Rask surrendered four goals on 20 shots as Finland won its first game of the Winter Olympics. Finland will next face Norway on Friday (noon ET).
In other action, Team USA dominated Slovakia and finished with a 7-1 victory in the preliminary round. Slovakian captain and Bruins captain Zdeno Chara finished even with three shots on net in the loss.
Up next, Bruins forward Patrice Bergeron and Team Canada will face Norway at noon ET.
Here is the rest of the Olympic hockey schedule as it relates to the Bruins:
Feb. 14, 3 a.m. ET: Czech Republic (David Krejci) vs. Latvia
Feb. 14, 7:30 a.m. ET: Sweden (Loui Eriksson) vs. Switzerland
Feb. 14, noon ET: Canada (Bergeron) vs. Austria
Feb. 14, noon ET: Norway vs. Finland (Rask)
Feb. 15, 3 a.m. ET: Slovakia (Chara) vs. Slovenia
Feb. 15, noon ET: Switzerland vs. Czech Republic (Krejci)
Feb. 15, noon ET: Sweden (Eriksson) vs. Latvia
Feb. 16, 7:30 a.m. ET: Russia vs. Slovakia (Chara)
Feb. 16, noon ET: Finland (Rask) vs. Canada (Bergeron)
Feb. 18: Eight teams will play in qualification games for the quarterfinals
Feb. 19: Olympic quarterfinal games
Feb. 21: Olympic semifinal games
Feb. 22, 10 a.m. ET: Olympic gold medal game