Dan Worrall takes 5-25 as Surrey defeat Warwickshire by an innings and 97 runs
Jamie Porter takes 6-34 as Essex earn a 125-run first innings lead over Middlesex
George Balderson scores second Championship century for Lancashire
Hampshire's Nick Gubbins scores 139no as they leave Somerset a target of 502
Colin Ackermann hits 93 not out as Leicestershire beat Gloucestershire
Billy Root makes unbeaten 84 but Glamorgan lose to Worcestershire
Dutch all-rounder Bas de Leede hits maiden hundred for Division Two leaders Durham
Matthew Revis scores 106 as Yorkshire set Derbyshire distant target of 571
Essex 304 v Middlesex 168-9
Simon Harmer has a wicket. 1-68 in his 21st over.
Toby Roland-Jones tries to slog-sweep well outside off but can only top-edge to Matt Critchley in the deep.
Ethan Bamber is the last man in. Josh de Caires is on a breezy 18.
The deficit is 136.
Essex 304 v Middlesex 163-8
Image source, Rex FeaturesA ripple of applause from a handful of away fans at Chelmsford as Josh de Caires clips one off his hips for a single to pass the follow-on total.
42 overs and change remaining today. Middlesex will want to get to tea at least without losing another wicket.
Leicestershire 204 & 168-2 v Gloucestershire 159 & 212
In the end, it was fairly comfortable and Leicestershire remain in the promotion picture with their third Championship win of the season.
Set only 168 to win, they lost both openers with only seven runs on the board, but Colin Ackermann and skipper Lewis Hill used their experience to see them home.
Ackermann drives through the fielder at mid-off for four to end the game and finish unbeaten on 93, with Hill 62 not out.
Their stand is worth 161 and the Foxes take 19 points from the match.
Leics 161-2 v Gloucs - target 168
Colin Ackermann is down the track and smashes spinner Ollie Price over long-on for six.
Price is shorter of length with the next one and Ackermann rocks back and cuts for four.
He is now 88 not out and has gone past 800 runs for the season in this innings.
Northants 232 & 79-2 v Lancashire 524
Sharp, sharp catch from George Bell at short leg as Hassan Azad comes forward to the spinner and the ball squirts off his edge. He'd played nicely for his 30.
Luke Procter comes in to join Sam Whiteman with his side 213 behind. This partnership needs to last for the rest of the day, you feel.
Leics 148-2 v Gloucs - target 168
Colin Ackermann does like them in that area.
He steers Luke Charlesworth square for four after an otherwise blemish-free over and advances to 76 not out.
Just 20 more needed.
Northants 237 & 74-1 v Lancashire 524
Sam Whiteman has defied the laws of geometry with the finest reverse paddle sweep to the boundary you'll see off Tom Hartley. Finest in every sense of the word.
It's gone to the left of off stump but the right of slip. Incredible.
He follows up with a gorgeous punch through the covers for another four.
Whiteman has 16 from 14 balls in his last dig for the club.
Durham 505-9 dec v Sussex 266 & 71-4
There's a lot on Cheteshwar Pujara's shoulders now.
He negotiates a Matthew Potts maiden and remains 26 not out.
Sussex need another 168 to make Durham bat again.
Glamorgan 130-7 v Worcs - target 260
Ben Kellaway lasts just four balls, and Glamorgan are staring down the barrel.
Kellaway defends with soft hands, and when the ball bounces back towards his stumps, he can't react quickly enough to kick it away, and is bowled.
Leics 140-2 v Gloucs - target 168
Is the correct word 'inexorable'?
Luke Charlesworth drops short of a length and Colin Ackermann cracks it square for four runs.
Just 28 more needed now by Leicestershire.
Essex 304 v Middlesex 143-8
Image source, Rex FeaturesSam Cook has 3-23.
This one kept a touch low but Ryan Higgins was back in his crease and can't prevent it clattering into off stump.
Toby Roland-Jones is the new man. Middlesex are still shy of the follow-on. Will be see a 12-run burst or will they play it safe?
Glamorgan 129-6 v Worcs - target 260
Chris Cooke looks to defend, but the ball balloons up to Jake Libby in the cordon, who takes a good catch diving forward.
The umpire reckons that flicked the inside edge before it bounced up off Cooke's thigh pad, and Glamorgan are six down.
Essex 304 v Middlesex 138-7
Sam Cook has a second and Luke Hollmann trudges off. No complaints about this one as it thuds his pads in line.
Josh de Caires is the new man. He has an eightfer, and considers himself a better batter than bowler. What can he do here? Ryan Higgins remains there on 43.
Durham 505-9 dec v Sussex 266 & 70-4
James Coles tries to drive Matthew Potts but edges but the ball isn't full enough and Scott Borthwick pouches it safely at second slip.
Six wickets needed by Durham.
If our calculations are correct - and they probably aren't - if they win this game and Worcestershire and Leicestershire also win, they will need five points from their last two games to be sure of promotion.
Leics 130-2 v Gloucs - target 168
Leicestershire in no hurry.
Colin Ackermann plays out a maiden from Luke Charlesworth and umpire Naeem Ashraf decides that a ball change is necessary.
Another 38 needed by the home side.
Glamorgan 125-5 v Worcs - target 260
Shot!
Billy Root drives gloriously through the covers to bring up his 50 from 53 balls.
Like watching his brother in a mirror.
Yorkshire 297 & 412-7 v Derbyshire 247
George Hill has become the third Yorkshire batter to depart after posting a half-century, being ousted for a swashbuckling 79.
Matthew Revis is the fourth man to get there, can he convert his 53 into a second first-class century?
The lead is up to 464 with three wickets remaining.
Hants 308 & 251-3 v Somerset 137
A wonderful catch from James Rew does for James Vince.
The Hampshire captain walks across his stumps, looking to put Neil Wagner off his length, but gets a thick outside edge.
With no slips in, Vince could well have expected to pick up four, but Rew springs away to his right and clings on one-handed.
A 162-run partnership comes to an end, and Tom Prest strides to the middle with his side firmly in command.
Glamorgan 102-5 v Worcs - target 260
Chris Cooke stands up tall and hits Dillon Pennington on top of the bounce through cover point for four.
That brings up Glamorgan's 100, but they're still a fair way away from that target with just five wickets in hand.
Durham 505-9 dec v Sussex 266 & 55-3
Parky strikes. And that's a brilliant piece of work by Ollie Robinson.
The ball drifts past the outside edge of Tom Alsop's bat as he pushes forward in defence - it doesn't look like his back foot has moved, but it must have, because Robinson whips off the bails and he is given out.
James Coles comes out to bat with Sussex 180 behind and facing the prospect of a three-day defeat.