A six-wicket haul for Trent Boult and a Ross Taylor century carried New Zealand to a 24-run victory over Australia in the third one-day international today to win the series 2-nil.With this win, New Zealand reclaim the Chappell-Hadlee Trophy while Australia lost their outright hold on the world number one ODI ranking.They slipped to 118 ranking points, equal with South Africa, who beat Sri Lanka in Johannesburg on Saturday to go 3-0 up.South Africa will overtake Australia if they win the remaining two matches in that series.