New Zealand has driven Sri Lanka to victory by four wickets chasing 277 in the fourth one-day international in Nelson.
Luke Ronchi managed 24 runs, including three straight sixes and finished on 32 from 15 balls.
Daniel Vettori hit the winning runs which left 11 balls to spare and enabled New Zealand to go 2-1 up in the seven match series.
The star of the game, however, was Kane Williamson who anchored the innings with 103 off 107 balls.
The fifth match will be held in Dunedin this coming Friday.