Batting first, England was led by Natalie Sciver, who scored a game-high 90 from 96 balls, amassed 307-7 from their 50 overs. Sciver and Dani Wyatt shared in a fifth-wicket partnership of 103 in just under 17 overs that took the match beyond the reach of the West Indies Women. Wyatt contributed 68 to the mammoth total.
Tammy Beaumont (33) and Amy Jones (30) also made useful contributions.
Chinelle Henry was the best of the West Indies bowlers taking 3-59. Afy Fletcher took 2-66.
The West Indies Women were never able to cope with the demand of scoring more than six runs an over and unable to form useful partnerships, were bowled out for 165 in 40.3 overs. The exception was a 70-run second wicket partnership between Kycia Knight and Rashada Williams that produced a respectable 70 runs. Both were dismissed for 39 and 34, respectively.
Captain Hayley Matthews, who retired hurt early on, returned to score 34 for the home side.
Charlie Dean took 4-35 and Kate Cross 2-27 for the victors.
Matthews lamented her team’s inability to stick to the game plan.
"Both facets of the game (batting and bowling) we didn't do what we wanted on a decent and England was able to capitalize on it,” the captain said.
“We're going back to the drawing board and see what we can improve on in the next game. Our power play was pretty good but we let a little too many runs go by in the middle overs. It was good to see the partnership between Kycia and Rashada and I hope we can get a few more of those.”
Bouchier’s 91 off 56 balls, her second successive half-century, helped England to 177 for three, Charlie Dean taking four wickets as New Zealand were restricted to 130 for seven.
England lost Danni Wyatt, back in the side after playing in the Women’s IPL, early but Alice Capsey and Bouchier – hampered by a quad injury – added 75 in 10 overs.
Captain Heather Knight (21 not out) and Nat Sciver-Brunt (29 not out) smashed 35 off the final 14 balls to set the hosts a daunting target.
That target was made more daunting without captain Suzie Bates, injured in the field, and England struck at regular intervals.
Dean grabbed four for 26, and Brooke Holliday was at the top scoring, with 25 for the hosts.
The win gives England an unassailable 3-1 lead in the five-match series, which concludes in Wellington on Friday.
It was a good night for England’s skipper Heather Knight who batted superbly to lead them to their third successive victory.
With a number of well-timed strokes on both sides of the wicket, she made 43 off 27 balls. Earlier opener Sophia Dunkley set the platform with the top score with 44 off 31 balls to lead England to 157-6 off their 20 overs.
In the second half Charlie Dean was the nemesis for the home side as she returned figures of 4-1-19-4 to put a pause on the West Indies victory charge. West Indies were at one stage 103-3 in the 14thover – with 53 needed off six overs – but Dean delivered a winning spell when she dismissed key batters and West Indies finished at 140-8 off their 20 overs.
The key wicket was skipper Hayley Mathews who played some powerful shots in 35 off 31 balls before she was stumped by Amy Jones off Dean. Matthews looked good touch much to the delight of her fans in the stands with six boundaries – which included two classic extra cover drives.
The innings was revived in the middle overs by Rashada Williams and Trishan Holder, on debut in front of her home crowd.
Williams hit five fours in a top score of 38 off 29 balls and looked capable of pulling off a remarkable win. She was, however, trapped leg-before at a crucial stage of 138-7 at the end of the 19th over. The 19-year-old Holder overcame a nervous start to blossom with some attractive shots as she made a run-a-ball 21 in a stand of 40 with Williams.
Despite the loss, West Indies Women's head coach, Courtney Walsh was pleased with the team's performance.
“The effort we've shown in the last two games, in particular this one, is very pleasing. It's also good that we've got some youngsters around who are showing the fight,” he said.
“We're trying to create a different team culture and approach and learning is taking place all the time. It's a loss in terms of the series but I am pleased with what I am seeing with the bigger picture of what lies ahead for the tri-series and World Cup.
Another action-packed match-up is expected on Sunday when the teams meet for the fourth contest on this series. West Indies will need to bounce back in their bid to get a victory over the visitors. First ball is 6pm (5pm Jamaica Time).