Hiller was busiest in the first period, with 20 saves for the NHL-best Ducks, who improved to 39-10-5 and completed a home-and-home sweep of the Kings in the first NHL game ever played outdoors in California.
The game was played in 62-degree temperatures, clear skies and little wind in front of 54,099 fans in Los Angeles.
Jonathan Quick turned aside 18 shots for the struggling Kings, who dropped a fifth straight.
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