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Group One: Essex v Derbyshire, Durham v Worcestershire
Group Two: Middlesex v Hampshire, Somerset v Surrey
Group Three: Glamorgan v Yorkshire, Sussex v Kent
Durham 246 & 162-3 v Worcestershire 213
Meanwhile, there's been a second wicket in the session for Worcestershire as David Bedingham edges Josh Tongue behind for 33.
A clear nick that. I imagine Will Young at the non-striker's end said something like, "I think you better leave right now."
See, I told you I'd squeeze that joke in!
Middlesex 172 v Hampshire 208
Ah!
The fun is over. Keith Barker goes for 84, snaffled superbly by Peter Handscomb off the bowling of James Harris.
Hampshire lead by 36 and at 73-6 and then 143-8 that looked unlikely at best.
Middlesex 172 v Hampshire 208-9
Another big, big six towards cow corner from Keith Barker, his fourth of the innings.
James Harris follows that with two very wide deliveries to prevent Barker launching it into the leg side once more.
Middlesex 172 v Hampshire 200-9
And that's the 200 up for Hampshire, brought up with a scoop shot for four from Keith Barker.
He's 22 away from a seventh first-class century.
Middlesex 172 v Hampshire 196-9
This is turning into a fun little contest at Lord's, with a classic tailender at one end and a swashbuckling lower-order batsman at the other.
Keith Barker is properly teeing off, going six-two-six-four off Tim Murtagh's latest over.
Barker's onto 74 and Hampshire lead by 24.
Durham 246 & 151-2 v Worcestershire 213
The 150 comes up for Durham as Will Young (66 not out) and David Beddingham (33 not out) continue to tick along. I can't remember either of them ever being in trouble at any point today.
I've ran out of Will Young songs to reference by the way. Well, apart from the obvious one. But I'm saving that for when there's a wicket.
Durham's lead is 184.
Middlesex 172 v Hampshire 177-9
After nothing to update you on for a while, suddenly there's lots to tell you at once.
Shortly after Keith Barker brings up his half-century - giving Hampshire a five-run lead in the process - Brad Wheal is dismissed by Tim Murtagh.
Murtagh and Ethan Bamber now have three wickets apiece. Mohammad Abbas is the last man in.
Quick update to tell you there's nothing to update you on.
It's still raining in four of our games and it's slow going in the two that do have some play.
Essex 412-3 dec v Derbyshire 35-3
The plan is to take an early lunch in Chelmsford at 12:30 BST.
There'll be no play before lunch. Sadly, I doubt there'll be much play after lunch.
Middlesex 172 v Hampshire 160-8
Keith Barker's just launched Ethan Bamber into the stands for six and Hampshire are now trailing by just 12 runs.
Barker moves onto 43.
Kent 145 & 138-2 v Sussex 256
More bad news from Sussex's match with Kent I'm afraid. The rain is still hammering down and the umpires have declared there'll be no play before lunch.
Durham 246 & 126-2 v Worcestershire 213
Evergreen Will Young has his fifty.
We've probably used that line before to be honest. The New Zealand international reaches his half-century off 129 balls with seven fours.
Durham's lead is 159.
Middlesex 172 v Hampshire 143-8
Bowled him!
Kyle Abbott's stay at the crease is ended by Blake Cullen and Middlesex manage to at last break what was becoming an increasingly useful lower-order partnership for Hampshire.
Keith Barker is still there on 27, with the visitors still trailing by 29.
Durham 246 & 121-2 v Worcestershire 213
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Durham 246 & 121-2 v Worcestershire 213
Something incredible has just happened folks...
Somerset v Surrey 206-4
Before another ball is bowled at Taunton, the clouds sweep in and the rain sweeps down.
This, you imagine, is going to be a pretty common theme today.
We're now off in four of our six matches.
Essex 412-3 dec v Derbyshire 35-3
Still raining in Essex by the way. It'll be a while until we see any play sadly.
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Somerset v Surrey 206-4
Having edged day two after being put in to bat, Surrey have made another solid start on the third morning.
Ben Foakes (16 not out) and Jamie Smith (27 not out) continue to go along nicely, bringing up a first batting point.
Yorkshire 69-4 v Glamorgan 149
And now we do have news from Cardiff. It ain't great though...
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Durham 246 & 101-2 v Worcestershire 213
Will Young is batting with a lot of grace and brings up the 100 for Durham.
He's on 45 not out alongside new man David Bedingham who's raced to 15. Durham's lead is 133.