Man of the match Martin Guptill felt New Zealand did well to recover from a shocking start to their innings and beat England in the opening one-day international at Lord's.
The Black Caps looked to be in a good position after restricting England to 227-9 but they then found themselves 1-2 after Luke Ronchi and Kane Williamson had gone for ducks.
But Guptill and Ross Taylor (54) salvaged the situation with a stand of 120, and the opener went on to survive a review on 99 and steer his side home.
He became just the second New Zealander to make a one-day international hundred in England, and the first to achieve it at Lord's.
"Yes, there were a few nerves there, but I was just happy to be there at the end and to get a win for the country," said Guptill.
"It was very special. Getting a hundred for your country is always special, no matter where it is, but especially at Lord's.
"Lose two in the first over and it's not easy to come back from that but Ross and I had a good partnership, and we went from there.
"We'll go down to Southampton (for the second ODI on Sunday) and hopefully get a series win."
New Zealand were convincingly beaten in both matches of the two-Test series which preceded the one-dayers, but Guptill said those losses did not hurt their morale.
"No, we had fresh faces coming in over the last couple of days, and they brought confidence," he said.
Skipper Brendon McCullum says New Zealand's victory will give the squad a timely lift.
"It is a confidence booster," said McCullum.
"We turned up knowing we had an experienced team and it's a positive sign that, if you do get into a bit of trouble, you have the self-belief and quality to get out of it."