(Reuters) -Swing bowler Jacob Duffy took four for 35 as New Zealand cruised to an emphatic eight-wicket victory over West Indies in the fifth and final Twenty20 in Dunedin on Thursday, clinching the series 3-1.

West Indies started poorly and looked set for a skittling until Roston Chase, who made 38, and Romario Shepherd, who blasted 36 off 22 balls, helped them to a respectable 140 all out.