Two of the top five goal-scorers in the first round were rookies, with Pittsburgh Penguins forward Jake Guentzel leading all skaters with five goals and Maple Leafs forward Auston Matthews sharing second place with four.
* Guentzel became the second NHL rookie with a hat trick in the postseason that included an overtime goal, achieving the feat in Game 3 against the Columbus Blue Jackets. Guentzel, who scored two game-winning goals, also became the first player to score five goals in his first four career postseason games since Maurice Richard in 1944 with the Canadiens.
* Matthews, 19, scored in Games 3-6 to become the second teenager in the NHL to score in four consecutive playoff games (4-1-5), joining Wendel Clark, who also achieved the feat at age 19 in 1986 (4-0-4 in 4 GP).
* Four rookies, forwards Kasperi Kapanen of the Maple Leafs, Guentzel, Kevin Fiala of the Nashville Predators and Sean Kuraly of the Bruins, scored an overtime goal, equaling the total from the 2016 Stanley Cup Playoffs. Only one year in Stanley Cup Playoffs history has featured more rookies with at least one overtime goal. In 1968, Jacques Lemaire (two), Milan Marcetta, Larry Keenan, Gary Sabourin and Don Blackburn all scored in extra time.
* Edmonton Oilers forward Anton Slepyshev scored his first NHL playoff goal in Game 6 to become the fifth rookie with a winning goal in the first round and the third Oilers rookie to score a series-clinching goal, first since 1992.