Brandon King and Keacy Carty scored centuries in a 209-run partnership which steered the West Indies to an eight-wicket win over England in the third one-day international Wednesday and a 2-1 win in the series.
Earlier, the England innings saw West Indies fast bowler Alzarri Joseph leave the field in a remarkable protest at field placements set by his captain Shai Hope.
Carty reached his maiden century from 97 balls, eclipsing his previous best score in 27 ODIs of 88. He finished 128 not out while King fell just before the end for 102, having reached his third century from 113 deliveries.
Before Wednesday, King had gone 13 innings without a half century and had not scored a century against a full ICC member nation. His earlier hundreds came against Oman and the United Arab Emirates.
King and Carty's partnership was the second-highest for any wicket by the West Indies at home and guided them past England's 263-9 with 42 balls to spare.
“I've been getting a fair amount of starts and I just haven't been carrying on so I was just fortunate it came in such a crucial game and with the series still in doubt,” King said.
“If you're putting in a lot of work off the field you have to believe it's just a matter of time, keep your processes and intensity and just believe in your ability.”
Earlier, Phil Salt and Dan Mousley grafted half centuries which helped England overcome a poor start to reach a competitive total on a pitch which had offered variable bounce.
After England lost the toss, Salt made 74 at the top of the order, sharing 70-run partnerships with Sam Curran (40) and Mousley who posted his maiden ODI half century before falling for 57.
Jamie Overton made 32 from 21 balls and Jofra Archer an unbeaten 38 from 17 deliveries as England added 100 runs from the last 10 overs.
Joseph and Hope engaged in a lengthy argument before the fourth over which was bowled by Joseph and had to be urged by the umpires to resume play. After a ball was played away on the off side during the over, Joseph remonstrated angrily with Hope and, when the over ended he walked from the field, returning after a short break.
West Indies coach Daren Sammy had to move down to the boundary rope to attempt to calm the dispute between bowler and captain.
England slumped to 24-4 at the end of the 10-over power play in the face of some hostile early bowling from West Indies, especially from Joseph who remained visibly angry. He dismissed Jordan Cox (1) with a brute of a ball which spat from just short of a length at 148 kph and which Cox couldn't avoid and gloved to Hope behind the stumps.
Salt reached his fifth ODI half century from 79 balls and went on to 74 when he fell to Matthew Forde after a superb combined catch by Brandon King and Joseph. King reached Salt's towering shot into the deep, took the ball in both hands and flicked it back to Joseph as he balanced before running over the boundary.
Salt's dismissal ended his 70-run partnership for the sixth wicket with Mousley who reached his half century from 64 balls.