The 23-year-old winger scored all four of the Bruins' goals in the team's 4-2 win over the Anaheim Ducks on Monday, October 14, tying him for the most goals in a game in franchise history. He is the 19th player in a Boston uniform to score four goals in a game and the first since Patrice Bergeron on January 6, 2018 against the Carolina Hurricanes. On Thursday, October 17, Pastrnak scored the Bruins' first and last goals in regulation against the Tampa Bay Lightning, both of which came while on the power play. His second goal forced the game to overtime, while he also notched the primary assist on Bergeron's goal in the second period. Pastrnak again recorded an assist and a game-tying goal on October 19, finishing off the week with a two-point game against the Toronto Maple Leafs.
Through eight games this season, Pastrnak has nine goals and six assists for 15 points. He is tied for the league lead in goals and ranks fourth in points this season, and is currently on a six-game point streak dating back to October 8.