Andrew Samson
BBC Test Match Special statistician

"Today's match has broken the record for most sixes in a World Cup match.

"A total of 26 have been hit so far, including one on to the roof, to break the previous best of 22 set by Pakistan against Zimbabwe in 2007 and West Indies against Zimbabwe in 2015, when Chris Gayle made his 215."

Daniel Vettori returns after getting an early savaging from Chris Gayle. His troubles are not at an end though. First Darren Sammy smites him over cover for four, then Carter helps himself to consecutive boundaries, slogging over midwicket for six and then driving through cover for four.

It looks like Trent Boult is going to bowl his full allocation here. He continues for his ninth over, and once again he manages to get a grip on the spiralling run rate - just two singles from a tight over.

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Darren Sammy is the new man and he's off the mark in style, pulverising a drive through the covers for four. And he repeats the trick of the next ball, climbing into a full ball and smoking it to the rope. He can certainly whack it, but for how long?

Jeremy Coney
Ex-New Zealand captain on BBC Test Match Special

"How much was that the field brought up into the circle on the on side and Gayle looking to hit on the pull into that area? He is an icon in the T20 game and brings that to the other formats. People stop ironing their underpants when Gayle comes to the crease."

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That's the key wicket. Milne's pace does for Chris Gayle, sneaking through his attempted cover drive and cannoning into the top of off stump via an inside edge. Game over?

Scorecard

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Jonathan Carter has an important supporting role to play here. He can't afford to let the run rate slide, and he keeps the scoreboard moving with a pull through midwicket for four. Riled up, Trent Boult comes back superbly - fizzing a short ball past Carter's nose and then sliding one just past his outside edge.

RebeccaB70: So, cricket nowadays is all about the batters, bowlers don't get a look in and... what's that? Boult has four already?

David Wright: What a Cricket World Cup. What a chase this could be. Over to you Chris Gayle, anything Guptill can do...

Jared Maobe: It's New Zealand's day surely, How did Vettori catch Samuels' six there??? Top drawer.

Jeremy Coney
Ex-New Zealand captain on BBC Test Match Special

"It has been a very interesting West Indian reply. They began uncertain in how they were gong to play it. They were quite defensive to try and see off the combined threat of Boult of Southee. But after losing a couple of wickets they really opened up."

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Chris Gayle isn't bothering with the off side at the moment. Milne sends down an anaemic bouncer and Gayle languidly smears it into the stands at midwicket for another six. He is in the mood tonight. Time for drinks, and do you know what, I'm really not sure if West Indies are in this game or not. It's great entertainment though.

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Andrew Samson
BBC Test Match Special statistician

"Chris Gayle is the first player to hit seven sixes in his first 50 runs in an ODI.

"He now has 25 in this World Cup, the most in one tournament, beating AB de Villiers' 20 (also in this World Cup).

"He currently has 36 World Cup sixes in his career, equal with AB de Villiers as the most (as at seven sixes today)."

Trent Boult is able to put the squeeze on this burgeoning run rate by bowling a good, tight channel outside off stump. The watchful Carter blocks out six dots to give Boult his third maiden.

Andrew Samson
BBC Test Match Special statistician

Leading wicket-takers in overs 1-10 in the tournament:

Trent Boult 198 balls, 120 runs, 10 wickets at 12.00 average with a rate per over of 3.63

Jerome Taylor 186 balls, 128 runs, nine wickets at 14.22 average with RPO of 4.12

Mitchell Starc 138 balls, 93 runs, seven wickets at 13.28 with RPO of 4.04

Jason Holder 198 balls, 118 runs, seven wickets at 16.85 with RPO of 3.57

Brendon McCullum turns to raw pace to try and derail the steaming Gayle Express, and summons the rapid youngster Adam Milne. He keeps Gayle honest initially, but then strays too straight, allowing the batsman to flick him to fine leg for four. That brings up 50 off 26 balls for Chris Gayle - he needs to at least triple that to give West Indies a chance.

Jonathan Carter gets in on the act, cutting a rare bad ball from Boult past point for four to open his account. And again! This a classic West Indian stroke, high backlift, flourishing blade, driven sweetly through the covers. Runs continue to flow.

Sir Ian Botham on Daniel Vettori's catch:, external That has got to be one of the catches of this World Cup! The evergreen Daniel Vettori... magnificent!!

Graeme Swann
Ex-England spinner on BBC Test Match Special

"If New Zealand don't win this World Cup then they'll never win it. If Daniel Vettori is taking one-handed catches on the boundary like Michael Jordan then this is your time."

Gayle or bust now for the West Indies. He continues to make the improbable seem just about possible, flat-batting Tim Southee into the stands at square leg, then hoicking him over long-on for an absolutely enormous maximum. That went twenty rows back. Monstrous.

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West Indies 80-4 from 10 overs (target 394)

Batsmen: Gayle 36 from 17 balls (five sixes), Carter 0

Fall of wickets: 4-1 (Charles 3), 27-2 (Simmons 12), 80-3 (Samuels 27), 80-4 (Ramdin 0)

Bowling figures: Southee 4-0-41-0, Boult 5-2-18-4, Vettori 1-0-21-0

New Zealand 393-6: Guptill 237 from 163 balls (11 sixes and 24 fours)

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Scorecard