Tomas Hertl scored a hat trick, and Adin Hill made 29 saves for the Golden Knights (38-19-6), who had won four in a row. Kopitar gave the Kings a 1-0 lead at 11:22 of the first period when he tipped in a Joel Edmunson point shot past Hill. Clarke made it 2-0 at 18:29, scoring with a backhand around Hill’s right leg.

The Golden Knights closed strong with three goals — including two from Hertl — in the third period, but it wasn’t enough to erase a slow start.

Adrian Kempe scored the winner in the Los Angeles Kings’ 6-5 victory over the Vegas Golden Knights on Sunday night.