College in a December 2022 game against the
University of Wisconsin at the
Kohl Center Hughes committed to play
college ice hockey for the
University of Michigan during the
2021–22 season. Hughes led the league in goals scored with 13 in conference play and recorded nine assists for 22 points, the second-most points in the league play behind
Matty Beniers. He led the nation's defensemen in scoring with 17 goals and 19 assists for 36 points in 37 games and is a +25. He set several Michigan program records this season. His 17 goals surpassed
Dean Turner's freshman defenseman record of 13 set in 1975–76, and he passed
Jack Johnson's 32 points for the most points by a Michigan freshman defenseman. In March, Hughes recorded one goal and six assists in seven games and was subsequently named the Hockey Commissioner's Association Rookie of the Month. Following an outstanding season, he was named to the All-
Big Ten Freshman Team, the
All-Big Ten Second Team and was named Co-
Big Ten Freshman of the Year. During the
2022–23 season he led the league's defensemen in scoring with seven goals and 21 assists for 28 points, averaging 1.27 points per game. In 39 total games, he recorded 10 goals and 38 assists, ranking second in the nation in points per game by a defenseman. Following an outstanding season he was named a finalist for the
Big Ten Player of the Year and
Big Ten Defensive Player of the Year and was named to the
All-Big Ten First Team. He was also named an AHCA
West First Team All-American. He was considered a top prospect for the
2021 NHL entry draft. On July 23, 2021, Hughes was drafted fourth overall by the
New Jersey Devils in the 2021 draft.
Professional On April 8, 2023, Hughes was signed to a three-year, entry-level contract by the New Jersey Devils. Hughes made his NHL debut on April 11, in a 6–2 win against the
Buffalo Sabres. In the game, he blocked two shots, made one hit and one takeaway and skated a total 11:15 of ice time. In the next game, Hughes recorded his first NHL goal, which was a game-winning goal, and an assist in a 5–4 overtime win against the
Washington Capitals. Hughes made his playoffs debut on May 7, at home against the
Carolina Hurricanes, assisting on two goals in an 8–4, Game 3 win for the Devils. During the
2023–24 season, in his rookie season, Hughes set a franchise record for points by a rookie defenseman, recording nine goals and 47 points and playing in each of the Devils' 82 games. On April 3, 2024, against the
New York Rangers, he recorded 32:49 minutes on ice and surpassed 24 minutes on 13 separate occasions. His 47 points were tied with
Brock Faber for second-most points among rookies. Hughes led rookie defensemen in power-play points (25), power-play goals (four), goals (nine), and takeaways (42) and was second in shots (135) and ice time per game (21:28). Following the season he was named a finalist for the
Calder Memorial Trophy and was voted unanimously to the
All-Rookie Team. On October 1, 2025, before the start of the
2025–26 season, Hughes signed a seven-year, $63 million contract with the Devils as a pending
restricted free agent. Hughes was placed on long-term injured reserved in late January 2026 with an expected return after the
2026 Winter Olympics break, after being injured a few days prior during a game against the
Calgary Flames. He was removed from long-term injury reserve in late February, with
Colton White returning to the
American Hockey League's
Utica Comets. On April 9, after being eliminated from playoff contention, the Devils announced that Hughes would miss the remaining four games of the season to undergo a procedure and begin rehab. He finished the season with six goals and 35 points in 68 games. ==International play==