The 166-run partnership between Martin Guptill and Brendon McCullum is New Zealand's fourth-highest for the opening wicket in ODIs, and their highest in World Cups.
Martin Guptill registered his 10th half-century in one-day internationals, and finished unbeaten on 86
Brendon McCullum reached his 19th half-century in ODIs, and finished unbeaten on 76.
This is New Zealand's sixth ten-wicket win in ODIs, and their second in World Cups. Their first one was against Kenya in their opening game of this tournament.
It's Zimbabwe's second ten-wicket defeat in World Cups - their first one was in 1983 against West Indies.