The Black Caps have sewn up the one day worldwide series against the West Indies after crushing the visitors in Christchurch by 204 runs.
Two balls later Boult finished off the West Indies by bowling Shannon Gabriel. Given the highly competitive nature of that tournament, the sooner West Indies can identify and settle into a combination that will take them into the tournament and ahead, the better.
Sent into bat first, New Zealand posted a healthy 325/6 after an impressive final ten overs by Henry Nicholls (83n o, 62b, 7×4, 2×6) and Todd Astle (49, 45b, 1×4, 2×6) which yielded 103 runs.
Martin Guptill is healthy again after missing the West Indies ODIs with a left hamstring issue and is nearly certain to be paired with Munro for the five-match Pakistan ODI series, beginning in Wellington on January 6. With a brace of half-centuries already in this series, another strong show will make things interesting on the selection front once Guptill is fit.
Speester Lockie Ferguson followed that with two wickets in consecutive balls, Jason Mohammed unable to control a sharp lifter and popping a return catch, and Rovman Powell losing his off stump.
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The visitors had New Zealand in a spot of bother at 186 for 5 but Nicholls, who ended with a career-best 83 off 62 balls, more than steadied the ship.
The Black Caps have an unassailable 2-nil lead in the one day worldwide series.
Chasing 326 to win, the West Indies never really got going as Boult scythed through their top order, taking out Kyle Hope, Evin Lewis, Shimron Hetmyer and Shai Hope.
"It's a little bit different waking up [on Christmas] morning and saying "Merry Christmas" to everybody".
Management organised a Christmas lunch at the team's Clearwater resort base in north Christchurch for players, who don't have family in the city. I don't think what we saw in the first two games is a fair indication of how well these guys can play. "I thought the bowlers went reasonably well but we let ourselves down in the second half of the game and the last 10 overs". Our guys want to be positive and play an attractive brand, but you can't be reckless with it.
Captain for the day Tom Latham got to 20 off 34 balls and Ross Taylor completed his seventh 50 of the calendar year, to go with two centuries, before being caught behind.