Labanc got his first taste of hockey at the Staten Island Skating Pavilion. As a youth, he played in the 2008
Quebec International Pee-Wee Hockey Tournament with the New Jersey Devils
minor ice hockey team. He later played amateur junior hockey in New Jersey through the Youth Hockey League, to the
Atlantic Junior Hockey League with the
New Jersey Rockets before he was selected to play in the
U.S. National Development Team Program through the
United States Hockey League. At the conclusion of his tenure in the U.S. Development Program, Labanc opted to forgo collegiate hockey and pursue a major junior career in the
Ontario Hockey League with the
Barrie Colts. He was originally drafted by the Colts in the 2011 Priority Selection in the sixth round, 103rd overall. He scored 35 points in 65 games as a rookie in the
2013–14 season with the Colts and was drafted by the
San Jose Sharks in the
2014 NHL entry draft, 171st overall. In the following two season with the Colts, Labanc broke out offensively with back-to-back 100-point seasons. In the
2015–16 season, his overage year, Labanc led the Colts and the League with 88 assists and 127 points. He was awarded the
Leo Lalonde Memorial Trophy and the
Jim Mahon Memorial Trophy as the top scoring right winger in the OHL. He completed his junior career with the Colts amongst franchise leader's in points-per-game games and finished fourth overall in scoring with 269 points in just 198 games. On March 9, 2016, Labanc was signed by the
San Jose Sharks to a three-year entry-level contract. He was assigned to join the team's AHL affiliate, the
San Jose Barracuda, for their post-season run, making his professional debut in a solitary game. After attending the Sharks' training camp in preparation for his first full professional season in
2016–17, Labanc was assigned to begin the year with the Barracuda. After scoring 10 points in just 6 games in the AHL, Labanc received his first recall to the San Jose Sharks on November 7, 2016. He made his debut, featuring on a scoring line, alongside
Logan Couture and
Joonas Donskoi, in a 3–0 victory over the
Washington Capitals on November 8. In his fifth game, Labanc scored his first NHL goal, assisted by
Joe Thornton, against
Jake Allen, in a 3–2 defeat to the
St. Louis Blues on November 17, 2016. On February 9, 2019, Labanc scored his first NHL hat-trick in a 5–2 victory against the
Edmonton Oilers. He finished the
2018–19 season with 17 goals and 56 points in 82 games. In Game 7 of the Sharks' first-round series against the
Vegas Golden Knights, Labanc contributed on all four Sharks' third period goals (one goal and three assists). The team eventually won the game in overtime, advancing to the second round. The feat made Labanc the first player in NHL postseason history to record four points in a single period of a Game 7. For the
2019 postseason, the Sharks were eliminated in six games by the eventual champions, the
St. Louis Blues, during the
Western Conference Finals. Overall, Labanc recorded four goals and five assists in 20 games. On July 8, 2019, the Sharks re-signed Labanc to a one-year, $1 million contract extension. On October 10, 2020, the Sharks re-signed Labanc to a four-year, $18.9 million contract extension. As an unrestricted free agent during the 2024 offseason, Labanc went un-signed over the summer before accepting an invitation to attend the
New Jersey Devils training camp for the on a
professional tryout on September 16, 2024. Following a preseason with New Jersey in which he scored six goals in four games, Labanc signed a one-year contract with the
Columbus Blue Jackets on October 5, 2024. Ahead of the , Labanc joined the
Carolina Hurricanes on a professional tryout, but was cut near the end of the preseason. On October 8, 2025, Labanc was signed by the Shanghai Dragons to play for the remainder of the
2025–26 KHL season. ==Personal life==