Contrasting centuries by Jason Roy and Joe Root paced England to a comfortable six-wicket victory over the West Indies with their record one-day international run chase in a high-scoring opening game of a five-match series in Barbados on Wednesday.

Set what looked a daunting target after Chris Gayle's 24th ODI hundred anchored the home side to 360-8, Roy blazed 123 off 85 balls at the top of the order while Root cruised to a comparatively sedate 102 off 97 deliveries to take help the tourists reach their target with eight balls to spare.