WI 80-4published at 06:06 Greenwich Mean Time 21 March 2015
Jonathan Carter is the new man. Boult completes a double-wicket maiden.
Hosts New Zealand through to semi-finals
NZ's Guptill made highest World Cup score
Scored 237 from 163 balls (24 fours, 11 sixes)
Boult took 4-44 as WI collapsed in Wellington
Record number of WC sixes - 31 in match
NZ face South Africa in Tuesday's semi-final
Mark Mitchener, James Gheerbrant and Sam Sheringham
Jonathan Carter is the new man. Boult completes a double-wicket maiden.
Graeme Swann
Ex-England spinner on BBC Test Match Special
"This New Zealand team can't do anything wrong at the moment."
Listen to TMS commentary via the audio icon.
Trent Boult is tearing the West Indies top order apart here. Denesh Ramdin comes and goes in the blink of an eye. Good length, angling in from Boult, Ramdin is late getting his blade down and the ball cannons into his pat so hard it almost rips it off his leg. Plumb lbw, and Boult is now the leading wicket-taker in this World Cup again.
Graeme Swann
Ex-England spinner on BBC Test Match Special
"Vettori is my favourite bowler and batsmen and now fielder. It was flying for six but he took it a good foot in the air. His reaction was so nonchalant - he put the ball on the floor as his whole team ran towards him. What a hero! Give him a knighthood, quickly!"
What a snag! Samuels perishes to an absolute worldy on the rope at third man, and it's Vettori, the oldest man on the pitch, who's claimed it. Samuels upper-cuts, it seems destined to fly for six, but Dan the Man leaps and plucks it nonchalantly out of the sky with one hand. The entire New Zealand team run to him. Quite brilliant.
Now Marlon Samuels joins the party! He picks up consecutive fours off Southee with a crunching drive through the covers and a clip off his toes through midwicket. Then he goes big, stepping away and lofting the bowler effortlessly into the stands at long-off.
Southee responds with a bouncer, but Samuels gets lucky and top-edges it over the keeper for another four. 'Taking Care of Business' blares out over the PA> Plenty more business to take care of yet, but this is a fine start...
Chris Gayle looks to be limping a bit, so it's stand-and-deliver from the big man. This time he climbs into Trent Boult, rocking back in the crease and bopping him back over his head for another maximum to move on to 36 off 16 balls. Then there's a huge shout off the final ball when Boult strikes Gayle on the pads. No dice from the umpire, it looked to be just sliding down leg.
Here's the wily bespectacled spin king Daniel Vettori, proud possessor of the lowest economy rate at this tournament. Gayle is determined to bruise those figures though, and so far his timing is sound. He launches the tweaker for three big sixes into the stands at midwicket! This could be fun while it lasts...
Ooh, Samuels nearly perishes first ball! A short ball hits the shoulder of the bat and loops up just over the head of the man at point. Then McCullum nearly runs out Gayle with an electric pick up and throw in the covers. West Indies are on a bed of nails at the moment.
You can't keep Martin Guptill out of the game! Simmons carves Boult into the stands over point for a big six, but the next delivery is pushed slightly fuller and finds the edge, which is snaffled by Guppers in the cordon.
Finally West Indies find their range. Big pressure on West Indies. First Lendl Simmons smashes Southee over mid-off for four, then Gayle signals his lurking menace, flat-batting a bruising pull shot for six and then heaving over mid-on for four. That's what they need.
New Zealand are buzzing in the field, like wasps over a dropped ice lolly. A tight over from Boult, just one from it.
Well, Tim Southee was convinced but no-one else was, and for good reason it turns out. Nothing on Snicko as the ball passes the bat. A poor review, perhaps just showing how keen New Zealand are to see the back of the dangerous Gayle - he is surely the only man who can threaten this total.
Has Chris Gayle nicked this? New Zealand think so, but the umpire says no. We're going upstairs to sort this one out...
Lendl Simmons is the new man, into the action rather earlier than he would like. He plays out four dots, which means it's a maiden for Trent Boult. Don't worry - there was a maiden in the New Zealand innings, and they scored 393.
Jeremy Coney
Ex-New Zealand captain on BBC Test Match Special
"He looked to heave it away to make something out of these 10 overs but it's too early to do that and the bat was cleaving at empty air."
Listen to TMS commentary via the audio icon.
Wickets in hand, yeah? Oh. New Zealand continue to dominate this match as they strike early with the ball, Trent Boult spearing in a full, swinging delivery and splattering the stumps of Johnson Charles. The swinging bat wasn't even in the same postcode.
So, a momentous task for West Indies. Chris Gayle takes strike to the first ball from Southee. So much depends on him. He's away with a single to mid-off. Johnson Charles is his partner, having replaced the walking wicket Dwayne Smith. He's off the mark with a pull to deep square leg for two.
James Gheerbrant back with you. Tim Southee has the new ball, and we're ready to go again. Can West Indies threaten this huge score?
The word 'roof' is now trending on Twitter in New Zealand after Martin Guptill located that part of the Cake Tin with a huge six.