Just before kickoff in the All Blacks test against the Wallabies on August 24, data usage spiked as New Zealanders uploaded photos of themselves, according to a research by Vodafone.
And on a Sunday morning just before Races 9 and 10 of the America's Cup last month, when both Oracle and Emirates Team New Zealand, put points on the scoreboard Vodafone customers used 2.29 terabytes of data - the equivalent of more than 200 movie downloads.
Vodafone launched its 4G service nine months ago and has just released a white paper that mined information from the network's 20,000 users to see what they were doing.
The research tracked when Kiwis started using their smart devices and what sites they visited.
Just before 12pm sees the biggest spike of data use, with other peaks at 2pm and about 4.30pm before dipping at 6pm.