Will Williams into the attack at first-change for Lancashire and Adam Hose welcomes him by hitting his third ball for four.

George Balderson then strays down leg and flicks off Hose's thigh to give wicketkeeper Matty Hurst no chance. Four runs.

Six more for James Wharton to move to 248! His eighth six to go with 30 fours.

He's belted James Sanderson over long on going forward with a beautifully lofted drive.

Spinner Fateh Singh is round the wicket to Jonny Bairstow, who goes inside-out to drive through extra cover for two. He's on 42 off 39 balls.

Single to extra cover.

Wharton carves the next ball through backward point for a single.

Century-maker Freddie McCann is into the attack in place of Rob Lord and we have spin at both ends.

He serves up a loopy full toss which Sam Hain dispatches down the ground for four to move into the nineties.

But McCann then almost has a wicket with his fourth ball as Ed Barnard goes close to chopping on.

Image source, Rex Features

Rob Lord is struggling to nail down a consistent line and length and continues to get a bit of tap.

An attempted yorker ends up as a low full toss which Sam Hain drives straight down the ground for four. A fourth boundary off his last two overs.

Ed Barnard then gets in on the act, hitting Farhan Ahmed's first ball over midwicket for another four.

The Bears within 37 runs of a batting point.

Adam Hose drives George Balderson through the covers to bring up the Worcestershire fifty in the 18th over.

Muted applause with half of the batters back in the hutch.

Hose repeats the dose for back-to-back boundaries to go to 15.

He then goes on to the back foot to chop Tom Bailey through the offside for a third quick boundary to go 19.

Gus Miller and James Sales have been taken to the cleaners here as Yorkshire continue to pile on the runs.

James Wharton slams James Sales over mid wicket for six and he takes six more off the bowling of Gus Miller in the same region in the next over.

He takes the partnership with Jonny Bairstow to 100 in 59 balls driving Miller down the ground and swivel pulls six more over mid wicket.

The 500 comes up in 99 overs with a powerful front footed slap over wide mid on.

25 runs off that over! 25!

50 for Ed Barnardpublished at 11:53 British Summer Time

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Notts 487 v Warwickshire 204-4

Ed Barnard carves Rob Lord into the offside for four to reach fifty in Championship cricket for the seventh time this season.

It's come off 108 balls with eight boundaries.

It's also the 27th first-class fifty of the all-rounder's career. Hats off.

50 for Dom Sibleypublished at 11:51 British Summer Time

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Essex 508-8 dec v Surrey 86-4

Image source, Getty Images

There's a half-century for Dom Sibley, who drives Matt Critchley to long-off for a single to reach the landmark from exactly 100 balls.

Not a bad strike rate - though let's not forget Sibley is a key component of Surrey's T20 side these days!

It's the sixth time the opener has passed 50 in the County Championship this season, converting two of them into hundreds.

Tom Alsop is down the track to Josh de Caires, smashing the spinner over long on for six to take Sussex past 200.

The team are within 50 runs of a batting point and of course the Division Two title.

200 up for Warwickshirepublished at 11:49 British Summer Time

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Notts 487 v Warwickshire 200-4

Rob Lord into his second over of the day replacing Brett Hutton.

Ed Barnard was a handful with the ball and is now doing his bit with the bat as a cover drive brings him a second pair of back-to-back fours in as many overs to go to 48.

First spin of the morning as Farhan Ahmed (2-33) comes on at the Radcliffe Road End.

Sam Hain nudges his first ball for a single and Barnard then brings out the sweep and picks up one more to move the Bears within 50 of a first batting point.

50 for Jack Leaningpublished at 11:47 British Summer Time

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Durham 360 v Kent 146-4

Image source, Getty Images

Good knock by Jack Leaning, who so often holds the Kent batting together and he brings up his fourth half-century of the season, punching Callum Parkinson off the back foot for a couple.

Leaning's 50 comes up from 108 balls, with Joe Denly going nicely at the other end on 29.

50 for Tom Alsoppublished at 11:46 British Summer Time

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Sussex 185-2 v Middlesex 271

Tom Alsop is forward to Luke Hollman, squeezing the spinner through square leg to reach 50 off 114 balls with eight fours.

That's his eighth half century of the season.

200 for James Whartonpublished at 11:44 British Summer Time

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Yorks 462-3 v Northants 147

James Sales is on for the first time today from the Howard Stand End and he has the dubious pleasure of bowling to James Wharton on 198.

Got it! Driven square through the off side for four and that's a maiden first-class double century.

A hug from batting partner Jonny Bairstow and applause all round the ground.

He's the sixth double centurion for Yorkshire against Northants.

272 balls. 25 fours and four sixes.

Ed Barnard plays it late and guides Lyndon James down to the third man boundary for his fifth four.

Next ball and James goes full and Barnard drives through the covers for back-to-back boundaries to move on to 40.

The Notts bowler is struggling to find his line so far.

Change of bowling. Gus Miller is on for Jack White.

The medium pacer starts with a full toss and James Wharton pats that into the on side for one. He's not taking a risk here as he reaches 198.

Shot! Jonny Bairstow smashes four between mid off and extra cover and that's the 450! Five batting points! This contest with Sussex for the Division Two title is still on.

The lead passes 300.

Four more slapped through extra cover.

He goes again off the fifth ball! Smashed over cover for four.

He drives to short extra cover but doesn't clear the field this time.

Still 13 runs off the over though.

The charge is on. Jonny Bairstow deposits Justin Broad up and over extra cover and also gets a four whipped through mid wicket.

The 50 partnership with James Wharton comes in just 40 balls!

A leg bye off the fifth ball and Wharton keeps the strike, steering one to deep third from the crease.