You can take a look at Callum's match report while all that sinks in. England and West Indies will now reassemble for the Twenty20 series, which begins in Northampton on Tuesday.
Before then, there's plenty of Men's World Cup action to keep you going - but you'll forgive me if I leave you with Fran Wilson's catch. A moment to savour. Bye for now.
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With Bryony Smith taking her first ODI wicket, Kate Cross bowling well again and England holding their catches, West Indies stumbled to another heavy defeat.
Post update
We then had two of the game's magic moments in successive balls - with Hayley Matthews smashing a six and then falling to a breathtaking catch by Fran Wilson at cover.
Post update
Captain Heather Knight then flayed an unbeaten 40 from only 19 balls to help England to 258-4. West Indies' target was then bumped up to 267 from 39 overs by DLS after that early rain break.
Post update
Just to point you towards the best bits of today's game - Amy Jones (80), Sarah Taylor (70) and Tammy Beaumont (46) led the way early on:
Watch: Knight bowls Connell to seal the win
And here's how the captain sealed England's victory:
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Joe Walker: Close then. Feel a bit sorry for the Windies women.
Janet Hopper: It's superwoman... Nah it's @fwilson07 showing Premier League goalkeepers how it's done. WHAT. A. CATCH. I don't know how anyone does that. Brilliance.
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After briefly forgetting to pick up the trophy from Colin Graves, Heather Knight then has to run for cover as she's doused in champagne by her team-mates.
Captain's view
England captain Heather Knight: "I think that was probably our best performance. We've been clinical and ruthless, different people have stepped up, and we just want to keep it going. Bryony Smith bowled brilliantly and I was really pleased with the all-round squad performance. There might be a couple of changes for the T20s, but generally we'll stay consistent.
On her unbeaten 40 from 19 balls: "I quite enjoyed it! It's a role I tend to play in T20, thankfully it came off today.
On Fran Wilson's catch: "That's ridiculous. It has to go up as one of the best catches I've ever seen live. I can't wait to see the highlights."
Post update
England are getting their medals.
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West Indies vice-captain Hayley Matthews: "We have had a pretty disappointing series. What is important for us is looking at where we've improved from the first game til today. I think if you really look at our bowling it has really improved throughout the series.
"The weather hasn't helped. It's never good playing cricket when there's rain around and DLS coming into effect but we can't use that as an excuse.
"The England girls bowled pretty well. They bowled a tight line and length and we struggled a bit to manipulate their bowling."
Ramharack run out by Jones
Here's how Amy Jones and Sarah Taylor combined to run out Karishma Ramharack...
Post update
Captain Stafanie Taylor was still in hospital having a scan, the last we heard, so we're going to hear from vice-captain Hayley Matthews.
Player of the series
Player of the series Amy Jones: "I've done some good work with the batting coach Ali Maiden and I feel in good form. I love opening the batting and feel comfortable there. I've been pretty good against spin, we've worked on footwork and getting right to the ball, and I'm happy it's paid off for all of us. I love batting with Tammy, I think we compliment each other and hit the ball to different areas."
Player of the match (and series)
The player of the match - and the series - is Amy Jones.
Happy birthday, Amy!
Post update
So, England's record at Fortress Chelmsford becomes... played 14, won 14.
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#bbccricket
SDrewe: The #flyingfran is as good as Ben Stokes if not better! Well done Fran.
Jack Beecroft: Absolutely brilliant, one of the best catches this summer. That ball was going hard though the covers.
Post update
And if you've not seen this catch by Fran Wilson earlier... WATCH IT!
Champagne moment
ENGLAND BEAT WEST INDIES BY 135 RUNS, WIN ODI SERIES 3-0
Post update
Natalie Germanos
BBC Test Match Special
I've been impressed by England's depth in this series. They've got a lot of options with the bat, and then plenty of options with the ball. Kate Cross has shown she can take the new ball, Sophie Ecclestone is bowling beautifully.
For the West Indies, it's showing their lack of depth. Not having Deandra Dottin has made a massive difference.
Live Reporting
Mark Mitchener and Callum Matthews
All times stated are UK
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Latest PostPost update
You can take a look at Callum's match report while all that sinks in. England and West Indies will now reassemble for the Twenty20 series, which begins in Northampton on Tuesday.
Before then, there's plenty of Men's World Cup action to keep you going - but you'll forgive me if I leave you with Fran Wilson's catch. A moment to savour. Bye for now.
Post update
With Bryony Smith taking her first ODI wicket, Kate Cross bowling well again and England holding their catches, West Indies stumbled to another heavy defeat.
Post update
We then had two of the game's magic moments in successive balls - with Hayley Matthews smashing a six and then falling to a breathtaking catch by Fran Wilson at cover.
Post update
Captain Heather Knight then flayed an unbeaten 40 from only 19 balls to help England to 258-4. West Indies' target was then bumped up to 267 from 39 overs by DLS after that early rain break.
Post update
Just to point you towards the best bits of today's game - Amy Jones (80), Sarah Taylor (70) and Tammy Beaumont (46) led the way early on:
Watch: Knight bowls Connell to seal the win
And here's how the captain sealed England's victory:
Get Involved
#bbccricket
Joe Walker: Close then. Feel a bit sorry for the Windies women.
Janet Hopper: It's superwoman... Nah it's @fwilson07 showing Premier League goalkeepers how it's done. WHAT. A. CATCH. I don't know how anyone does that. Brilliance.
Post update
After briefly forgetting to pick up the trophy from Colin Graves, Heather Knight then has to run for cover as she's doused in champagne by her team-mates.
Captain's view
England captain Heather Knight: "I think that was probably our best performance. We've been clinical and ruthless, different people have stepped up, and we just want to keep it going. Bryony Smith bowled brilliantly and I was really pleased with the all-round squad performance. There might be a couple of changes for the T20s, but generally we'll stay consistent.
On her unbeaten 40 from 19 balls: "I quite enjoyed it! It's a role I tend to play in T20, thankfully it came off today.
On Fran Wilson's catch: "That's ridiculous. It has to go up as one of the best catches I've ever seen live. I can't wait to see the highlights."
Post update
England are getting their medals.
Post update
West Indies vice-captain Hayley Matthews: "We have had a pretty disappointing series. What is important for us is looking at where we've improved from the first game til today. I think if you really look at our bowling it has really improved throughout the series.
"The weather hasn't helped. It's never good playing cricket when there's rain around and DLS coming into effect but we can't use that as an excuse.
"The England girls bowled pretty well. They bowled a tight line and length and we struggled a bit to manipulate their bowling."
Ramharack run out by Jones
Here's how Amy Jones and Sarah Taylor combined to run out Karishma Ramharack...
Post update
Captain Stafanie Taylor was still in hospital having a scan, the last we heard, so we're going to hear from vice-captain Hayley Matthews.
Player of the series
Player of the series Amy Jones: "I've done some good work with the batting coach Ali Maiden and I feel in good form. I love opening the batting and feel comfortable there. I've been pretty good against spin, we've worked on footwork and getting right to the ball, and I'm happy it's paid off for all of us. I love batting with Tammy, I think we compliment each other and hit the ball to different areas."
Player of the match (and series)
The player of the match - and the series - is Amy Jones.
Happy birthday, Amy!
Post update
So, England's record at Fortress Chelmsford becomes... played 14, won 14.
Get Involved
#bbccricket
SDrewe: The #flyingfran is as good as Ben Stokes if not better! Well done Fran.
Jack Beecroft: Absolutely brilliant, one of the best catches this summer. That ball was going hard though the covers.
Post update
And if you've not seen this catch by Fran Wilson earlier... WATCH IT!
Champagne moment
ENGLAND BEAT WEST INDIES BY 135 RUNS, WIN ODI SERIES 3-0
Post update
Natalie Germanos
BBC Test Match Special
I've been impressed by England's depth in this series. They've got a lot of options with the bat, and then plenty of options with the ball. Kate Cross has shown she can take the new ball, Sophie Ecclestone is bowling beautifully.
For the West Indies, it's showing their lack of depth. Not having Deandra Dottin has made a massive difference.