Commentary of every game available at top of this page
Eight games into day two, Northants-Glos match called off on Sunday
All 18 counties split into three regional groups of six
Each side playing final group game
Two teams with most points contest five-day final
Get involved #bbccricket
Lancs 219 v Derbyshire 100-7
Well this looked unlikely before tea but Derbyshire have now managed to reach three figures.
Harvey Hosein (29) and Mattie McKiernan (16) have added 39 runs in 24 overs for the eighth-wicket partnership.
Slow-going, but exactly what Derbyshire need to do to stay in this game.
Worc 200 v Somerset 251 & 8-1
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Worcestershire's single batting point against Somerset was the first the Taunton-based side have given up in the Bob Willis Trophy.
Pretty incredible stat that.
Nottinghamshire (234-2) trail Durham (294) by 60 runs
Martin Emmerson
BBC Newcastle at Trent Bridge
Image source, Rex FeaturesBen Duckett (135 not out) and Joe Clarke (68 not out) have broken the Nottinghamshire third-wicket record against Durham.
They've added 169 runs, beating the previous best of 140 from Jake Libby and Michael Lumb in a drawn game in Chester-le-Street in 2016.
But it should have been so different. Sean Dickson dropped Clarke at first slip when he was on 16 and Alex Lees put him down in the cordon seven runs later.
Notts are now 234-2 under the lights at Trent Bridge and look rather comfortable. They trail by 60 runs.
White lbw b Harmer 23 (Essex 236 v Middlesex 138 & 120-6)
Image source, Rex FeaturesEssex bag another wicket late in the day after Middlesex show some resistance.
Robbie White departs leg before to Simon Harmer for 23 to a ball that turns back sharply to him outside off.
That ends a partnership of 36 which had edged his side ahead. They lead by 22 runs with four wickets in hand.
Green b Leach 0 (Worc 200 v Somerset 251 & 4-1)
Another twist at New Road!
Joe Leach bowls Ben Green for a duck.
He goes after 17 deliveries and I don't think he enjoyed a single one of them. The ball is moving out there.
Somerset skipper Tom Abell is the new man in. The lead is 55.
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Surrey (160-0) trail Sussex (415) by 255 runs
Image source, Getty Images100 up for Surrey skipper Rory Burns on his return to county colours!
It's come off 112 balls and included 15 fours as he and Scott Borthwick (48 not out) continue to pile on a big opening stand for the hosts.
It's also his first first-class ton of the season after a frustrating time in England colours against both West Indies and Pakistan.
Lancs 219 v Derbyshire 94-7
Derbyshire's eigth wicket is putting up a little resistance at Aigburth.
Harvey Hosein is on 26 from 98 balls while Mattie McKiernan has 14 from 61.
They still trail by 125 runs as they approach three figures.
Nottinghamshire (217-2) trail Durham (294) by 77 runs
Martin Emmerson
BBC Newcastle at Trent Bridge
Image source, Rex FeaturesDurham have dropped catches today and it has cost them greatly.
Joe Clarke was put down in the slips on 16 and 23 and has now reached a fortuitous 50. It came with seven fours in 82 balls. Last week, he was put down on eight in a T20 at Durham and made 100.
His partnership with Ben Duckett is now worth 152, with Duckett making a chanceless 100 from 151 balls, which included 16 fours.
Notts 217-2 after Durham were dismissed this morning for 294.
Kent (170) trail Hampshire (191 & 74-5) by 95 runs
There's been a lull in the seemingly never-ending flurry of wickets at Canterbury now for a while.
Hampshire wicketkeeper Lewis McManus (36 not out) and young all-rounder Tom Scriven (22 not out) have dug in after coming together at 23-5 to add 51 so far for this sixth wicket.
McManus has had a life, but their lead is also slowly edging towards three figures.
Yorkshire 36-2 v Leicestershire 124
Alea: I think Yorkshire can still get 90 points??
Yes I believe you're right Alea. But the chances of Yorkshire making 400+ and still having enough time to win seems unlikely. Should we be expecting some fireworks tomorrow then? Yorkshire have nothing to lose.
Glamorgan 124-6 v Warks 186
Quick update from Cardiff and Ian Bell - in his last ever red-ball game - has just taken a brilliant catch at slip.
It's a fourth wicket for Liam Norwell as Callum Taylor edges to the five-time Ashes winner.
Glamorgan still trail Warwickshire by 62 runs.
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Tongue b Davey 0 (Worcestershire 200 v Som 251)
Josh Davey bowls Josh Tongue for a duck to give Somerset a first-innings lead of 51.
The visitors in pole position in their chase for a place in the Bob Willis Trophy final.
Worcestershire collapsed from 121-1 to 200 all out as Craig Overton and Davey both took three wickets.
Lancs 219 v Derbys 79-7
We're back under way at Liverpool.
A big final session for Derbyshire's tail. The visitors trail Lancashire by a mammoth 140 with three wickets remaining.
Now my maths has never been my strong point but I think if Somerset and Worcestershire were to draw their match, Somerset would collect 89 points.
Yorkshire can only reach 89 if they win their match and collect five batting bonus points.
But as I said, my maths has never been that great. Feel free to correct me using #bbccricket
Essex (236) level with Middlesex (138 & 98-5)
John Simpson and Robbie White are doing their best to hang in there for Middlesex.
After some sloppy fielding from Essex gifts them some overthrows, they edge level with the hosts on the scoreboard.
Leach c Leach b Davey 6 (Worcestershire 190-9 v Som)
Josh Davey now has 101 first-class wickets as Joe Leach is caught by England's Jack Leach in the slips.
Somerset are nearly there.
Nottinghamshire 179-2 v Durham 294
Image source, Rex FeaturesAnd Duckett does get his 18th first-class century coming off 153 balls with 16 fours.
A brilliant knock from the Nottinghamshire number three!
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Kent (170) trail Hampshire (191 & 47-5) by 68 runs
You can't keep your eyes off things between Kent and Hampshire.
Chances aplenty and not all of them sticking....
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Yorkshire (36-2) trail Leicestershire (124) by 88 runs
Unfortunately, the news we feared might come from Leeds has now been confirmed.
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Nottinghamshire 169-2 v Durham 294
Ben Duckett takes 16 from a single Brydon Carse over as he moves to 94 from 150 deliveries.
Notts are going well on 169-2 trailing Durham by 125 runs as they chase a first red-ball win in two years.