Game 6 of the Penguins' series against the Philadelphia Flyers marked the first time that players from opposing teams each had five points in a Stanley Cup Playoff game, with Philadelphia's Sean Couturier (three goals, two assists) matching Guentzel (four goals, one assist) while playing with a torn MCL in his right knee.
Boston Bruins forward David Pastrnak also had 13 points (five goals, eight assists) in the opening round, including three goals and three assists in Game 2 of the Bruins' series against the Toronto Maple Leafs to match the NHL record for most points by a player through his team's first two games of a postseason (nine). Pastrnak, 21, became the youngest player in the NHL to have six points in a playoff game, besting a mark set by Edmonton's Wayne Gretzky at age 22 in Game 3 of the 1983 Division Finals.
The first round closed with a thrilling Game 7 between the Bruins and Maple Leafs that included five goals in the first period and four tying goals. It matched the Edmonton Oilers' 7-4 win against the Calgary Flames in the 1984 Smythe Division Final as the third-highest scoring Game 7 on record, behind only the Minnesota North Stars' 9-4 win against the Los Angeles Kings in the 1968 NHL Quarterfinals (13 goals) and the New York Rangers' 8-4 win against the New Jersey Devils in the 1992 Patrick Division Semifinal (12).
Boston also became the first team to overcome three deficits of at least one goal to win a Game 7 in regulation; five years ago, the Bruins became the first team in NHL history to overcome a three-goal, third-period hole to win in a Game 7 (also against the Maple Leafs).
Boston center Patrice Bergeron had three points in each of those games; on Wednesday, he became the 11th player in NHL history with at least nine points in Game 7s.