LAS VEGAS - William Karlsson had the first hat trick in Vegas history and added an assist to help the streaking Golden Knights beat the Toronto Maple Leafs 6-3 on Sunday.

The Western Conference-leading Golden Knights have won seven straight and have earned points in 12 consecutive games, both NHL records for a first-year team. An NHL-best 11-1-1 in December, the Golden Knights are 16-2-1 at home and 26-9-2 overall.

Karlsson pushed his team-leading goals total to 20. Pierre-Edouard Bellemare, Erik Haula and Jonathan Marchessault also scored, and Malcolm Subban made 19 saves.

Auston Matthews scored twice for Toronto, Patrick Marleau added a goal, and Frederik Anderson stopped 25 shots.

Toronto is 11-7-1 against the Western Conference and 8-5-0 against Pacific Division team. The Maple Leafs, who played their 10th road game of the month, finished a five-game trip 2-2-1.

Toronto went 0-for-3 with the man advantage.