The hosts won the second match at Christchurch by eight wickets to take an unassailable 2-0 series lead.
Martin Guptill starred for the hosts once again, smashing his second consecutive century to help his side easily chase down their target of 227.
The third and final ODI will be played in Dunedin on Wednesday.

Ruthless Man City thump Newcastle to reach League Cup final
Alexandra Eala stages comeback to reach Mubadala quarter-finals
F1 legend Mika Häkkinen turns brand ambassador for Only Legends Drive UAE
Guardiola vows to speak up for victims of global conflicts
Arsenal beat Chelsea 1-0 to reach League Cup final
