Surrey beat Hampshire by 139 runs despite Sam Northeast (129) century
Yorkshire beat Nottinghamshire by 164 runs; Ben Coad takes 10-130 in match
Derbyshire win a home County Championship match for first time since September 2014
Glamorgan beat Gloucestershire by six wickets in Division Two with late run-chase
Surrey 211 & 407-9d v Hampshire 147 & 330-9 (110 overs)
Jade Dernbach over-pitches and Sam Northeast smashes a full-toss through the offside for four to move onto 127* with his 19th four.
Image source, Getty Images
Derbyshire 261 & 333-3 dec v Middlesex 157 & 307-8 (target 442)
Half-century time for James Harris. The first Middlesex batsman to reach the landmark this season.
Another agonising moment for Derbyshire as it's four runs down to third man off Ravi Rampaul.
Harris' sixth four of the innings in his 151-ball stay at the crease to date.
Derbyshire 261 & 333-3 dec v Middlesex 157 & 302-8 (target 442)
Outside edge off Ravi Rampaul by Tom Helm is guided down to third man along the deck and goes for four.
It brings up the Middlesex 300 and Helm and James Harris continue their stubborn stay at the crease.
Surrey 211 & 407-9d v Hampshire 147 & 324-9 (104 overs)
Well bowled, Jade Dernbach - a crucial breakthrough.
The new man is Fidel Edwards, who averages seven in first-class cricket. How long will he stick around?
Surrey 211 & 407-9 dec v Hampshire 147 & 313-9 (105.5 overs)
Disastrous start to the last session for Hampshire's survival hopes.
Brad Wheal is undone by a Jade Dernbach slower ball and misjudges his attempted shot.
Hit on the pads and up goes the finger to end that long partnership between Wheal and Sam Northeast.
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So, here we go then for the final session of this round.
Three games that can still be won and another seemingly heading for a draw.
Strap yourselves in...
Derbyshire 261 & 333-3 dec v Middlesex 157 & 285-8 (target 442)
Kevin Hand
BBC Radio London at Derby
Middlesex's tail end continue to defy a Derbyshire team looking for their first home win since September 2014.
The visitors' all-rounder James Harris is bringing back memories of his heroics to keep Lancashire at bay in that same month in 2014, when he batted with Tim Murtagh to save a draw which kept Middlesex up and relegated their hosts from Division One.
Harris has already matched his achievement in that match and Murtagh is the last man for Middlesex today.
The break however means he and Tom Helm will have to build again after the interval, while the hosts will come out refreshed knowing this could all be over in two balls.
Leicestershire 422-9 dec v Sussex 438-8 dec & 177-4
Adrian Harms
Sports reporter, BBC Sussex at Grace Road
Image source, BBC SportLuke Wells starred with the ball yesterday for Sussex, taking four wickets with his leg spin, but he's better known for his batting prowess and is making the most of a flat pitch.
Although not at his best, Wells has grafted his way to 70 not out at tea, which has taken 198 balls.
Leicestershire to their credit have run in hard all day, but this game is heading for a draw.
Gloucestershire 236 & 340-8 (105 overs) v Glamorgan 526-9 dec
Bob Hunt
BBC Radio Gloucestershire at Bristol
Well this is a turn up!
Gloucestershire are still in the game at tea, with James Bracey unbeaten on 107 with valuable support from his lower middle-order colleagues.
On 340-8, the home side have eked out a lead of 50, and with the second new ball doing nothing, it could be an afternoon of frustrating toil for Glamorgan.
If Gloucestershire can still be there at 17:00 BST with a lead of around 100, Michael Hogan may be tempted to say enough is enough and shake hands.
Earlier, Dan Worrell made his maiden 50 and Matt Taylor is 34 not out at tea, two short of his best first-class score.
Division One:
The Oval: Surrey (211 & 407-9 dec) need two more wickets to beat Hampshire (147 & 309-8)
Emerald Headingley: Yorkshire (256 & 334) beat Nottinghamshire (188 & 238) by 164 runs
Division Two:
Derby: Derbyshire (261 & 333-3 dec) need two more wickets to beat Middlesex (157 & 285-8)
Bristol: Gloucestershire (236 & 340-8) lead Glamorgan (526-9 dec) by 50 runs
Leicester: Leicestershire (422-9 dec) trail Sussex (438-8 dec & 177-4) by 193 runs
Thanks Felix.
I think you might have been watching a loop feed from The Oval this afternoon with all those pull shots from Sam Northeast that keep going to fielders for dot balls.
Can he stay the course in the final session and lead his side to an unlikely draw?
Full tea time scoreboards on the way shortly with Adam Williams - I'm off for a cuppa.
Derbyshire 261 & 333-3 dec v Middlesex 157 & 285-8 (target 442)
And it's tea at Derby.
Middlesex are hanging in there still and James Harris and Tom Helm have done a superb job of crease occupation so far.
Derbyshire have to return for another session to wrap this one up (they hope).
Surrey 211 & 407-9d v Hampshire 147 & 309-8 (105 overs)
The end of an odd hour of cricket. Surrey have plans - Rikki Clarke has bowled his heart out on a flat, docile wicket to a funky legside field - but they haven't really looked like taking a wicket.
Sam Northeast (117*) and Brad Wheal (6* off 44 balls) have done an excellent job. One more session to go - could Hampshire pull off the unlikely and achieve a draw?
Or at least it will be very soon on this final day...
Derbyshire 261 & 333-3 dec v Middlesex 157 & 275-8 (target 442)
A half-century stand is brought up by James Harris (32 not out) and Tom Helm (27 not out) for Middlesex to keep the visitors still in this one.
Approaching tea as well.
Gloucestershire 236 & 335-8 (102.4 overs) v Glamorgan 526-9 dec
Century for Gloucestershire's James Bracey at Bristol as the home side's resistance continues.
A real testament of concentration as well as run-scoring...
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Surrey 211 & 407-9d v Hampshire 147 & 297-8 (100 overs)
The 50-partnership is up for Sam Northeast (108*) and Brad Wheal (5* off 35 balls). This strange period of cricket looks set to continue.
Amar Virdi from one end looking for a five-wicket haul, Rikki Clarke at the other bending his back to whiz it past the batters' ears.
Surrey 211 & 407-9d v Hampshire 147 & 287-8 (98.2 overs)
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Surrey's Rikki Clarke is banging it in half-way down the wicket, with a sort of slip cordon positioned on the legside.
It's very strange to watch, with runs being constantly turned down despite the ball whizzing to the legside boundary over and over.
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Surrey 211 & 407-9d v Hampshire 147 & 286-8 (97.3 overs)
Image source, Getty Images