Essex beat Warwickshire by an innings & 164 runs
Match figures of 14-128 for Simon Harmer
Lancs beat Hants by an innings & 30 runs
Worcs chase 399 to beat Kent
Clarke & Mitchell hit tons
Durham beat Glamorgan for first win of 2017
Durham 402 v Glamorgan 295 & 263
That's it!
Barry McCarthy gets his fourth wicket as he bowls Michael Hogan.
Durham will now have 41 overs to score 157 at 3.8 runs per over.
Game on!
Lancashire beat Hampshire by an innings and 30 runs
I think Lancashire batsman Liam Livingstone, on T20 duty with England this week, enjoyed his side's win over Hampshire.
I make that seven exclamation marks...
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Durham 402 v Glamorgan 295 & 252-9
Durham can just about still do this.
Chris Rushworth gets Marchant de Lange meaning the hosts are one wicket away from wrapping up the innings.
Glamorgan lead by 151 so if Durham get this wicket sharpish, they'll have a session and a bit to knock off the runs.
So that's this week's Division One over with.
The big news is Essex lead on 114 points while Lancashire jump up to second on 100 points after innings victories for both sides.
Two great games still going on in Division Two. To Durham we go...
Lancashire win by an innings and 30 runs
Lancashire win. Hampshire take a thumping. The Red Rose county are up to second.
Kyle Jarvis gets the final wicket as Gareth Berg nicks one into the gloves of Alex Davies.
Hampshire are all out for 168 in the second innings, 30 short of making Lancs bat again.
Worcestershire 336 & 262-2 v Kent 260 & 474
Image source, Getty ImagesWhat a knock.
When you're chasing 399 you need an opener to go big and that's just what Daryl Mitchell is doing.
His fourth Championship century in his last five matches.
138 to win.
Worcestershire 336 & 260-2 v Kent 260 & 474
Image source, Getty ImagesThis lad is certainly back in form.
142 in the first innings and now 50 in the second. Joe Clarke and Daryl Mitchell are flying through this chase comfortably at the moment. 139 to win.
Speaking of Mitchell...
Worcestershire 336 & 251-2 v Kent 260 & 474
Worcestershire's target is now less than 150 with eight wickets left. Remarkable.
Daryl Mitchell is five away from a century, Joe Clarke is on 48.
Durham 402 v Glamorgan 295 & 237-8
There doesn't seem anyway they can win it but if Glamorgan hold on for a draw against Durham they'll have Colin Ingram to thank.
He's just reached his 50 from 116 balls and nudges his side's lead to 120 with two wickets left.
Lancashire 593 v Hampshire 395 & 142-9
Hampshire are clinging on for now at Old Trafford in Division One.
Gareth Berg is still there on 39 while Brad Taylor has one from 23.
These two have got a minimum of 48 overs to bat out, a big (stupendously massive) ask.
Durham 402 v Glamorgan 295 & 216-8
Finally Durham have a breakthrough after lunch!
Tom Cullen had frustrated for 41 balls but gets his off stump knocked back by Chris Rushworth.
Glamorgan lead by 109. The race is on for Durham to take these last two wickets and get chasing.
Worcestershire 336 & 228-2 v Kent 260 & 474
So what's going on elsewhere I hear you ask.
Still three County Championship matches, that's what.
Worcestershire are once again on the charge chasing 399 to win before the close of play today. Joe Clarke has whizzed to 36 from 42 balls while Daryl Mitchell is still there on 82.
This one is going to the wire.
Worcestershire need 171. Kent need eight wickets. Both teams can hear the clock ticking away in the background.
Essex beat Warwickshire by an innings and 164 runs
Don't forget Ravi Bopara in all of this.
His first-innings' 192 allowed Simon Harmer to spin Essex to victory.
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Essex beat Warwickshire by an innings and 164 runs
Wow.
Those stats point to quite a four days for Simon Harmer.
Essex are also flying. They're top of Division One by 25 points as it stands, you'd expect that is soon to be cut to 14 by Lancashire.
Can they do it?
Essex beat Warwickshire by an innings and 164 runs
Image source, Rex FeaturesSimon Harmer's match figures of 14-128 are the 13th best in Essex's history.
Walter Mead is top of the tree - he took 17-119 against Hampshire in 1895.
Harmer is the first Essex man to take 14 wickets since Mark Ilott claimed 14-105 against Northants in 1995.
Lancashire 593 v Hampshire 395 & 124-9
Lancashire are hot on Essex's heels!
Kyle Abbott feathers Ryan McLaren behind and Alex Davies does the rest.
One wicket to win now for Lancashire. They're heading up to second. Contenders?
Essex beat Warwickshire by an innings and 164 runs
What a performance from Essex and Simon Harmer. The best figures since 2014 anywhere in the County Championship.
Essex fans... Your side are right in with a shout of the title.
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Essex beat Warwickshire by an innings and 164 runs
Image source, Rex FeaturesAll over! Warwickshire are all out for 94.
Simon Harmer gets the final wicket as Sunny Singh edges him to Alastair Cook, and finishes with a career-best 8-36.
He leads his team off with match ball in hand. He's taken 14 of the 20 wickets to fall in a match.
The Chelmsford locals won't forget that performance in a hurry.
Essex 541-9 dec v Warwickshire 283 & 94-9
Image source, Rex FeaturesJon just said it felt like Warwickshire had no new key players for years.
Well there's certainly plenty of experience in this Bears side, eight of their players are aged 30 and over.
Andrew Umeed - 21
Ian Westwood - 34
Jonathan Trott - 36
Ian Bell - 35
Sam Hain - 21
Tim Ambrose - 34
Rikki Clarke - 35
Keith Barker - 30
Jeetan Patel - 37
Boyd Rankin - 32
Sunny Singh - 21
Essex 541-9 dec v Warwickshire 283 & 94-9
Guess who? Yep that man Simon Harmer.
The South African has his 13th wicket of the match as he bamboozles Boyd Rankin with his spin.
The fat lady is up on the stage and clearing her throat.