Connor Seabold Bio
Connor Seabold (born January 24, 1996) is an American professional baseball pitcher who is currently a member of the Kansas City Royals organization of Major League Baseball (MLB). A right-handed pitcher who also bats right-handed, Seabold has spent parts of seven major league seasons moving between starting and relief roles across multiple organizations. Standing 6 feet 2 inches tall and weighing 190 pounds, he has pitched in MLB for the Boston Red Sox, Colorado Rockies, Tampa Bay Rays, Atlanta Braves, Detroit Tigers, and Toronto Blue Jays, and spent one season in the Korea Baseball Organization (KBO) League with the Samsung Lions.
Drafted in 2017 by the Philadelphia Phillies out of California State University, Fullerton, Seabold reached the majors three years later and has since built a journeyman career marked by sharp minor league results and inconsistent major league output. His career has included a productive overseas stint, several waiver moves, and recurring trips between Triple-A and the major league roster.
Early Life and Background
Connor Seabold grew up in the Newport Beach area of Southern California, where he attended Newport Harbor High School. As a junior in 2013, he posted a 2–6 win–loss record with a 1.97 earned run average (ERA), and the following year he struck out 57 batters in 46 innings while pitching to a 3.80 ERA. His senior performance drew the attention of professional scouts, and the Baltimore Orioles selected him in the 19th round of the 2014 MLB draft. Seabold declined to sign with Baltimore, choosing instead to honor his college commitment and continue developing as a pitcher.
Off the field, Seabold has two younger brothers, Cade and Carson. Their mother died in August 2015 at age 45 following a battle with cancer, an event that occurred during his early college years. Family support has remained part of his story as he has navigated a career that frequently takes him across organizations and, for one season, overseas.
Path to Professional Baseball
Seabold enrolled at California State University, Fullerton, where he played college baseball for the Cal State Fullerton Titans. As a freshman in 2015, he appeared in 22 games with 11 starts, going 5–4 with a 3.26 ERA in 69 innings while striking out 76 batters against only 12 walks. The following summer he pitched in the Cape Cod Baseball League for the Yarmouth–Dennis Red Sox and helped the club win the league championship.
In 2016, Seabold became the Titans’ Friday night starter about a month into the season and earned All-Big West Conference second team recognition after going 7–6 with a 2.48 ERA across 16 games. As a junior in 2017, he went 11–5 with a 2.96 ERA and was named to the All-Big West Conference first team, cementing his status as one of the top college arms available in that year’s draft.
Connor Seabold Career
Early Career (2017–2019)
The Philadelphia Phillies selected Connor Seabold in the third round, 83rd overall, of the 2017 MLB draft, and he signed for $525,000. He made his professional debut that summer with the Williamsport Crosscutters of the Low-A New York–Penn League and posted a 0.90 ERA over 10 innings. The following season he split time between the Clearwater Threshers of the High-A Florida State League and the Reading Fightin Phils of the Double-A Eastern League, finishing 5–8 with a 4.28 ERA across 23 starts while striking out 132 batters in 130 and one-third innings.
In 2019, Seabold returned to Reading and Clearwater, going 3–1 with a 2.25 ERA at Reading and posting a 1.00 ERA in two appearances with Clearwater before an oblique injury cut into his workload. He finished the year in the Arizona Fall League with the Scottsdale Scorpions, going 1–0 with a 1.06 ERA and 22 strikeouts in 17 innings, and was selected for the United States national baseball team for the 2019 WBSC Premier12 tournament.
Boston Red Sox Era (2020–2022)
On August 21, 2020, the Phillies traded Seabold and Nick Pivetta to the Boston Red Sox in exchange for Brandon Workman, Heath Hembree, and cash, and he was added to Boston’s 40-man roster that November. He began 2021 on the injured list with elbow soreness, returned in July, and was assigned to the Triple-A Worcester Red Sox, where he went 4–3 with a 3.50 ERA and 52 strikeouts in 54 innings. On September 11, 2021, Seabold was added to Boston’s active roster and made his major league debut that night against the Chicago White Sox at Guaranteed Rate Field, allowing two runs on three hits in three innings before being optioned back to Worcester the next day.
In 2022, Seabold bounced between Worcester and Boston, making five major league starts and going 0–4 with an 11.29 ERA while striking out 19 batters in 18 and one-third innings. A right forearm extensor strain landed him on the injured list in mid-July, and he was designated for assignment on January 12, 2023, after Boston signed Corey Kluber.
Colorado Rockies (2023)
On January 17, 2023, Seabold was traded to the Colorado Rockies in exchange for a player to be named later or cash. He struggled to a 7.18 ERA across 20 appearances and was moved to the bullpen on July 20 before being released on December 6.
Samsung Lions (2024)
On December 22, 2023, Seabold signed a one-year, $900,000 contract with the Samsung Lions of the KBO League. In 28 starts during the 2024 season, he posted an 11–6 record with a 3.43 ERA and 158 strikeouts across 160 innings, becoming a free agent after the campaign. The overseas season marked the most productive stretch of his career to that point.
Tampa Bay Rays and Atlanta Braves (2025)
On February 7, 2025, Seabold signed a minor league contract with the Tampa Bay Rays and was assigned to the Triple-A Durham Bulls. The Rays selected his contract on May 9, and he posted a 1.35 ERA with five strikeouts in six and two-thirds innings across three appearances before being designated for assignment on August 8. On August 10, the Atlanta Braves claimed him off waivers, and he appeared in four games for Atlanta, struggling to a 9.82 ERA before being designated for assignment on September 22. He cleared waivers, was sent outright to the Triple-A Gwinnett Stripers on September 24, and elected free agency on November 2.
Detroit Tigers, Toronto Blue Jays, and Kansas City Royals (2026)
On January 21, 2026, Seabold signed a minor league contract with the Toronto Blue Jays but was released prior to Opening Day on March 21. Two days later he signed a split contract with the Detroit Tigers, made the active roster out of spring training, and posted a 1–0 record with a 3.45 ERA and 14 strikeouts in 15 and two-thirds innings across 11 appearances before landing on the 15-day injured list with an ankle injury on April 26. Detroit designated him for assignment on May 24, and on May 27 the Toronto Blue Jays acquired him in exchange for Juanmi Vasquez.
With Toronto, Seabold struggled to an 8.10 ERA across five appearances before being designated for assignment on June 10. On June 15, 2026, he was traded to the Kansas City Royals in exchange for Denis Samudio and cash considerations, joining his eighth major league organization.
Notable Events and Milestones
Seabold’s most significant milestones include his major league debut with the Boston Red Sox on September 11, 2021, against the Chicago White Sox, and his productive 2024 KBO campaign with the Samsung Lions, where he won 11 games and struck out 158 batters in 160 innings. He has now appeared in the major leagues for seven different franchises.
Connor Seabold Career Wins
Connor Seabold has recorded the majority of his professional victories outside the major leagues, with his most concentrated success coming during his 2024 season in the KBO League with the Samsung Lions.
KBO League Highlights
In his only season in Korea, Seabold went 11–6 with a 3.43 ERA and 158 strikeouts across 28 starts and 160 innings for the Samsung Lions, anchoring their rotation and ranking among the league’s top strikeout pitchers. He became a free agent after the season.
Major League Performances
At the major league level, Seabold has recorded limited regular-season decisions, including an 0–4 mark in five starts with the Boston Red Sox in 2022, an 11–6 record with the Samsung Lions in 2024, a 1–0 mark with the Detroit Tigers in 2026, and ongoing appearances with the Kansas City Royals in 2026. Through that window he carries a 2–11 win–loss record in MLB with a 7.18 ERA and 113 strikeouts.
Connor Seabold Family
Family Background and Personal Life
Connor Seabold has two younger brothers, Cade and Carson, who have been part of his support system throughout his baseball career. Their mother died in August 2015 at age 45 following a battle with cancer, an event that occurred while Seabold was a college pitcher at Cal State Fullerton. He keeps his personal life largely private and has not publicly shared details about a spouse or children.
2025 Season Performance
The 2025 season was a year of movement for Connor Seabold. After signing a minor league deal with the Tampa Bay Rays in February, he opened the year at Triple-A Durham before earning a major league call-up in May and posting a 1.35 ERA in three appearances for Tampa Bay. He was designated for assignment in early August and quickly claimed by the Atlanta Braves, where results were less favorable, leading to another designation in late September and an outright assignment to Triple-A Gwinnett.
Seabold elected free agency in early November 2025, ending his second straight year in which he wore multiple major league uniforms. Despite uneven big league results, he remained healthy enough to log innings at both the Triple-A and major league levels.
Looking ahead, Seabold carried his free agency into the 2026 calendar, where he has since signed with the Detroit Tigers, been traded to the Toronto Blue Jays, and landed with the Kansas City Royals. His 2025 experience underscored both the volatility of his major league opportunities and the durability that has kept him on major league rosters across multiple organizations.
