Image source, Getty Images

Before we say goodnight, let's have a quick recap of day three, in which we've seen three sides pick up wins.

In Division One, Essex enjoyed a massive victory over Lancashire - by an innings and 124 runs - and Durham beat Worcestershire.

Meanwhile, Middlesex got the better of Yorkshire in Division Two.

Elsewhere, Surrey are well on top against Kent and should wrap up victory tomorrow barring any weather related hold-ups.

A special mention to double centurions Joe Clarke, who is unbeaten on 209 against Somerset, and Karun Nair who struck 202 not out as his Northamptonshire side posted 605-6 before declaring against Glamorgan.

We're back again from 10:30 BST tomorrow morning. Be sure to join us for what promises to be a gripping final day.

Division One

Essex 377 v Lancashire 146 & 107

Essex won by an innings and 124 runs

Hampshire 365 v Warwickshire 455 & 46-0

Kent 244 & 120-5 v Surrey 543-7 dec

Somerset 454 v Nottinghamshire 193 & 418-2

Worcestershire 184 & 272 v Durham 244 & 397-5 dec

Durham won by 185 runs

Division Two

Derbyshire 167 & 224-6 v Leicestershire 574-7 dec

Middlesex 246 & 158-4 v Yorkshire 159 & 244

Middlesex won by six wickets

Northamptonshire 605-6 dec v Glamorgan 271 & 104-3

Sussex 479 v Gloucestershire 417 & 81-6

Some stout defence, and good judgement, from Wayne Madsen to Ben Mike in the final over of the day sees Derbyshire through to stumps without any further loss.

A flurry of wickets gave Leicestershire a sniff of wrapping up victory today, especially after some daft shots from Derbyshire's top order in their second innings.

So credit must go to Derbyshire duo Madsen (59 not out) and Alex Thomson (46 not out) who provided some stern resistance to blunt the Foxes attack in the evening session and make it to the close.

The pair shared an unbroken stand of 80 for the seventh wicket and will resume on day four with Derbyshire 183 runs behind.

With some rain forecast tomorrow Derbyshire may yet will escape with a draw.

Dan Whiting
BBC Radio London

It's been an intriguing day's cricket.

We've seen Surrey put their foot on the accelerator pedal with Sibley, Lawrence, and cameos from Jordan Clark, Cameron Steel and Jamie Smith.

We're going to be coming back tomorrow.

Without help from the weather, Kent are going to need to produce something special to prevent champions Surrey registering their first victory of the season.

Ben Compton, though, glances Kemar Roach for four in the final over of day three as he and Joey Evison hang on for the home side.

Surrey built a 299-run first innings lead before declaring on the back of centuries by Dom Sibley (150) and Dan Lawrence (112).

And Dan Worrall took 3-18 as Kent's top order was dismantled in the final session, including the wicket of England's Zak Crawley for four.

Dan Whiting
BBC Radio London

It's a tough ask for Kent to save the game now but they've got to keep fighting, got to keep battling away.

Cameron Steel is back for the penultimate over of the day.

His earlier struggles continue as a half-tracker is pulled for one by Joey Evison.

Steel thinks he has Ben Compton lbw but it may have pitched outside leg-stump.

Block or leave - that was the approach of Ben Compton in these final overs of the day at Canterbury.

But he tucks one away to square leg for two runs to get off the mark following 29 dot balls.

The left-hander then tries to pull Kemar Roach but doesn't make a clean contact.

Two more overs to survive and then he can get some more attention from the Kent physio for his sore neck.

Six overs until stumps in Derby.

Wayne Madsen and Alex Thomson have put on 65 for the seventh wicket which is now the highest partnership of Derbyshire's innings.

Risky.

Ben Compton pads up at the end of a Dan Worrall over but the umpire turns down the Australian's appeal.

Joey Evison drives Kemar Roach through the covers for four in the next.

Four more to come.

50 for Wayne Madsenpublished at 18:44 British Summer Time 21 April

18:44 BST 21 April

Derbyshire 167 & 199-6 v Leicestershire 574-7 dec

A gritty knock, mixed in with the odd moment of flair, from Wayne Madsen as he notches his second County Championship fifty of the season shortly before the close.

The Italy international reaches his half-century with stylish cut for four through point off the bowling of Scott Currie.

Kemar Roach almost has another for Surrey as he pierces Ben Compton's defence but it just misses the stumps.

Compton is batting with an off stump guard and Roach ends the over with an lbw appeal, but the umpire says it is missing.

Ollie Robinson and Jayden Seales took two wickets each as Sussex ripped through the Gloucestershire batters on day three.

Miles Hammond ends the day not out on 25 and will start day four alongside Zafar Gohar, with Gloucestershire hoping to turn their very slender 19-run advantage into a total that could potentially be a match-winning one.

Dan Whiting
BBC Radio London

Dan Worrall strikes again - his third wicket.

And Kent are now looking down the barrel.

That's a big, big wicket.

Glamorgan are content to block out the final 15 overs of play after the loss of three wickets following an afternoon of ball-chasing at Wantage Road.

Colin Ingram and Kiran Carlson will resume on 11 and 10 respectively, with a lot of batting to do if Glamorgan are to extricate themselves from this game with a draw.

Following Ricardo Vasconcelos' departure for 182, Karun Nair provided a sparking batting exhibition for Northants, scoring an unbeaten 202 - with Saif Zaib also making 100 - before the declaration came.

Anthony Gibson
BBC Radio Somerset

A great day for Nottinghamshire, 380-1 is the Notts tally during the day.

It's been a long, hard and apart from the one wicket of Haseeb Hameed, fruitless day for Somerset's bowlers and fielders.

Early in the afternoon this match looked to heading for a draw as Fletcha Middleton and Nick Gubbins both compiled centuries.

Middleton's was his maiden first-class hundred while Gubbins made his 17th.

But Warwickshire's bowlers, spearheaded by part-time offie Rob Yates who finished with 4-37, battled back in the afternoon to give themselves a glimmer of a hope they can force a result on the final day.

With a lead of 136 heading into tomorrow Warwickshire skipper Alex Davies, who finished the day 34 not out, will have to get his declaration spot on.

Maiden from Kemar Roach.

Ben Compton is content to leave anything that isn't threatening his stumps.