Patel & Mullaney hundreds put Notts in final
Notts chase 371 - a record in England
Essex made 370-5; 113 off last 10 overs
Centuries for Cook & Ten Doeschate
Notts to play Worcs or Surrey in Lord's final on 1 July
Essex 370-5 (50 overs) v Nottinghamshire
So Essex's 370 owed a lot to Ryan ten Doeschate's quick-fire century, but Alastair Cook also made 133.
Below is the moment he reached his half-century from just 35 balls....
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Dave Cramphorn: I can't imagine the FACES on the Notts team with Cook's knock today.
Dave Cramphorn: Chelmsford is D-Place to be for cricket today!!
James Vincent: All this talk about Essex nightclubs is getting me very sentimental...
BOOM:@EssexCricket, external really are the Talk Of The South
If all this looks confusing to you, you may not have been reading my earlier references to former Essex night clubs.
Will it be a big Friday night on the town for the Essex players after posting that big total?
Essex 370-5 (50 overs) v Nottinghamshire
Ebony Rainford-Brent
Ex-England batter on BBC Radio 5 live sports extra
It's been a perfect one-day innings from Ryan ten Doeschate.
He gave himself time, that point when he hit the four fours back to back that was when he turned the switch, amazing stuff.
Essex 370-5 (50 overs) v Nottinghamshire
My word! What an effort that was in the closing overs from Essex and especially Ryan ten Doeschate.
If you've just joined us, you can see some video clips of Ten Doeschate's big sixes in that century by scrolling through the last few overs.
Essex 370-5 (50 overs) v Nottinghamshire
Ebony Rainford-Brent
Ex-England batter on BBC Radio 5 live sports extra
I think they've done brilliantly. 370 looks good, but I still think it will be a challenge to defend especially what Notts are coming off the back off.
Alastair Cook gave it a bit of impetus but Ten Doeschate's was a masterclass of an innings. I'm looking forward to the second half.
Essex 370-5 (Ten Doeschate 102, Foster 27)
It's been a fine last over to be fair from Jake Ball who keeps it tight and prevents any more boundaries.
James Foster pulls two out into the legside off the final ball and Essex finish on 370-5 in their 50 overs.
The Eagles will fancy defending that, but don't forget Notts scored nearly 430 in their quarter-final against Somerset earlier this week and have the firepower with the bat.
Essex 364-5 (Ten Doeschate 101, Foster 25)
And there is Ryan ten Doeschate's 100.
It's come off just 64 balls and has featured seven fours and five sixes. Devastating stuff!
Essex 361-5 (Ten Doeschate 99, Foster 24)
I think Harry Gurney may want to head home early.
Ten Doeschate moves to within a run of his century as he hammers him again over long-off this time.
The left-armer has conceded 75 from his seven overs.
Essex 353-5 (Ten Doeschate 91, Foster 24)
A wide and then the same result from Ryan ten Doeschate...six more straight down the ground!
Essex 346-5 (Ten Doeschate 85, Foster 24)
It's big and it's out of the ground from Ryan ten Doeschate yet again.
Harry Gurney's slower ball is smashed away and out of the ground over deep mid-wicket!
They do need a new ball this time as that one's probably in the flats out the back.
Ten Doeschate 78, Foster 23
"Essex, Essex!" is the chant from the bulk of the capacity crowd.
The locals are giving their side all the encouragement they can. James Foster gets four with a flat-batted strike over extra cover off Jake Ball.
Ryan ten Doeschate escapes being run out off the last ball as Ball dives on his own bowling, but his shy at the non-striker's end just misses the stumps.
10 runs off that over for the hosts.
Image source, Rex FeaturesCan Essex motor this total up to 360+ off the last three overs?
Ten Doeschate 76, Foster 15
James Foster dispatches the first ball of Harry Gurney's over for four over deep mid-wicket.
Gurney loses his radar with a couple of wides, one down the legside and then another with a poorly executed slower ball out the back of his hand.
Ryan ten Doeschate finishes off that over with a four from a full toss slashed down to third man.
#bbccricket
Nick Sadowsky: not sure I can Face(s) all these terrible puns.
Essex 313-5
Ebony Rainford-Brent
Ex-England batter on BBC Radio 5 live sports extra
He threw the kitchen sink at that. It was pitched up, he put his hands nicely through the ball and accelerated at the end. He got a lot of height on it but it went the distance.
Image source, Rex FeaturesTen Doeschate 69, Foster 8
James Foster pulls James Pattinson for a handsome four to take Essex past 300.
IT'S FREE TACO TIME FOR THE CAPACITY CHELMSFORD CROWD!!!
Ryan ten Doeschate celebrates that achievement by smashing a straight six off the last ball into the River Can behind the ground.
New Balls please????
Ten Doeschate 62, Foster 1
James Foster the new man in for Essex.
Ryan ten Doeschate adds a couple off the last ball of the over from Stuart Broad as Essex nudge towards 300 with five overs to go.
#bbccricket
David McArdle: All these mentions of Chelmsford nightclubs will Evoke happy memories...
Anyone else wish to chip in with the Essex nightclub chat? It doesn't just have to be limited to Chelmsford!
Image source, Rex Features
Essex 295-5
Great catch at square leg from a diving Brendan Taylor.
Ashar Zaidi falls after some good pressure bowling from Stuart Broad. He didn't quite time it to be fair, but it's still a fine catch and Essex's charge gets put on hold yet again.
Ten Doeschate 58, Zaidi 15
I could go on to talk about another former Chelmsford night spot named Zeus, but that's a conversation for another time...
Meanwhile, James Pattinson does a very good job of mixing up his pace as he comes back on from the River End.
Ashar Zaidi breaks the shackles though as he uses the pace to pull one away for four off the final delivery.