After a quiet first period, Chicago's Dennis Gilbert got whistled for hooking and the Golden Knights struck first at 7:27 of the second period. Reilly Smith slipped his stick under Corey Crawford's arm to put the puck in the back of the net on the power play giving Vegas a 1-0 lead.
The Golden Knights doubled their lead at 11:24 of the second period. Alex Tuch intercepted a pass along the boards and sent the puck across the slot to Deryk Engelland who buried it to put Vegas up 2-0.
Vegas extended their lead after William Karlsson put home a shorthanded goal at 19:16 of the second period. Reilly Smith picked up the puck in the neutral zone, got Crawford to commit then slipped the puck across the low slot to Karlsson who netted one backdoor to give the Golden Knights a 3-0 lead.
Max Pacioretty grabbed the puck for an odd-man rush and found twine to extend the Golden Knight's lead to 4-0 at 3:17 of the third period.
The Golden Knights netted the final goal at 12:59 of the third period when Ryan Reaves fired a shot from the circle that went under Crawford's arm to add another to the scoresheet at 5-0.
The Blackhawks got on the board late in the third period at 19:33 during a power play when Dominik Kubalik fired a rocket from the high slot after recieving a pass from Alex Nylander to put the final score at 5-1.