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Six County Championship matches - three in Division One, three in Division Two. All day two.
Kent are finally bowled out for 446 by Nottinghamshire, who slump to 219-8.
Opener Sam Robson makes 86 out of Middlesex's 194 before Lancashire reply on 132-3.
Oliver Hannon-Dalby takes a career-best 7-46 as Warwickshire bowl out Northants for 250.
Durham are promoted back to Division One after a seven-year absence
Leicestershire failure to pick up any batting points confirms Durham's return to top flight.
Foxes bowled out for 108 by Sussex, who do not enforce follow-on and extend lead to 388.
Ollie Price hits 132 as Gloucestershire slump from 326-4 to 377 all out against Derbyshire.
Skipper Shan Masood out for 192 as Yorkshire are bowled out for 500 in Cardiff.
Sussex 262 & 104-2 v Leicestershire 108
Tom Alsop works a single off Rehan Ahmed to take his side into three figures.
The over itself went for double figures with Tom Clark picking up a couple of boundaries from what we'll politely call looseners.
Glos 377 v Derbys 100-0
Lovely shot from Luis Reece, waiting for a wide ball outside off and carving through point for three.
His 50 comes in 91 balls with three fours and two sixes.
It also brings up the 100 partnership with Reece in 28.1 overs.
Lancs 93-1 v Middx 194
Well, that's one way to do it.
Josh Bohannon goes down the track and lofts a perfectly decent Josh de Caires length ball over long on!
Lancs 86-1 v Middx 194
Luke Wells holds firm after that dramatic Josh de Caires over.
He goes to 48 with a firm drive through cover and reaches 50 in 65 balls with a back foot push through wide mid off.
11 fours in his innings to date.
Lancs 80-1 v Middx 194
Josh de Caires almost gets two in the over as his last ball is tapped just out of the reach of forward short leg by Bohannon.
Middlesex have a foothold in this game now.
Sussex 262 & 92-1 v Leicestershire 108
The run-rate has slowed somewhat with the introduction of some spin.
Colin Ackermann's first two overs went for a single apiece but during his third Tom Alsop times one superbly through the leg side off his hips to find the rope.
The lead is 246 and Leicestershire are staring down the barrel of a very costly defeat in the race for the one remaining promotion place.
Lancs 80-1 v Middx 194
Josh de Caires is into the attack and strikes first ball!
Keaton Jennings is surprised. He was well forward in block mode - but that looked pretty adjacent.
Josh Bohannon to bat next.
Glos 377 v Derbys 85-0
Shot! Luis Reece waits on the back foot to carve Dom Goodman through point for four runs, taking the innings total past 80 with all ten wickets in hand.
At the other end, Harry Came plays down the wrong line to Ed Middleton getting a leading edge but the ball lands safely in the off side.
Cliff run out 1 (Yorkshire 500 v Glamorgan)
A rather undignified end to the Yorkshire innings as Tykes debutant Ben Cliff gets his first single in first-class cricket to help bring up the Yorkshire 500 and is then prompt;y run out by his partner Dom Bess.
Called for an impossible single by Bess, Cliff did not make his ground.
Glamorgan will bat in 10 minutes' time.
Kent 446 v Notts 102-2
Steven Mullaney clips Nathan Gilchrist off his hip for a single to take the visitors into three figures.
Mullaney has 55 while Joe Clarke is on 34 after a delicious straight drive to the fence off Joey Evison.
Lancs 78-0 v Middx
Four more for Keaton Jennings, carving a wide ball from Higgins through point.
Lancashire looking comfortable.
Yorks 495-9 v Glamorgan
The ninth wicket goes down at Sophia Gardens.
Ben Coad is caught behind off Kiran Carlson - and that allows an opportunity to bat for Ben Cliff on his first-class debut.
And he is quickly off the mark. Congratulations, Cliff.
Lancs 74-0 v Middx 194
Keaton Jennings is looking well set here as faces Higgins, moving past 20 with a flashing drive through wide mid off four four runs.
Jayant Yadav is getting a bit of grip and turn at the other end, conceding just a single off his third over.
Glos 377 v Derbys 73-0
Dom Goodman is back into the attack, bowling his first spell from the Pavilion End.
Luis Reece and Harry Came each drop the ball into the on side for singles - and the fifth ball is pulled and top edged over the keeper's head for a streaky four.
Northants 250, Warwickshire 23-1
Kraigg Brathwaite makes just 9 on his first Edgbaston appearance for Warwickshire.
The West Indies Test skipper managed just one boundary in his 46-ball stay before being undone by a very good ball from Jack White, who had him caught behind.
Skipper Will Rhodes is next in for the Bears to join Rob Yates, who is on 10.
Lancs 68-0 v Middx 194
18 overs in and we're changing the ball here at Old Trafford.
Lancashire got a ball changed this morning and struck straight away with the wicket of Toby Roland-Jones. Might that be an omen?
Jayant Yadav bowls to Luke Wells.
Wells is down the track to the second ball, driving down the ground for four runs.
The fifth ball is driven and edged just past first slip for four to third man.
Kent 446 v Notts 92-2
The first of the season for Steven Mullaney... which seems ridiculous, having watched it.
The Notts skipper reaches the milestone from 66 balls with eight fours and a six. The eighth of those boundaries was the least convincing of all, chopping inches past his off stump off an inside edge off the bowling of former teammate Joey Evison.
Yorks 488-8 v Glamorgan
No hat-trick for Glamorgan paceman James Harris.
Dom Bess defends the hat-trick ball at the start of Harris's next over.
You would imagine that it can't be long before the Tykes call a halt here.
Or would they prefer the landmark of getting past 500?
Kent 446 v Notts 83-2
Steven Mullaney and Joe Clarke are leading the recovery with an unbroken stand across 14 overs.
Plenty still in this pitch for the batters - not what many expected on the opening morning.
Lancs 60-0 v Middx 194
Luke Wells moves on to 35 with a firm straight drive off Ryan Higgins.
Solid start from the left-hander.
Jayant Yadav is in the attack and his second ball is paddled away to backward square leg by Keaton Jennings for four more.
Batting has looked largely serene for the Red Rose so far.