Stirling & Robson hit tons for Middlesex
Bopara & Browne 50s drive Essex v Warwickshire
James Anderson removes centurion George Bailey on return for Lancs
Patel passes 150 for Notts
Lancashire v Hampshire 286-7
This is some recovery by Hampshire at Old Trafford.
Having been 177-6, the visitors are now approaching 300.
Kyle Abbott has raced to 45 in a quickfire stand of 54 with captain George Bailey (113 not out).
Lancashire's bowlers are wilting in the furnace.
Middlesex 300-3 v Yorkshire
All three of Middlesex's home games have ended in draws so far.
It doesn't seem like it's getting any easier for the bowlers at Lord's on the evidence of today.
The 300 is up for the hosts and Sam Robson is continuing on his merry way. The 27-year-old is up to 133.
Worcestershire 45-2 v Kent 260
Oh Moeen, why do you do this to us?!
After smacking nine fours in his first 15 balls, the England all-rounder holes out to deep mid-wicket off Matt Coles for 37.
It was stunning while it lasted, but he needed to go on for Worcestershire.
Essex 233-5 v Warwickshire
Nick Gledhill
BBC Essex
Image source, Rex FeaturesRikki Clarke's double strike with the new ball has left this match evenly poised approaching the end of the first day.
Things were looking ominous for the visitors as Nick Browne and Ravi Bopara added 127 for the fourth wicket, both gaining in fluency as conditions eased with the older ball.
Clarke's dismissal of Ryan ten Doeschate was particularly important given the Essex captain's prolific form. But Bopara is still there and heading for a deserved hundred.
Worcestershire 33-1 v Kent 260
Hello Moeen!
The Worcestershire number three has come out all-guns blazing at New Road, racing to 25 off 11 balls with six fours.
We could be in for some carnage in the final hour if the England man stays at the crease.
Middlesex 283-3 v Yorkshire
After the Paul Stirling blitz, Middlesex are going about proceedings in a calmer fashion in the evening sunshine at Lord's.
Skipper James Franklin is in defensive mode alongside century maker Sam Robson (126 not out).
Still 16 overs to go in London. Phew.
Durham v Glamorgan 199-5
Nick Selman's concentration is finally broken as Chris Rushworth strikes for Durham.
The Glamorgan opener is out lbw for 103. Great knock in the cauldron of the north east though.
Essex 227-5 v Warwickshire
Image source, Rex FeaturesWarwickshire are fighting back late in the day at Chelmsford!
Seamer Rikki Clarke picks up his second wicket in consecutive overs trapping Essex captain Ryan ten Doeschate lbw.
The hosts are in danger of letting this good platform slip with 10 overs left on day one.
Durham v Glamorgan 199-4
Talk about a gritty knock from Glamorgan's Nick Selman.
The 21-year-old reaches his fifth first-class hundred from a marathon 249 balls. Concentration of the highest order.
Meanwhile at Worcestershire, Moeen Ali has just come in after Brett D'Oliveira edged Darren Stevens to slip for a duck.
The England all-rounder gets away with a couple of boundaries, the hosts are 10-1 in reply to Kent's 260 all out.
Essex 223-4 v Warwickshire
Image source, Rex FeaturesHow often do you see a wicket after a drinks break?
Nick Browne is bowled by Rikki Clarke with the new ball just 16 short of his century.
That's a huge late boost for the visitors on such a stifling day.
Notts 262-4 v Leicestershire
Samit Patel is in the form of his life.
The Nottinghamshire all-rounder brings up his third century in just 10 days following a Championship 257 not out and a match-winning 122 not out against Essex in the One-Day Cup semi-final.
Today's numbers - 172 balls, 10 fours, 203 minutes.
Essex 221-3 v Warwickshire
Towel yourself down Nicholas, it's like a sauna at Chelmsford.
Browne has moved to 84, Ravi Bopara is on 70 and their partnership is worth 125.
14 overs to go there.
Image source, Rex FeaturesDivision Two update
A gutsy last-wicket stand of 30 between Mitch Claydon and Yasir Shah finally ends at the hand of Worcestershire paceman John Hastings as Shah is caught by Joe Leach.
Leicestershire have also made a breakthrough, Dieter Klein bowling Michael Lumb for 36, but Notts are still in a fine position at 253-4. Samit Patel is just seven away from his ton.
It's still slow going at Chester-le-Street where Glamorgan are 182-4 off 80.4 overs.
Chris Rushworth has just dismissed Aneurin Donald - Nick Selman is unbeaten on 92.
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Middlesex 262-3 v Yorkshire
Paul Stirling finally goes after making a superb maiden Championship century.
Adil Rashid gets him lbw.
Middlesex are still in an excellent position at Lord's.
Lancashire v Hampshire 232-7
Hampshire are seven down at Old Trafford.
It's probably not the man they wanted, but it's still a crucial breakthrough from spinner Stephen Parry.
Gareth Berg attempts a sweep, but is struck on the pad by the left-armer and up goes the finger.
Kyle Abbott joins skipper George Bailey in the middle.
Lancashire v Hampshire 220-6
Brilliant from George Bailey.
With wickets falling around him, the Australia batsman has brought up his century to hold this Hampshire innings together.
It came off 145 balls with 15 fours.
Gareth Berg is providing good support for his skipper at the other end, and the visitors are creeping up towards a competitive total.
Durham v Glamorgan 171-3
Nick Webb
BBC Wales Sport
Durham have kept the brakes firmly applied into the evening session despite Nick Selman approaching his third century of season.
The young Brisbane-born opener kept up his studious approach while Colin Ingram was caught behind for 33 off teenage seamer Matty Potts, playing just his second game.
But a slow pitch and a safety-first approach have made for a soporific day's play so far- only time will tell whether Glamorgan's tactics are the right ones.
Middlesex 249-2 v Yorkshire
Middlesex opener Nick Gubbins, who is away with England Lions, enjoyed Paul Stirling's first four-day century for his county it seems...
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
App users may have to click view more to read this tweet.
Lancashire v Hampshire 202-6 - tea
Scott Read
BBC Radio Manchester Sport
On a hot day in Manchester, Australian George Bailey will be feeling right at home and he's held the innings together superbly for Hampshire.
Should he go onto reach three figures in would be his first in the County Championship for Hampshire.
Lancashire have bowled really well throughout the day and have made runs tough to come by for the visitors.
Middlesex 244-2 v Yorkshire
Paul Stirling joins his partner Sam Robson in the century club moments later. It's come off just 120 balls.
The Irishman now has five first-class tons, but four of them have been for his country.
Yorkshire are toiling. Badly.