Postpublished at 18:25 British Summer Time 29 September 2017
Dan Norcross
BBC Test Match Special
West Indies' thoughts have probably turned to the in-flight entertainment.
England win series 4-0
England win with 12 overs to spare
Bairstow 141*, Roy 96, Root 46*
W Indies 288-6: S Hope 72, Gayle 40
Ball 1-94: England's third worst in ODIs
Kal Sajad, Justin Goulding and Stephan Shemilt
Dan Norcross
BBC Test Match Special
West Indies' thoughts have probably turned to the in-flight entertainment.
Target 289
West Indies are going through the motions here as Marlon Samuels continues. How many times have England scored two runs in this innings? They have three sets of twos this over. It's a combination of brilliant running and a lack of intensity in the field. Bairstow takes a single to keep the strike. He is on 49.
Phil Tufnell
Ex-England spinner on BBC Test Match Special
The game is rapidly slipping away from West Indies. The new captain might need a few words in his shell-like.
Roy 76 (61), Bairstow 42 (41)
West Indies with their shoulders slouched and looking as if they've resigned to their fate. Roy and Bairstow easily working the gaps and taking the singles. Nurse finds the edge of Roy's bat, Cummins on the chase down to the third man boundary. He tries to flick the ball back as he dives feet first. The flick doesn't come off the first time so he tries again. But his feet are touching the rope. Four signalled. He did all the hard work there.
Andy Zaltzman
BBC Test Match Special statistician
England's openers have shared a century stand for the second time in successive ODIs for the first time since Nick Knight and Marcus Trescothick in 2003.
Roy 70, Bairstow 40
Marlon Samuels, who wasted a lot of balls with the bat today, looks to make amends with his bowling. Nothing at all to trouble England. Two runs down to deep cover, a clip to square-leg for two more and a drive to long-off for a single. All to Jason Roy.
Time for drinks. Time for West Indies to figure out what they can do here.
Eng 105-0
England have raced away to 100 inside 15 overs and they have looked so comfortable in doing so.
Roy chops Nurse into the turf, the ball loops up but they have the understanding to run a quick single. They run two more down to mid-on, where probably should have only been one.
I'm really liking this Roy and Bairstow opening pair for England.
Michael Vaughan
Ex-England captain on BBC Test Match Special
I can remember when the fixtures came out and we were wondering how you can play cricket at the end of September. It's been glorious in the last few hours, very pleasant.
Roy 61, Bairstow 37
Jason Roy drains the sweat from his helmet then seconds later he swivels on the foot and pulls Alzarri Joseph for four.
The 20-year-old Joseph was so impressive at The Oval but has struggled with his line here. He's also sending in the short stuff which the England pair are picking up too easily.
And there he goes again - too short, too wide, dragged onto the leg side by Roy for four.
Andy Zaltzman
BBC Test Match Special statistician
Jason Roy's half-century came off 43 balls and contained seven fours. It is his sixth ODI fifty this year.
Michael Vaughan
Ex-England captain on BBC Test Match Special
You've got to respect the good ball - and Jason Roy has done that. Then we has had the chance, he's thrown the kitchen sink at it. HIt's been a good innings.
Eng 88-0
A second consecutive ODI fifty for Jason Roy who has made the most of his chance after the absence of Alex Hales.
He has the perfect platform here to convert it into a century. Three from the Nurse over.
#bbccricket
Mark Whitrod: Is it only me who thinks that Roy hogs the bowling? He has faced almost twice as many deliveries as JB so far.
Back comes Alzarri Joseph. He has such an angry face. It gets even angrier as bowls a dreadful short ball which is well wide of the off-stump and is cut by Bairstow for four.
A single to Roy takes him to 49.
The Southampton crowd are all wrapped up warm. We've done well with the weather today after that delayed start.
A top-edged pull down to the square-leg boundary adds two more to Bairstow's score.
Text 81111
In baseball (a sport I love as much as cricket) there is the concept of the ‘designated hitter’ who hits but doesn’t field. It is often used to prolong the careers of destructive, entertaining hitters who frankly are a liability in all other ways. Is there room for the concept in 50-over cricket? Or even just in T20? Could be rather fun to watch Chris Gayle mashing for another five years or so.
Tim in Marlow
Target 289
Having seen his pace bowlers go for some, skipper Jason Mohammed turns to the spin of Ashley Nurse. We saw what Rashid and Moeen did in the middle overs earlier, can Nurse have the same impact in stopping the flow of runs?
Nurse gives it some flight and Bairstow, with all the time in the world, drives through the covers for four. A gift. Six from the over.
Michael Vaughan
Ex-England captain on BBC Test Match Special
Roy has to make this count, to go on and get a big score. He has to send a message to the selectors that they can't drop him, that he has to be part of the first one-day game in Australia.
Roy 47, Bairstow 19
Bairstow happy to play second fiddle to Jason Roy, taking a single down to mid-off and kindly giving the strike back to his partner.
Roy clips off his legs for two more then turns one to mid-wicket for a single. Poor, poor bowling from Cummins, on the leg side which Bairstow easily works down to the boundary for four. Wasn't a bad over up until that point. Eight from it.
#bbccricket
Dan O'Brien: Champagne shot of the season should be Moeen's six at Old Trafford that Bairstow caught on the balcony.