• Won 2023 Stanley Cup as a member of the Vegas Golden Knights
• Drafted second overall by the Buffalo Sabres in the 2015 NHL Entry Draft
• Represented Team USA at three (2019, 2017, 2015) IIHF Men's World Championships, winning bronze in 2015
• A member of Team USA at 2015 and 2014 IIHF World Junior Championship, as well as the 2014 and 2013 IIHF Under-18 Men's World Championship
• Made Team USA debut at the 2012 Winter Youth Olympic Games

2019 IIHF Men's World Championship - Bratislava/Kosice, Slovakia (Seventh Place)

• Tallied eight points (2G, 6A) 

2017 IIHF Men's World Championship - Cologne, Germany/Paris, France (Fifth Place)

• Collected five assists for five points in eight games

2015 IIHF Men's World Championship - Prague/Ostrava, Czechia (Bronze Medal)

• Posted seven points (2G, 5A) in 10 games

2015 IIHF World Junior Championship - Montreal/Toronto, Canada (Fifth Place)

2014 IIHF World Junior Championship - Malmo, Sweden (Fifth Place)

• Tallied a team-high five goals in seven games, adding five assists

2014 IIHF Under-18 Men's World Championship - Lappeenranta/Imatra, Finland (Gold Medal)

2013 IIHF Under-18 Men's World Championship - Sochi, Russia (Silver Medal)

2012 Winter Youth Olympic Games - Innsbruck, Austria (Fourth Place)

• Led team with six points (2G, 4A) in six games

2023-24 - Vegas Golden Knights (NHL)

• Recorded 68 points (31G, 37A) in 63 games

2022-23 - Vegas Golden Knights (NHL)

• Tallied 66 points (27G, 39A) in 67 regular season games, adding 26 post season points (6G, 20A) as the Golden Knights won the Stanley Cup

2021-22 - Vegas Golden Knights (NHL)

• Posted 25 points (14G, 11A) in 34 games

2020-21 - Vegas Golden Knights (NHL)

• Recorded 25 points (14G, 11A) in first season with Vegas

2019-20 - Buffalo Sabres (NHL)

• Recorded 18 points (2G, 16A) in 16 games

2018-19 - Buffalo Sabres (NHL)

• Tallied a career-high in goals (28), assists (54) and points (82) while serving as captain for Buffalo

2017-18 - Buffalo Sabres (NHL)

• Collected 25 goals and 39 assists for 64 points in 67 games with Buffalo

2016-17 - Buffalo Sabres (NHL)

• Tallied 57 points (24-33) in 61 games for Buffalo

2015-16 - Buffalo Sabres (NHL)

• Notched 24 goals and 32 assists in 81 games during his rookie season for the Sabres
• Finished 4th in the Calder Trophy voting for NHL Rookie of the Year

Skated for one season at Boston University.

2014-15 (Freshman)

• Skated in 40 games for Boston University and tallied 71 points (26-45) to lead the nation

• Hobey Baker Award winner, First Team All-American

• Hockey East Player of the Year and Rookie of the Year, Hockey East First Team All-Star

• Hockey East Tournament MVP, Hockey East All-Tournament Team 

Played two seasons (2012-14) with USA Hockey's National Team Development Program.

2013-14

• Played for the U.S. National Under-18 Team, part of USA Hockey’s National Team Development Program, which competed in the United States Hockey League and against Division I and Division III college opponents and international teams
  • Played 53 games, notching a team-high 38 goals and tied for the lead in points (87)

2012-13

• Appeared in 22 games for the U.S. National Under-18 Team
  • Notched 10 goals and added eight assists
  • Scored three power-play goals and three game-winning goals
• Skated in 36 games for the U.S. National Under-17 Team
  • Netted 19 goals and collected 15 assists
  • Second on the squad in goals (19), points (34) and power-play strikes (5)
  • Led the team in shorthanded goals (2)
• Member of the U.S. National Under-17 Team that captured first place at the Four Nations Tournament in Monthey, Switzerland
  • Skated in three games, contributing two assists

2011-12

• Appeared in 36 games for the Boston Junior Bruins of the Empire Junior Hockey League
  • Scored 39 goals and added 47 assists
  • Ranked fourth in the EmJHL in points (86)