Mason Lohrei Bio
Mason Lohrei is an American professional ice hockey player who plays as a defenseman for the Boston Bruins of the National Hockey League (NHL). Born on January 17, 2001, in Baton Rouge, Louisiana, he is the first player in NHL history to have been born in the state of Louisiana. Before turning professional, Lohrei played college ice hockey for the Ohio State University, where he developed into a promising two-way defenseman. Known for his size, mobility, and offensive instincts from the blue line, Lohrei has quickly become a young player to watch for the Boston Bruins organization.
Early Life and Background
Mason Lohrei was born in Baton Rouge, Louisiana, on January 17, 2001, while his father, David, was serving as head coach of the East Coast Hockey League’s Baton Rouge Kingfish. Growing up in a hockey family, Lohrei was exposed to the sport at a very young age. Because of his father’s coaching career, the family relocated several times during his childhood, first moving to Pennsylvania and later to Wisconsin, where he spent most of his formative years.
Lohrei attended Middleton High School in Middleton, Wisconsin, before transferring after his freshman year to Culver Academies in Culver, Indiana. It was during his time at Culver that a major turning point in his hockey career occurred. As a sophomore, he made the strategic decision to switch from playing forward to defense in order to earn more ice time. The position change proved to be defining, as it allowed his physical tools and hockey sense to shine in a new role.
Path to Hockey
Lohrei’s development through the U.S. development system and prep school hockey laid the foundation for his collegiate career. His performances at Culver Academies attracted attention from NCAA programs, and he ultimately committed to playing college ice hockey for the Ohio State University, joining the Buckeyes for the 2021–22 season. The Big Ten Conference provided him with a strong competitive platform to refine his defensive game and offensive skill set.
During his freshman year at Ohio State, Lohrei led the entire Buckeyes team with 25 assists, an impressive feat for a young defenseman adjusting to the college level. His strong play earned him a selection to the All-Big Ten Freshman Team, signaling that he was one of the top first-year players in the conference. This early success cemented his reputation as a high-upside prospect heading into his next collegiate season.
Mason Lohrei Career
Early Career (2021–2023)
Lohrei returned to the Ohio State Buckeyes for the 2022–23 season, where he continued to develop his game. He finished second on the team in assists and third in total points, recording 28 assists and 32 points overall. Ohio State qualified for the NCAA tournament that season, advancing past the first round before being eliminated in the second round by the eventual national champion Quinnipiac Bobcats.
Following the conclusion of his sophomore collegiate season, Lohrei ended his time at Ohio State to begin his professional career. On March 31, 2023, the Providence Bruins, Boston’s American Hockey League affiliate, announced that they had signed him to an amateur tryout contract for the remainder of the 2022–23 season. Lohrei appeared in five regular season games with Providence, registering one assist, and also played in three AHL playoff games before the team was eliminated by the Hartford Wolf Pack.
Boston Bruins Breakthrough (2023–2024)
Lohrei began the 2023–24 season with Providence in the AHL, but his path to the NHL came quickly. On November 2, 2023, injuries on the Boston blue line led to his recall, and he made his NHL debut against the Toronto Maple Leafs. In that same game, he recorded his first NHL point, an assist on a goal by Pavel Zacha, becoming the first NHL player in history to be born in the state of Louisiana. Just a few days later, on November 6, 2023, he scored his first NHL goal against the Dallas Stars.
After being sent back to Providence in late November 2023, Lohrei returned to Boston on December 7, 2023, and continued to log NHL games through the winter. On February 21, 2024, he recorded three assists in a single game against the Edmonton Oilers, showcasing his offensive ceiling. He was reassigned to the AHL on April 12, 2024, but returned to Boston for the playoffs, making his NHL playoff debut in Game 3 of the first round against the Toronto Maple Leafs. He picked up his first playoff point the following game with an assist on a goal by James van Riemsdyk, and later scored his first NHL playoff goal in Game 1 of the second round against the Florida Panthers.
Boston Bruins Era (2024–Present)
Entering the 2024–25 season, Lohrei aimed to build on his promising rookie year and was named to the Bruins’ opening night roster. Although his season opener was difficult, with the Bruins losing 6–4 to the Florida Panthers while he was on the ice for three goals against, he quickly found his rhythm. He produced a three-game point streak with a goal and three assists, and went on to record eight assists in December and two goals with five assists in January, demonstrating his ongoing offensive development.
Despite his offensive contributions, Lohrei often found himself on the ice for opposing goals, and he finished the 2024–25 season with a minus-43 rating, the lowest plus-minus in the NHL that year. The campaign was a difficult one for the Bruins as a whole, with major trades at the deadline and injuries to top defensemen Charlie McAvoy and Hampus Lindholm, which forced Lohrei into a much larger defensive role. In 77 games, he finished with five goals and 33 assists. On June 23, 2025, as an impending restricted free agent, Lohrei signed a two-year, $6.4 million contract extension with the Boston Bruins, securing his future with the organization.
Driving Style and Strengths
Lohrei is a tall, mobile defenseman listed at 6 feet 4 inches and around 209 pounds, giving him the size to win battles along the boards and in front of the net. He is recognized for his smooth skating, strong puck-moving ability, and offensive instincts from the blue line. His confidence in joining the rush and quarterbacking the power play has been a key element of his game. Defensively, his blend of reach and mobility allows him to break up plays and transition the puck quickly, though consistency in his own end remains a focus for his continued development.
Notable Events and Milestones
Lohrei’s NHL debut on November 2, 2023, stands as a historic moment, as he became the first NHL player ever born in the state of Louisiana. He also recorded his first NHL goal, first NHL playoff goal, and a memorable three-assist performance against the Edmonton Oilers in his rookie year. On the international stage, he represented the United States for the first time at the 2025 IIHF World Championship, appearing in five games with one goal and two assists as Team USA won its first gold medal at the event since 1933.
Mason Lohrei Career Wins
Mason Lohrei’s career has been highlighted by both team and individual achievements. While he has not yet captured a major individual NHL award, he earned All-Big Ten Freshman Team honors during his time at Ohio State. At the international level, he was part of the United States squad that won the gold medal at the 2025 IIHF World Championship, one of the most significant achievements of his career to date.
International Highlights
Lohrei was named to the United States team for the 2025 IIHF World Championship on April 24, 2025, after the Bruins’ season had ended. It marked his first appearance representing the U.S. in any international competition. He played in five games during the tournament, scoring one goal and two assists, and helped Team USA claim the gold medal, their first at the event since 1933. The performance further established him as a player with international upside.
Other Wins & Performances
During his amateur career, Lohrei was a key contributor for the Ohio State Buckeyes across two seasons, helping the program reach the NCAA tournament in 2022–23. His professional journey has been marked by steady progression from the AHL’s Providence Bruins to becoming a full-time NHL defenseman with Boston, highlighted by a multi-year contract extension in 2025.
Mason Lohrei Family
Family Background and Hockey Lineage
Hockey runs deep in the Lohrei family. Mason Lohrei was born in Baton Rouge because his father, David Lohrei, was head coach of the East Coast Hockey League’s Baton Rouge Kingfish at the time. David’s coaching career shaped the family’s path, taking them from Louisiana to Pennsylvania and then to Wisconsin during Mason’s childhood. Growing up in this hockey-focused environment gave Mason an early understanding of the game and a clear pathway into competitive play.
Personal Life
Mason Lohrei’s personal life has been kept largely out of the public eye, as he focuses on his rising professional hockey career. He is known to be active on social media, where fans can follow his journey with the Boston Bruins. As he continues to grow as a young defenseman in the NHL, his family and hockey roots remain an important part of his identity.
2025 Season Performance
The 2024–25 NHL season was a defining year for Mason Lohrei with the Boston Bruins. Named to the opening night roster, he was given a significant role on the blue line, particularly as injuries and trades thinned Boston’s defense corps. He posted 38 points with five goals and 33 assists across 77 games, but his minus-43 rating reflected the broader struggles of the Bruins team throughout the campaign. The trade deadline saw Boston move several veterans, including defenseman Brandon Carlo, which further elevated Lohrei’s responsibilities on the ice.
Following the conclusion of the NHL season, Lohrei was named to the United States roster for the 2025 IIHF World Championship on April 24, 2025. He appeared in five games, contributing one goal and two assists, and helped Team USA capture the gold medal, the program’s first world title since 1933. The international triumph was a major personal milestone and a bright note to build on after a challenging NHL regular season.
Looking ahead, Lohrei’s future with the Bruins was secured on June 23, 2025, when he signed a two-year, $6.4 million contract extension as a restricted free agent. The deal reflects the organization’s confidence in his long-term potential and gives him the opportunity to refine his defensive game while continuing to contribute offensively. With a stable contract and valuable NHL experience under his belt, Lohrei is positioned to play an even larger role for the Bruins in the seasons to come.