After being put in, South Africa struggled to build momentum and posted a modest 136/9 in their 20 overs. Contributions were scattered, with George Linde (23) and Nqobani Mokoena (26*) offering some resistance late in the innings.
New Zealand’s bowling attack kept things tight throughout, led by Lockie Ferguson, who delivered a standout spell of 1/9 in four overs and was named Player of the Match. Mitchell Santner and Ben Sears chipped in with two wickets apiece to restrict the visitors.
In reply, New Zealand chased down the target comfortably, reaching 137/2 in just 16.2 overs. Tom Latham anchored the innings with a composed unbeaten 63, while Devon Conway provided early impetus with a brisk 39.
Despite a brief breakthrough from Keshav Maharaj and Lutho Sipamla, the hosts remained in full control, sealing the win with 22 balls to spare.
With this result, New Zealand move ahead in the series 2-1, continuing their strong form at home.