Connor Seabold Bio
Connor Seabold (born January 24, 1996) is an American professional baseball pitcher and a free agent. Listed at 6 feet 2 inches and 190 pounds, he throws and bats right-handed and has played in Major League Baseball for the Boston Red Sox, Colorado Rockies, Tampa Bay Rays and Atlanta Braves, and in the KBO League for the Samsung Lions.
Early Life and Background
Connor Seabold grew up in Newport Beach, California, and attended Newport Harbor High School, where he developed as a pitcher through his junior and senior seasons. As a junior in 2013 he posted a 1.97 earned run average, and as a senior in 2014 he recorded a 3.80 ERA while striking out 57 batters in 46 innings.
Seabold was selected by the Baltimore Orioles in the 19th round of the 2014 MLB draft but declined to sign and enrolled at California State University, Fullerton to continue his development. At Cal State Fullerton he progressed rapidly, moving into the Friday night starter role as a sophomore and earning All-Big West honors as a junior.
Path to Baseball
At Cal State Fullerton, Seabold showed a strong strikeout profile and low walk rates that made him an attractive draft prospect. He struck out 76 batters in 69 innings as a freshman, then set a higher benchmark with 96 strikeouts and a 2.48 ERA as a sophomore while earning All-Big West Conference second-team recognition.
After his junior season in 2017, Seabold was selected in the third round, 83rd overall, by the Philadelphia Phillies and signed for a reported $525,000. He began his professional ladder in Low–A and moved steadily through the Phillies’ minor league system while appearing in offseason developmental leagues.
Connor Seabold Career
Early Career (2017–2019)
Seabold made his professional debut in 2017 with the Williamsport Crosscutters of Low–A, where he allowed no earned runs across 10 innings, posting a 0.90 ERA in his first pro appearances. In 2018 he opened with the Clearwater Threshers of High–A and earned a promotion to the Reading Fightin Phils of Double–A, combining for 23 starts, 132 strikeouts and a 4.28 ERA across the two levels.
He returned to Reading to begin 2019 and made additional appearances with Clearwater before missing time due to an oblique injury. After the 2019 regular season Seabold made four strong starts in the Arizona Fall League, striking out 22 in 17 innings, and was selected to the United States national baseball team roster for the 2019 WBSC Premier12 tournament.
Philadelphia Phillies Organization Breakthrough (2017–2020)
During his tenure in the Philadelphia system, Seabold developed a consistent strikeout ability and earned attention as a third‑round pick who could provide depth as a starting pitcher. His control and strikeout-to-walk ratios in the minors were a notable part of his profile, and his Arizona Fall League performance reinforced his prospect standing heading into the 2020 offseason.
Seabold remained in the Phillies organization through the 2020 season before being involved in a trade that moved him to a new major league organization, creating the next step in his professional career.
Boston Red Sox Breakthrough (2020–2022)
On August 21, 2020, Connor Seabold was traded to the Boston Red Sox as part of a multi-player deal. He was added to Boston’s 40-man roster in November 2020 and began the 2021 season on the injured list with elbow soreness before returning to Triple-A Worcester in July.
Seabold made his Major League Baseball debut on September 11, 2021, starting against the Chicago White Sox at Guaranteed Rate Field and allowing two runs on three hits across three innings. In 2022 he split time between Worcester and Boston, making several starts for the Red Sox; across five major league starts in 2022 he recorded an 0–4 mark with an 11.29 ERA while continuing to alternate between the majors and Triple-A for depth and development.
Colorado Rockies Tenure (2023)
Seabold was traded to the Colorado Rockies on January 17, 2023. He appeared in 20 games for the Rockies and struggled with a 7.18 ERA, leading to a move to the bullpen in July 2023. The Rockies released him in December 2023, opening the door for an opportunity overseas.
Samsung Lions Era (2024)
On December 22, 2023, Connor Seabold signed a one-year contract with the Samsung Lions of the KBO League. In 2024 he established himself as a reliable starter in the Korean league, making 28 starts and posting an 11–6 record with a 3.43 ERA and 158 strikeouts across 160 innings.
Seabold’s KBO season showcased his ability to handle a starter’s workload and provided a substantive professional reset, returning him to free-agent status following the 2024 season with renewed durability and performance metrics that attracted MLB organizations the following year.
Tampa Bay Rays Era (2025)
Connor Seabold signed a minor league contract with the Tampa Bay Rays on February 7, 2025, and began the season with Triple-A Durham. The Rays selected his contract on May 9, 2025, and he made three appearances for the big league club, recording a 1.35 ERA with five strikeouts in 6 2/3 innings before being designated for assignment in August.
The brief major league stint with Tampa Bay offered Seabold limited appearances but positive run prevention in that small sample, and it led to a waiver claim by another National League club later in the season.
Atlanta Braves Era (2025)
On August 10, 2025, Seabold was claimed off waivers by the Atlanta Braves. He made four appearances for Atlanta, posting a 9.82 ERA and five strikeouts in 3 2/3 innings. He was designated for assignment on September 22, cleared waivers and was outrighted to Triple‑A Gwinnett before electing free agency in November.
His time with Atlanta provided bullpen opportunities late in the season but did not yield sustained success at the major league level, and Seabold entered free agency seeking new organizational fits.
Driving Style and Strengths
Connor Seabold profiles as a right-handed starter with a workmanlike approach, demonstrating the ability to miss bats as reflected in his strikeout totals in both the U.S. minors and the KBO. His 2024 season in Korea underlined his durability across a starter’s workload and his command that limited walks in many outings.
Notable Events and Milestones
Key milestones in Seabold’s career include his third-round selection in the 2017 MLB draft, his major league debut with the Boston Red Sox on September 11, 2021, and a productive 2024 season with the Samsung Lions in the KBO League that produced an 11–6 record and 158 strikeouts.
Connor Seabold Career Wins
Across domestic and international professional play, verified records show Seabold compiled an 11–6 record with Samsung in the KBO during the 2024 season and holds a 2–11 win–loss line in Major League Baseball through the verified reporting periods provided. His KBO performance remains the strongest single-season win total on record.
KBO League Highlights
Seabold’s 2024 season with the Samsung Lions represented a clear highlight: 28 starts, an 11–6 record, a 3.43 ERA and 158 strikeouts across 160 innings. That campaign marked his most sustained success as a professional starter and contributed materially to his free-agent market following the season.
Other Wins & Perfromances
In the minor leagues, Seabold compiled notable strikeout totals and several strong starts that facilitated promotions through the Philadelphia Phillies system, including a dominant Arizona Fall League showing after the 2019 season. His minor-league track record underpinned multiple opportunities at the major-league level and abroad.
Connor Seabold Family
Family Background and Racing Lineage
Connor Seabold has two younger brothers, Cade and Carson. Public reporting notes that his mother died in August 2015 following a battle with cancer.
Personal Life
Seabold has kept his personal life private beyond immediate family details that are part of the public record. He has spent much of his adult life focused on professional baseball development across collegiate, minor league, major league and international stints.
2025 Season Performance
The 2025 season was a year of transition for Seabold. He began the year in the Tampa Bay Rays organization, earned a major league callup and produced a small-sample 1.35 ERA across three appearances before roster moves led to his designation for assignment in August.
Shortly thereafter he was claimed by the Atlanta Braves and provided late-season bullpen innings but struggled to find consistency. By season’s end Seabold elected free agency, entering the offseason as a right-handed pitcher with recent starting workload evidence from his 2024 KBO season and several short major-league appearances in 2025.