Leaders Notts bowl out Hampshire for 226 on opening day at the Ageas Bowl
Yorkshire 95-8 as 18 wickets falls on day one against Warwickshire
Luke Wells' 103 helps Lancashire to 364-8 against Somerset
Former England captain Alastair Cook hits unbeaten 140 for Essex
Durham's David Bedingham becomes second player to reach 1,000 runs for season
Former Sussex skipper Ben Brown hits 111 not out against Leicestershire
Somerset v Lancashire 276-7
What a session, it started with a Luke Wells century, then we saw a flurry of wickets, before Steven Croft steadied the ship. He's on 41 not out at Tea, alongside Tom Bailey who has three.
Dawson c Duckett b Paterson 31 (Hampshire 154-6 v Notts)
There's Nottinghamshire's second bowling point as Dane Paterson finds the edge and Ben Duckett makes no mistake at second slip.
The South African pace bowler has made a habit this season of picking up wickets when Notts really need them, and that's his 400th in first-class cricket.
Is he going to finish the summer with a Championship winners' medal? Too early to say, but they've certainly got a great chance.
D3: Middlesex 144 v Worcestershire - tea
Kevin Hand
BBC Radio London commentator
Middlesex will be massively disappointed with their batting performance albeit on a green top in September.
Worcestershire persevered with nagging lines and lengths throughout the innings but on a couple of occasions the hosts looked as though they might settle into a recovery.
But as wickets tumbled around Max Holden, the only batsman to go past 20, then the innings collapsed to swift end.
With 45 overs left on day one, Worcestershire themselves must be wary of the seaming surface and a strong host attack.
D2: Northamptonshire 183 v Durham - tea
Martin Emmerson
BBC Radio Newcastle commentator
Matty Potts achieved a double-wicket maiden to help end the Northants innings as he bowled Simon Kerrigan for one in the 55th over and then had Ben Sanderson lbw for a third-ball duck.
Kerrigan left a ball which came back in and trimmed his bails. It was a bad leave. Potts ended up with 4-42, his second-best figures in FC cricket.
Luke Procter and James Sales had been offering quite a bit of resistance after lunch. Their partnership of 66 for the seventh wicket ended when Procter was bowled by spinner Liam Trevaskis on 76.
Sales finished on 38* as wickets fell at the other end.as Northants slipped from 173-7 to 183 all out in the space of four overs.
Surrey v Essex 202-2
Seasons come, seasons go, but some things never change - like the enduring quality of former England captain Alastair Cook.
He reaches a 183-ball century by pulling a short ball from Jordan Clark away for a single.
It's his second Championship century of the season and has featured 16 fours. Dan Lawrence is 27 not out at the other end.
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Somerset v Lancashire 269-7
Somerset turn to spin.
Roelof van der Merwe is given the ball.
Tea has been taken early at Lord's and Northampton where the home side's have been bowled out cheaply.
Middlesex managed only144, with Max Holden's 52 the only score of note, as Ed Barnard (4-43) and Joe Leach (3-30) were among the wickets for Worcestershire in their Division Three game.
In Division Two, Northamptonshire lost their last four wickets for 10 runs as they were all out for 183 against Durham, for whom Matty Potts took 4-42.
Luke Procter made 76 and put on 66 with James Sales, who was 38 not out when the innings came to an end.
Lamb lbw b Brooks 0 (Somerset v Lancashire 268-7)
Image source, Getty ImagesWicket number three for Jack Brooks who pins Danny Lamb for a duck.
This is Somerset's opportunity to sweep through the tail. Tom Bailey is the new man in.
Yorkshire 29-3 v Warwickshire 155
Woakes is shining with the ball. Earlier he grabbed another milestone with the bat.
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Hampshire 148-5 v Nottinghamshire
We have spin at the Ageas Bowl and Liam Patterson-White's second over begins with four byes to Liam Dawson, who adds three runs off the bat to progress to 26 not out.
Malan c Bethell b Woakes 9 (Yorkshire 27-3 v Warwickshire 155)
Chris Woakes gets his England teammate.
It's another beauty from the Warwickshire all-rounder, as Dawid Malan plays one straight to point.
The visitors are really starting to believe now. New man Harry Brook is greeted by five slips.
Vilas lbw b Brooks 36 (Somerset v Lancashire 266-6)
How they needed this.
Lancashire looked to be cruising again, so on comes Jack Brooks, who pins Lancashire skipper Dane Vilas leg before.
A big breakthrough, now to try and prize another.
Hampshire 140-5 v Nottinghamshire
Joey Evison tries out Liam Dawson with a short one and the Hampshire all-rounder's timing is perfect as he swivels to pull it away over square leg for six. Dawson is 23 not out and new batsman Keith Barker has one.
Somerset v Lancashire 254-5
That's the 50 partnership up for Lancashire with Dane Vilas on 33 not out and Steven Croft on 23 unbeaten.
It comes from just 43 balls.
Gubbins b Evison 54 (Hampshire 131-5 v Notts)
Image source, Rex FeaturesNotts continue with their four-pronged right-arm seam attack and Joey Evison removes Nick Gubbins with a magnificent delivery which beats him all ends up and hits off stump.
He probably feels he deserved that after Gubbins was dropped in his previous over.
Somerset v Lancashire 251-5
That's the 250 up for Lancashire from just 53 overs.
Some brilliant, quick-scoring cricket so far from the visitors. Now can they push to 300 and beyond?
Alastair Cook has accelerated since passing 50 and is now 85 not out with Essex 161-2 against Surrey at the Kia Oval.
Luke Procter and James Sales have shared an unbroken partnership of 67 for Northants, who are now 173-6 against Durham.
Glamorgan are looking to rebuild following the loss of Hamish Rutherford are are now 163-3 after 52 overs against Gloucestershire.
In Division Three, Kent are now 169-3 after 51 against Derbyshire, while Sussex are 204-2 against Leicestershire. Ben Brown is on 60 but Fynn Hudson-Prentice had to retire hurt after a blow on the hand.
Ed Barnard now has four wickets for Worcestershire after bowling Toby Roland-Jones - with Middlesex 135-9 at Lord's
Hampshire 120-4 v Nottinghamshire
Image source, Rex FeaturesA single by Nick Gubbins off Joey Evison carries him to a half-century from 105 balls - but it's a lucky one as he edges to first slip, where Joe Clarke fails to hold the catch.
It's his seventh 50+ score of a season which he began with Middlesex before joining Hampshire - and two of the previous six were converted into hundreds.
The home side would love him to do it again today.
Lyth lbw b Norwell 1 (Yorkshire 5-2 v Warwickshire 155)
Liam Norwell traps Yorkshire opener Adam Lyth with a crafty in-swinger.
Suddenly 155 looks a very good score.
Hill lbw b Woakes 4 (Yorkshire 5-1 v Warwickshire 155)
Just what Warwickshire needed as Chris Woakes pins George Hill to get an early wicket.
And things are about to get even better for the Bears...