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Nine games; five in Division One and four in Division Two
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Notts 280-4 v Durham 378
Jack Haynes is the latest batter in this match to be enjoying the short boundary.
He rocks back and carves George Drissell through midwicket for four.
The spinner is then driven through the covers by Matt Montgomery for the second boundary of the over.
The deficit is into double figures and Matthew Potts returns with six overs of the day remaining.
Close: Essex 582-6d v Surrey 109-1
Mark Church
BBC Radio London commentator
Image source, Rex FeaturesOllie Pope and Rory Burns have played very well tonight. Well played Matt Critchley and Michael Pepper with their hundreds.
Tomorrow will be all about the bat again and all about how Essex pick up some wickets.
But it's been a thoroughly enjoyable day of cricket once again.
Close: Somerset 637-6 (lead by 483) v Worcs 154
Anthony Gibson
BBC Radio Somerset
The innings of a lifetime from Tom Banton!
What an innings, what a magnificent mammoth effort.
An memorable innings on an historic day for Somerset County Cricket Club.
What a way to start their 150th anniversary year.
Last ball of the day and Banton settles with turning that around the corner to take his total onto 344 and Somerset will finish on 637-6.
Notts 266-4 v Durham 378
Almost a superb slips grab by Colin Ackermann, but Matt Montgomery survives.
He aimed a huge swipe at the final ball of Will Rhodes' over which flew high to Ackermann who leapt high and got a hand to it.
He looks to grab it at the second attempt, but it doesn't stick.
Lifeline for Montgomery on four.
Essex 582-6d v Surrey 109-1
Image source, Rex FeaturesA day again dominated by the bat.
Centuries from Matt Critchley and Michael Pepper helped Essex to their second-highest total against Surrey.
The early dismissal of Dom Sibley gave Essex supporters hope their attack might find things easier than their opponents but Critchley dropping Ollie Pope when he had only scored nine looked a big miss and has proved so.
Rory Burns has looked untroubled.in reaching 59 not out and Pope has got to 45.
We still have two days left but anything other than a draw looks a tall order.
Warks 210-2 v Sussex 528
Rob Yates nails his 16th boundary and with it goes to an 11th first-class century.
He has got there in just 132 balls and for good measure sends the next ball for four as well.
Somerset 637-6 (lead by 483) v Worcs 154
Image source, Getty ImagesThe day belongs to Tom Banton as does the new record score for Somerset with the batsman smashing a full toss for four with the penultimate delivery of the day.
Banton's unbeaten 344 has overtaken a glittering list of stars and most importantly eclipsed the 342 scored by Justin Langer against Surrey at Guildford in 2006.
He has batted all day as Somerset have all shut down Worcestershire's hopes of taking anything from this game. Solid contributions from James Rew (152) and captain Lewis Gregory (30no).
That was a superb knock from a man better known for exploits in short form cricket and a real statement of intent for the season
Notts 253-4 v Durham 378
It's a little bit uppish, but it brings Jack Haynes a second boundary and takes him into double figures.
It also brings up a first batting point for the hosts.
Essex 582-6d v Surrey 106-1
Surrey get to three figures and shortly after, Rory Burns sweeps Simon Harmer away to the boundary for four.
We are about to start the final over of the day at Chelmsford.
Warks 200-2 v Sussex 528
James Coles is on for Sussex with his slow left-armers and Sam Hain forces his fourth ball away for a single and up comes the 200 for the home side inside 45 overs.
Yorks 169-5 & 121 (lead by 41 runs) v Hants 249
Jonathan Doidge
BBC Radio Leeds cricket commentator
Two quick deliveries and the game has changed dramatically in the space of a few deliveries.
Two quick wickets.
A lot now resting on the shoulders of Adam Lyth.
Somerset 617-6 (lead by 463) v Worcs 154
Banton is riding his luck as he nears the Somerset highest score record of 343.
Brett D'Oliveira does the fielding off his own bowling as Banton reaches for a sweep and top edges it to the short midwicket area.
It was a difficult swirler, coming over his shoulder, but he might feel he should have got there.
Banton is seven runs away from matching Justin Langer's club record of 342 in 2006. Closing in on history and fortune looks with him.
McCann c Robinson b Coughlin 79 (Notts 244-4 v Durham 378)
Durham keep chipping away as batters with starts keep getting themselves out.
Freddie McCann as he plays at a Paul Coughlin ball wide of off stump that he should have left.
He sends a thick edge through to Ollie Robinson who takes a two-handed catch jumping to his left.
Matt Montgomery joins Jack Haynes (6) who is still getting going.
Warks 198-2 v Sussex 528
Rob Yates drives away from his body and the ball is in the air but rockets past Tom Clark at second slip and away for four more runs.
Yates to 94 now.
George Hill b Baker 4 (Yorks 162-5, lead by 34)
And bang on cue.... another one for Hampshire and another for Baker.
George Hill has been there three balls, edged one four and then been beaten for pace by Sonny Baker.
Sales b Stewart 8 (Northants 54-3 v Kent - Target 260)
Northants positive start has stalled as a third wicket falls.
James Sales decides to shoulder arms and it proves a huge misjudgment as Grant Stewart gets one to jag back sharply and clatters into the top of off-stump.
Kent are seven wickets away and we have just over 13 overs left in the evening session.
Jonny Bairstow b Baker 56 (Yorks 158-4, lead by 30)
Big swing and a miss from the Yorkshire skipper and his latterly disciplined innings comes to an end, bowled by Sonny Baker.
Breakthrough for Hampshire who will fancy taking this game by the scruff before the close.
Somerset 592-6 v Worcs 154
Banton hits Tom Hinley for consecutive boundaries to move clear of Sir Viv Richards 322 as the second highest ever Somerset individual score.
Justin Langer's 342 remains the target as the high water mark and he is 17 runs away from passing that.
Essex 582-6d v Surrey 90-1
Image source, Rex FeaturesThe Surrey skipper has been watchful and gets to his half century by pulling his 114th delivery to the mid-wicket fence.
Seven boundaries in Burns' innings.
Essex 582-6d v Surrey 86-1
Rory Burns cuts a Simon Harmer delivery straight into Charlie Allison at silly mid-off.
That will leave a bruise.
I guess it's called silly for a reason.