New Zealand skipper Amelia Kerr hits out against South Africa at the Basin Reserve in Wellington. Photo: Getty
Kerr clobbered 179 not out as the White Ferns chased down their 346-run target with two balls and two wickets to spare.
The chase eclipses the 280 the side successfully chased in 2022.
The target came courtesy of 91 by Anneke Bosch, backed up by 69 from South Africa skipper Laura Wolvaardt.
Bree Illing was the pick of the New Zealand bowlers, taking 3 for 60.
In reply, Suzie Bates went early for eight, the top order unable to get going before Kerr came to the crease with Izzy Gaze.
Gaze combined with her captain for a 120-run partnership before she was out for 68.
But Kerr kept things ticking along as she kept losing partners, Kayley Knight there at the end with her captain as they sealed the historic win.
