DENVER – Mikko Rantanen scored on the power play at 2:07 into overtime, and the Colorado Avalanche doubled its lead in the second round series over the Vegas Golden Knights with a 3-2 win in Game 2 on Wednesday in Ball Arena.
Rantanen accepted a cross pass from Nathan MacKinnon and he hit the target with a wrist shot from the right circle.
Tyson jost and Brandon saad scored, Samuel Girard had two assists and Philipp grubauer stopped 39 shots for Colorado, who won Game 1 7-1 on Sunday.
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Reilly smith and Alec martinez hit the target and Shea theodore amassed two assists, while Marc-André Fleury stood in front of 22 shots for Vegas.
Game 3 is Friday at T-Mobile Arena in Las Vegas (10 p.m. ET; TVAS, CBC, SN, NBCSN).
Saad gave the Avalanche a 1-0 lead at 3:39 of the first period, coming into the slot and beating Fleury between the pads after a long pass from Girard. Saad has scored one goal in five consecutive games.
Martinez tied the game 1-1 at 9:32 with a shot on reception from the right circle, following a pass from Max Pacioretty.
Jost made it 2-1 at 5:08 pm with a shot from the top of the left circle on the power play.
Video: Rantanen and the Avalanche win game 2
Smith tied it 2-2 at 10:28 of the second period. Jonathan marchessault allowed him to get into the slot, and he backhand scored on the side of the mitt.
The Golden Knights led the Avalanche 15-6 in shots in the third period, and 40-23 in regulation.
Colorado have won six straight games to start the Stanley Cup playoffs, after sweeping the St. Louis Blues in four games in the first round.