Jonathan Toews scored on a breakaway at 7:36 of overtime Friday night, giving the Chicago Blackhawks a 3-2 victory over the St. Louis Blues and a 3-2 series lead.
Marian Hossa and Ben Smith also scored for the defending Stanley Cup champions, who have won three in a row and can wrap up the first-round series at home Sunday. Four of the first five games in the series have gone to overtime.
T.J. Oshie and Alex Pietrangelo scored for the Blues.
All three of the Blues' home games went to overtime and St. Louis won the first two.
Toews got behind the St. Louis defense on the winner and threw a couple of fakes at Ryan Miller before slipping the puck past the goalie.