PLAYER OF THE GAME: Robin Lehner made 33 saves on 34 shots including 14 stops in the third period as the Golden Knights looked to tie it up.
STAT OF THE GAME: At 18 years, 274 days, Dach became the sixth-youngest Blackhawk to score a goal.
The Blackhawks opened up the scoring at 16:15 of the first period when Kirby Dach tallied his first career goal. Olli Maatta fired a shot from the top of the circle and the puck redirected through traffic, off Dach's knee and into the back of the net to put Chicago up 1-0.
The Golden Knights struck late in the third period at 18:27 after pulling their goalie for the extra attacker. Nick Holden fired the puck from the circle to beat Lehner five-hole and knot the game at 1-1 forcing overtime.
After five minutes of overtime Vegas took a three-round shootout 2-1 with goals from Jonathan Marchessault and Shea Theodore.