over one inning of relief. Through April 20, 2026, he has appeared in multiple MLB games with a win-loss record and 21 strikeouts across 12 and two-thirds innings.
Minor League Baseball Highlights
Johnson’s most productive minor league season came in 2021 with the Charleston RiverDogs, where he posted a 6-6 record with a 2.88 ERA and 115 strikeouts over 93 and two-thirds innings. He has also accumulated wins at Double-A Bowie and Triple-A Norfolk levels while developing his skills in the Baltimore Orioles and Philadelphia Phillies organizations.
| Series | Wins | Top Tens | Poles |
|---|---|---|---|
| MLB (2024–2026) | 1 | — | — |
| Minor League (2021) | 6 | — | — |
Seth Johnson Family
Family Background and Racing Lineage
Detailed information about Johnson’s family background is not widely available in public sources.
Personal Life
Seth William Johnson was born on September 19, 1998. Further details regarding his personal life remain private.
2025 Season Performance
The 2025 season marked Johnson’s first real opportunity at the major league level with regular call-up potential. He began the year at Triple-A Lehigh Valley before receiving a promotion to Philadelphia in June when the team needed bullpen depth. Johnson responded with his first career win in July against the Angels, providing a memorable milestone in his young career.
His performance during the 2025 season demonstrated his ability to compete at the highest level while also revealing areas for continued development. The Phillies rotated him between the bullpen and Triple-A assignment throughout the summer, using him in flexible role. Johnson gained valuable experience facing major league hitters and building confidence in high-pressure situations.