Philadelphia's Ivan Provorov scored at 15:03 of the second overtime Thursday night, and the Flyers forced a seventh game in the Eastern Conference semifinals by beating the New York Islanders 5-4 in Toronto.

Thatcher Demko had 48 saves and Quinn Hughes broke the NHL playoff scoring record for rookie defensemen as the Vancouver Canucks staved off elimination in their Western Conference second-round series for the second straight game with a 4-0 victory over the Vegas Golden Knights on Thursday night in Edmonton.