College
Buium began his collegiate career for the Denver Pioneers during the 2023–24 season. He was the second-youngest player in NCAA Division I hockey during his freshman year. [3] He was named the National Collegiate Hockey Conference (NCHC) Player of the Month and the HCA National Co-Player of the Month for November 2023. He became the first freshman defenseman to ever win NCHC Player of the Month. [4] He led all NCHC players in points (14), points-per-game (1.75), assists (11) and plus/minus (+13) during the month. [5] With three assists in a game against Western Michigan on December 9, 2023, he extended his scoring streak to 12 games, surpassing Lane Hutson's record for the longest point streak by a freshman defenseman in the last 21 years. [6] He was named the NCHC Rookie of the Month for December 2023. During the month he recorded one goal and six assists in four games. His 1.75 points per game was tied for the most in the NCHC during the month, and his seven points led all league freshmen and defensemen in scoring in that time. [7] Buium led all NCHC freshmen and NCHC defensemen and ranked second behind Jackson Blake with 31 points in 24 conference games, the second-most points ever in NCHC play by a defenseman, trailing only Scott Perunovich's 32 points during the 2019–20 season. His 25 assists in conference play were also second among all skaters and first among defensemen. Following the season he was named to the All-NCHC First Team and All-NCHC Rookie Team. [8] He was also named NCHC Rookie of the Year and NCHC Offensive Defenseman of the Year. [9]
During the 2024–25 season, in his sophomore year, he led all defensemen in scoring with 13 goals and 35 assists in 41 games. On November 15, 2024, in a game against North Dakota, he scored his first career hat-trick. This was the 12th hat-trick by a Denver defenseman in program history and the first since Ryan Caldwell on February 14, 2004, against Minnesota State. [10] During conference play he led all defensemen in scoring with eight goals and 20 assists. Following the season he was named to the All-NCHC First Team and NCHC Offensive Defenseman of the Year for the second consecutive year. He was also named the NCHC Player of the Year and a Hobey Hat Trick finalist for the Hobey Baker Award. [11] [12]
United States 
