South Africa clinch 19-run win over New Zealand in fourth T20
New Zealand were well placed to clinch the series midway through their chase in Wellington after the Proteas scored 164-5.
However, from 88-3 after 10 overs, they lost wickets in rapid succession to be all out for 145 off 18.5 overs.
It sends the series, played between weakened sides from both countries, to a decider in Christchurch on Wednesday.
The match swung in favour of South Africa when spinners Keshav Maharaj and Prenelan Subrayen turned the screws through the middle stages of the chase.