The jubilant crew of Emirates Team New Zealand sprayed each other with champagne after completing a commanding 7-2 victory over Ineos Britannia on Saturday to defend the America's Cup.

The dominant Kiwis lifted the world's oldest international sporting trophy for the third consecutive time after beating their British opponents by 37 seconds in the ninth race off Barcelona to end the best-of-13 series.

New Zealand raced into a 4-0 lead in the 37th edition of the competition before Britain fought back with two victories on Wednesday.