Devon Conway and Rachin Ravindra smashed centuries to power New Zealand to a crushing nine-wicket win over defending champions England in the opening match of the World Cup. The left-handed pair of Conway (152) and Ravindra (123) put on an unbeaten stand of 273 for the second wicket as the Black Caps comfortably overhauled the 283 target with 13.4 overs to spare.