Division One: Durham successfully chase 91 in 18 overs to beat Notts
Surrey complete innings victory over Yorkshire after Bairstow makes 77
Wins inside three days for Hampshire, Somerset and Worcestershire
Division Two: James Anderson takes five wickets in match as Lancashire draw with Derbyshire
Glos edge to nervy victory over Kent to earn long-awaited home win
Wins for leaders Leicestershire and Glamorgan
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Glos 516 v Kent 424 & 241-7 - lead by 149 runs
That wicket of Jaydn Denly for Ben Charlesworth is the last action of the morning session as we head for lunch at Bristol with Gloucestershire in a promising position.
Kent had batted well for large spells but a couple of quick wickets for Charlesworth has changed the complexion of this match once again.
A great game of cricket and more to come in about 40 minutes.
Derbys 78-1 - target 329
Luke Wells into the attack and Harry Came takes a single to bring up the fifty-run stand.
David Lloyd also takes a single to join his partner on 30. And that's lunch.
Derbyshire will be happy with their morning's work as they reach the lunch needing 251 more runs to win after Lancashire declaration.
James Anderson removed Caleb Jewell, but that was the sole success after they declared setting the visitors 329 to win from 88 overs.
They have a minimum of 68 overs to face in which to get them.
Glos 516 v Kent 424 & 241-7
Dan Whiting
BBC Radio 5 Sports Extra
Ben Charlesworth is on absolute fire for his side at the moment.
The last hour, or so, has swung the favour to Gloucestershire.
That wicket has just tipped the scales of the hosts.
Denly b Charlesworth 5 (Glos 516 v Kent 424 & 241-7 - lead by 149 runs)
Ben Charlesworth has another and it's a beauty!
He comes over the wicket to the left-handed Jaydn Denly and gets it to cut across him, through Denly's attempted block and it clatters into the stumps.
Gloucestershire pick up their third wicket of the morning session and will go into lunch on a high.
Derbys 75-1 - target 329
Can Lancashire prise another out before lunch?
Josh Bohannon joins the attack for the first time today and a loose first ball is driven for four by David Lloyd.
The Derbyshire opener drives again for successive boundaries and then picks up a single into the legside.
Harry Came guides the fifth ball trough the vacant third man area for a third boundary of the over. A volleyed single brings a 14th run of the over.
Tom Hartley has switched ends.
Glos 516 v Kent 424 & 239-6 - lead by 147 runs
Gloucestershire's Ben Charlesworth is causing a few problems with the ball.
Jaydn Denly is the new man to the crease for Kent and Charlesworth gets one to beat the outside edge with a beauty.
This match is very finely poised indeed.
Durham 664 v Notts 407 & 161-4 - trail by 96
Codi Yusuf goes back of a length and Jack Haynes is on it quickly, rocking back and pulling square for his first boundary. Lovely timing.
Another appeal from Ben Raine as the ball flies to second slip, but there were two sounds and he gives the umpire a cheeky smile on the walk back to his mark.
But Joe Clarke dismisses a short, wide follow-up, sending it through the offside for four more.
It brings the deficit down to double figures.
Glos 516 v Kent 424 & 233-6
Aaron Bryans
Test Match Special commentator
That's a big moment in the game, it's the crucial breakthrough Gloucestershire were looking for.
After being dropped on four, he did punish them but he's gone now.
A great bit of captaincy.
Stewart b Charlesworth 41 (Glos 516 v Kent 424 & 233-6 - lead by 141 runs)
A crucial breakthrough for Gloucestershire!
The danger man Grant Stewart is gone as he steps back to try and cut it away but drags on from Ben Charlesworth.
Stewart made a mammoth 182 in the first innings. A quick 41 in the second but nothing more.
Wicketkeeper James Bracey had moved up to the stumps to force Stewart to stay in his crease and in turn play off the back foot - a decision that looks a smart one now.
How pivotal will that wicket prove to be?
Derbys 57-1 - target 329
So close!
Anderson Phillip swings one in and finds the inside edge of Harry Came's bat.
It fizzes past his off-stump by inches - cue an anxious glance from the batter and hands on head from the bowler.
A more convincing boundary as Phillip's final ball is full and wide and Came drives through the offside for four more.
Glos 516 v Kent 424 & 233-5 - lead by 141 runs
it was Grant Stewart and Chris Benjamin who put on a Kent club record for a seventh wicket partnership of 264 in the first innings and Gloucestershire must be fearing something similar.
Stewart has gone along very nicely since coming in, racing to 41 from 31 balls.
Chris Benjamin is unbeaten on 51 and the lead is now 141 runs for Kent. Their partnership is already 53.
Durham 664 v Notts 407 & 151-4 - trail by 106
Joe Clarke is up on his toes to Codi Yusuf and punches off the back foot, but James Minto does well to prevent the boundary.
Three more to Clarke and that brings up the Notts 150.
Ben Raine is back from the Finchale End after a quick breather.
Glos 516 v Kent 424 & 228-5 - lead by 136 runs
Chris Benjamin edges one for four down to third man off Josh Shaw and that brings up a well-earned half-century.
The longer this Kent innings goes on, the more frustrating things will become for Gloucestershire as they hunt their first win of the season.
Just the one wicket lost in this opening session on day four. Another wicket or two would completely change the complexion, of course, but so far, so good for Kent today.
Durham 664 v Notts 407 & 151-4
Dave Bracegirdle
BBC Radio Nottingham commentator
Notts will be hoping to get a partnership going here.
They'll want to forge ahead in the afternoon session.
The runs have come for Notts, scoring 81 runs in this session, but the wickets have also gone down.
Derbys 41-1 - target 329
All change at Old Trafford as spinner Tom Hartley replaces Tom Bailey and Anderson Phillip is on for James Anderson.
Quiet spell as their opening overs cost a single apiece.
Glos 516 v Kent 424 & 223-5
Aaron Bryans
Test Match Special commentator
Gloucestershire would love to get another wicket before lunch.
This partnership could spark some life into this game for Kent, they're starting to make them pay for that dropped catch.
Slater c Robinson b Yusuf 74 (Durham 664 v Notts 407 & 143-4 - trail by 114
Big wicket!
A lovely line and length brings its rewards as he pushes on across Ben Slater and takes a thin outside edge through to wicketkeeper Ollie Robinson.
The second Notts opener goes for a 104-ball 74 and Jack Haynes is in.
Durham can sense victory.
Durham 664 v Notts 407 & 143-3 - trail by 114
George Drissell has joined the attack and the spinner is quickly dispatched to the boundary as he serves up Ben Slater a full toss.
Joe Clarke ends the over with a big shot through the offside for four more to go 17.
Slater has 74
Derbys 39-1 - target 329
Harry Came will feel a little better as a straight drive off Tom Bailey gives him a first boundary of his innings. The runs required drop below 300.
A single keeps Came on strike as James Anderson removes his sweater.
He had been kept down to five-over spells throughout the match but is in for a sixth.
His second ball spins Came around and deflects off the inside of the bat before a fumble by Marcus Harris allows the batter a single to get off strike.
Anderson digs another short ball in towards David Lloyd's ribs, whose hook off the back foot didn't look entirely convincing and picks up a single.
But better from Came who swivels and pulls another short ball square for four more.
Glos 516 v Kent 424 & 215-5 - lead by 123 runs
Grant Stewart smashes Ajeet Singh Dale through the covers on the up. He then ploughs an on drive down the ground for another four.
Stewart has raced onto 29 from 18 balls since coming to the middle for Kent, clearly keen to build up something of a healthy lead for the visitors to make Gloucestershire work for what would be a first win on home soil in three seasons.