The Black Caps maintained their unblemished record at the University Oval with an eight-wicket win against the West Indies in Dunedin yesterday to seal a 3-1 series victory.
Jacob Duffy set up the win with a fifth T20 four-wicket haul.
Three of those wickets came in one extraordinary over, which warmed up the 2455 spectators.
The bowling at the death was more accurate, and the chase was mostly painless.
It was a quality outing by Walter’s side.
"I felt we've been sort of on the brink of a really strong performance," he said.
"We've done little bits well here and there, but not everything well together.
"The bowlers set the tone again and we managed to tidy up the tail a lot more convincingly than what's happened in the past couple of games.
"And then the opening partnership pretty much knocked out the stuffing of the chase."
Duffy nabbed three wickets in the third over and finished with four for 35.
The West Indies were rolled for 140 in the 19th over.
The chase was smooth.
Tim Robinson smoked a cover drive which would have rolled out of the ground and on to the street had there not been an advertising hoarding to stop it.
Devon Conway got cute with a scoop shot and celebrated with a fist pump.
Robinson thumped a ball from Jason Holder back down the ground for six as he marched towards 50.
But he was deceived by a slower ball from Romario Shepherd and bowled for 45, ending a 70-run stand for the opening wicket.
His departure slowed progress, but that was all.
The Black Caps had the game in hand.
Conway (47 not out) nudged the ball down to long on to clinch the win in the 16th over.
Earlier, Duffy took a battering in the opening over but returned serve in his next.
West Indies captain Shai Hope skied a towering catch which drifted backwards and Conway was able to get under it with the gloves.
The keeper had a long wait while the ball made its way back to Earth.
It was Duffy’s 50th T20 international wicket. He is the joint fastest New Zealand bowler by innings to reach the mark.
He shares the spoils with Trent Boult. They took 36 innings to nab 50 scalps.
"There was a period of time where I didn't think I'd be taking one wicket for New Zealand," Duffy said.
"So I guess to be here 50 later is very, very cool and satisfying. And, yeah, I guess those grindy years early in my career where things didn't always go my way, I guess they're coming back to [help] me a little bit now."
Duffy took two more wickets in the over.
The dismissal of Ackeem Auguste was deeply satisfying.
He bowled the left-hander with an inswinger. And two balls later, Sherfane Rutherford nicked off for a duck.
Roston Chase led the fightback. He whipped a delivery from Ish Sodhi over the rope at wide long on, and Jason Holder clonked a delivery from Michael Bracewell into the sightscreen.
The Windies were keeping the accelerator under foot despite stacking up some losses in the wickets column.
But the Black Caps secured an important double breakthrough.
Jimmy Neesham nicked out Chase for 38 and Holder steered a catch to backward point on 20.
Shepherd clouted back-to-back sixes off Duffy before he holed out for a hard-hit 36 at the death.
