18 counties split into three groups
Notts' Hameed makes second century of match in draw at Worcs
Yates century helps Bears chase 256 to beat Essex
Wins for Lancashire, Northants and Yorkshire
Hants draw with Glos; Derbyshire draw at Durham
Worcs 436 v Notts 276 & 219-0 (f/o)
Image source, Rex FeaturesTwo centuries in the match for Haseeb Hameed!
The Notts opener hits Brett D'Oliveira for four, his 13th of the innings, to go to his hundred.
It's come from 288 balls and he's now batted for a touch over 13 hours in this game.
Incredible powers of concentration from the 24-year-old.
Durham v Derbyshire 206-3 (target 384)
Matt Critchley goes to his fifth half-century in six innings this season.
Magnificent form from the Derbyshire all-rounder.
Okay, they're back under way for the final session in our remaining six matches.
Tense finishes aplenty...
Hampshire 470 v Gloucestershire 320 & 133-4
That's tea at The Ageas Bowl in this Group Two fixture.
Ian Cockbain (36*) and Ryan Higgins (13*) have put on 30 for the fifth wicket and the West Country outfit trail by 17.
Kent 169 & 345-8 v Lancashire 525
Kent looked in danger of being skittled this afternoon at one point but Ollie Robinson and Fred Klaassen have offered plenty of resistance.
Kent trail by 11 runs and this game will go into the final session.
Durham v Derbyshire 198-3 (target 384)
Wayne Madsen and Matt Critchley's unbroken century partnership has given Derbyshire every chance of saving the game.
With 186 needed for victory off 34 overs, would they want to have a go after tea?
Tea - Northants 364 & 198-2 (target 355) v Glamorgan 407 & 311-5
Ricardo Vasconcelos has made it to a century as Northants continue to chase down Glamorgan's total.
Tea has been called and they will need another 157 in the final session if they are going to take the victory today.
Warwickshire 140-2 (target 256) v Essex
That's tea in Birmingham.
What a final session we've got coming up.
Warwickshire need another 116, Essex will still feel they've got a chance if they can take a couple of quick wickets.
Rob Yates has batted beautifully for his 68 not out.
Image source, Rex FeaturesWorcs 436 v Notts 276 & 213-0 (f/o)
What a monumental effort from Notts openers Ben Slater and Haseeb Hameed this has been.
Slater is unbeaten on 107, Hameed has 98.
Back out for the final session of the match in 20 minutes. They'll shake hands on a draw after an hour I'd imagine.
Durham v Derbyshire 198-3 (target 384)
Matt Critchley and Wayne Madsen are two batsmen in some form...
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Kent 169 & 344-8 (f/o) v Lancashire 525
Lancashire's bowlers are being made to work for their next wicket by Ollie Robinson and Fred Klaassen.
They're not scoring much but have edged Kent to within 12 of making Lancashire have to bat again.
Worcs 436 v Notts 276 & 204-0 (f/o)
Image source, Rex FeaturesBen Slater and Haseeb Hameed have both faced the same number of balls in this innings - 278 apiece.
Not often you see that over this length of time. Hameed is eight runs away from his second century of the match and has now been batting for 968 hours.
Good to see the one-time England opener back in a bit of form. Does he have a chance of getting back in the international fold this summer?
Thumbs up if you'd like to see him back playing Test cricket. Thumbs down if not.
Vihari c Wheater b Walter 52 (Warwickshire 126-2, target 256 v Essex)
Game back on at Edgbaston.
It's a loose delivery first up from Paul Walter - very wide outside off stump.
Hanuma Vihari drives, the ball goes through to the keeper and up goes the finger. Vihari looks dismayed. He must think he missed it.
Image source, Rex FeaturesLots of milestones being reached there!
The majority of batsmen are enjoying a fine afternoon session.
Northants 364 & 170-2 (target 355) v Glamorgan 407 & 311-5
A 47-ball half-century for Rob Keogh has seen Northants steady the ship after losing two quick wickets earlier this afternoon.
He's being more than ably assisted by Ricardo Vasconcelos who is now on 86 not out.
Finely poised now with Northants needing 185 to win.
Durham v Derbyshire 178-3 (target 384)
Do Derbyshire still think they have a shout of winning this?
Wayne Madsen brings up a speedy half-century off 75 balls.
They still need another 206 in 40 and a bit overs. Surely not? BBC Radio Newcastle's Martin Emmerson doesn't seem to think so...
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Warwickshire 126-1 (target 256) v Essex
Hanuma Vihari goes to fifty shortly after his batting partner Rob Yates.
It's a first half-century for the India batsman in his fourth innings for Warwickshire.
The Bears seem to be cruising to their target of 256. Essex need wickets, and quickly.
Worcs 436 v Notts 276 & 196-0 (f/o)
There's Notts opener Ben Slater's ton.
It's come off 268 balls with 11 fours.
Notts lead by 36 and this game is as good as over now. I'm sure the captains will shake hands on a draw after tea.
Warwickshire 118-1 (target 256) v Essex
Image source, Rex FeaturesRob Yates drives Simon Harmer through the covers to the boundary and that's his half-century.
Fine knock from the Warwickshire opener and he's set his side well on the way to victory.
Milnes lbw Parkinson 14 (Kent 169 & 331-8 (f/o) v Lancashire 525)
Matt Parkinson has a 'five-fer' after dismissing Matt Milnes lbw.
That brings Fred Klaassen to the crease. He was out first ball in the first innings but has at least survived the first couple of balls this time around.
Kent trailing by 25 but now just those two wickets in hand.